Xmu and Xmuu Library API Reference

   X Version 11, Release 7.7

   Copyright © 1989 X Consortium

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     __________________________________________________________

   Table of Contents

   Introduction
   Atom Functions
   Error Handler Functions
   System Utility Functions
   Window Utility Functions
   Cursor Utility Functions
   Graphics Functions
   Selection Functions
   Type Converter Functions
   Character Set Functions
   Keyboard Event Translation Functions
   Compound Text Functions
   CloseDisplay Hook Functions
   Display Queue Functions
   Toolkit Convenience Functions
   Standard Colormap Functions
   Widget Description Functions
   Participation in the Editres Protocol
   Index

Introduction

   The Xmu Library is a collection of miscellaneous (some might
   say random) utility functions that have been useful in building
   various applications and widgets. This library is required by
   the Athena Widgets.

   Starting in XFree86 4.1.0, and incorporated into X11R6.7 and
   later releases, a subset of the functions that do not rely on
   the Athena Widgets (libXaw) or X Toolkit Intrinsics (libXt) are
   provided in a second library, libXmuu.

   Programs using either of these libraries are encouraged to
   determine the correct compiler and linker options via the xmu
   or xmuu module names for pkg-config, such as:
cc -c xapplication.c `pkg-config --cflags xmu`
cc -o xapplication xapplication.o `pkg-config --libs xmu`

Atom Functions

   To use the functions and macros defined in this section, you
   should include the header file <X11/Xmu/Atoms.h> and link
   against the libXmu library.

   XA_ATOM_PAIR(d);

   XA_CHARACTER_POSITION(d);

   XA_CLASS(d);

   XA_CLIENT_WINDOW(d);

   XA_CLIPBOARD(d);

   XA_COMPOUND_TEXT(d);

   XA_DECNET_ADDRESS(d);

   XA_DELETE(d);

   XA_FILENAME(d);

   XA_HOSTNAME(d);

   XA_IP_ADDRESS(d);

   XA_LENGTH(d);

   XA_LIST_LENGTH(d);

   XA_NAME(d);

   XA_NET_ADDRESS(d);

   XA_NULL(d);

   XA_OWNER_OS(d);

   XA_SPAN(d);

   XA_TARGETS(d);

   XA_TEXT(d);

   XA_TIMESTAMP(d);

   XA_USER(d);

   XA_UTF8_STRING(d);

   These macros take a display as argument and return an Atom. The
   name of the atom is obtained from the macro name by removing
   the leading characters "XA_". The Atom value is cached, such
   that subsequent requests do not cause another round-trip to the
   server.

   AtomPtr XmuMakeAtom(const char *name);

   name

   specifies the atom name

   This function creates and initializes an opaque object, an
   AtomPtr, for an Atom with the given name. XmuInternAtom can be
   used to cache the Atom value for one or more displays.

   char *XmuNameOfAtom(AtomPtr atom_ptr);

   atom_ptr

   specifies the AtomPtr

   The function returns the name of an AtomPtr.

   Atom XmuInternAtom(Display *dpy, AtomPtr atom_ptr);

   dpy

   specifies the connection to the X server

   atom_ptr

   specifies the AtomPtr

   This function returns the Atom for an AtomPtr. The Atom is
   cached, such that subsequent requests do not cause another
   round-trip to the server.

   char *XmuGetAtomName(Display *dpy, Atom atom);

   dpy

   specifies the connection to the X server

   atom

   specifies the atom whose name is desired

   This function returns the name of an Atom. The result is
   cached, such that subsequent requests do not cause another
   round-trip to the server.

   void XmuInternStrings(Display *dpy, String *names, Cardinal
   count, Atom *atoms);

   dpy

   specifies the connection to the X server

   names

   specifies the strings to intern

   count

   specifies the number of strings

   atoms

   returns the list of Atom values

   This function converts a list of atom names into Atom values.
   The results are cached, such that subsequent requests do not
   cause further round-trips to the server. The caller is
   responsible for preallocating the array pointed at by atoms.

Error Handler Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/Error.h> and link against the
   libXmu or libXmuu library.

   int XmuPrintDefaultErrorMessage(Display *dpy, XErrorEvent
   *event, FILE *fp);

   dpy

   specifies the connection to the X server

   event

   specifies the error

   fp

   specifies where to print the error message

   This function prints an error message, equivalent to Xlib's
   default error message for protocol errors. It returns a
   non-zero value if the caller should consider exiting, otherwise
   it returns 0. This function can be used when you need to write
   your own error handler, but need to print out an error from
   within that handler.

   int XmuSimpleErrorHandler(Display *dpy, XErrorEvent *errorp);

   dpy

   specifies the connection to the X server

   errorp

   specifies the error

   This function ignores errors for BadWindow errors for
   XQueryTree and XGetWindowAttributes, and ignores BadDrawable
   errors for XGetGeometry; it returns 0 in those cases.
   Otherwise, it prints the default error message, and returns a
   non-zero value if the caller should consider exiting, and 0 if
   the caller should not exit.

System Utility Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/SysUtil.h> and link against
   the libXmu or libXmuu library.

   int XmuGetHostname(char *buf, int maxlen);

   buf

   returns the host name

   maxlen

   specifies the length of buf

   This function stores the null terminated name of the local host
   in buf, and returns length of the name. This function hides
   operating system differences, such as whether to call
   gethostname or uname.

   int XmuSnprintf(char *str, int size, ...);

   str

   string to write output to

   size

   specifies the size of str

   This function was provided as a portable implementation of
   snprintf before all platforms could be relied on to provide
   their own. It is now deprecated in favor of calling snprintf
   directly and should only be used in software that needs to
   continue to support non-Unix98 compliant platforms.

Window Utility Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/WinUtil.h> . To use
   XmuClientWindow, you may link against either the libXmu or
   libXmuu libraries. The other functions in this section require
   linking against the libXmu library.

   Screen *XmuScreenOfWindow(Display *dpy, Window w);

   dpy

   specifies the connection to the X server

   w

   specifies the window

   This function returns the Screen on which the specified window
   was created.

   Window XmuClientWindow(Display *dpy, Window win);

   dpy

   specifies the connection to the X server

   win

   specifies the window

   This function finds a window, at or below the specified window,
   which has a WM_STATE property. If such a window is found, it is
   returned, otherwise the argument window is returned.

   Bool XmuUpdateMapHints(Display *dpy, Window w, XSizeHints
   *hints);

   dpy

   specifies the connection to the X server

   win

   specifies the window

   hints

   specifies the new hints, or NULL

   This function clears the PPosition and PSize flags and sets the
   USPosition and USSize flags in the hints structure, and then
   stores the hints for the window using XSetWMNormalHints and
   returns True. If NULL is passed for the hints structure, then
   the current hints are read back from the window using
   XGetWMNormalHints and are used instead, and True is returned;
   otherwise False is returned.

Cursor Utility Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/CurUtil.h> and link against
   the libXmu or libXmuu library.

   int XmuCursorNameToIndex(const char *name);

   name

   specifies the name of the cursor

   This function takes the name of a standard cursor and returns
   its index in the standard cursor font. The cursor names are
   formed by removing the "XC_" prefix from the cursor defines
   listed in Appendix B of the Xlib manual.

Graphics Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/Drawing.h> and link against
   the libXmu library.

   void XmuDrawRoundedRectangle(Display *dpy, Drawable draw, GC
   gc, int x, int y, int w, int h, int ew, int eh);

   dpy

   specifies the connection to the X server

   draw

   specifies the drawable

   gc

   specifies the GC

   x

   specifies the upper left x coordinate

   y

   specifies the upper left y coordinate

   w

   specifies the rectangle width

   h

   specifies the rectangle height

   ew

   specifies the corner width

   eh

   specifies the corner height

   This function draws a rounded rectangle, where x, y, w, h are
   the dimensions of the overall rectangle, and ew and eh are the
   sizes of a bounding box that the corners are drawn inside of;
   ew should be no more than half of w, and eh should be no more
   than half of h. The current GC line attributes control all
   attributes of the line.

   void XmuFillRoundedRectangle(Display *dpy, Drawable draw, GC
   gc, int x, int y, int w, int h, int ew, int eh);

   dpy

   specifies the connection to the X server

   draw

   specifies the drawable

   gc

   specifies the GC

   x

   specifies the upper left x coordinate

   y

   specifies the upper left y coordinate

   w

   specifies the rectangle width

   h

   specifies the rectangle height

   ew

   specifies the corner width

   eh

   specifies the corner height

   This function draws a filled rounded rectangle, where x, y, w,
   h are the dimensions of the overall rectangle, and ew and eh
   are the sizes of a bounding box that the corners are drawn
   inside of; ew should be no more than half of w, and eh should
   be no more than half of h. The current GC fill settings control
   all attributes of the fill contents.

   XmuDrawLogo(Display *dpy, Drawable drawable, GC gcFore, GC
   gcBack, int x, int y, unsigned int width, unsigned int height);

   dpy

   specifies the connection to the X server

   drawable

   specifies the drawable

   gcFore

   specifies the foreground GC

   gcBack

   specifies the background GC

   x

   specifies the upper left x coordinate

   y

   specifies the upper left y coordinate

   width

   specifies the logo width

   height

   specifies the logo height

   This function draws the "official" X Window System logo
   (Figure 1, "The X Logo"). The bounding box of the logo in the
   drawable is given by x, y, width, and height. The logo itself
   is filled using gcFore, and the rest of the rectangle is filled
   using gcBack.

   Figure 1. The X Logo

   Pixmap XmuCreateStippledPixmap(Screen *screen, Pixel fore,
   Pixel back, unsigned int depth);

   screen

   specifies the screen the pixmap is created on

   fore

   specifies the foreground pixel value

   back

   specifies the background pixel value

   depth

   specifies the depth of the pixmap

   This function creates a two pixel by one pixel stippled pixmap
   of specified depth on the specified screen. The pixmap is
   cached so that multiple requests share the same pixmap. The
   pixmap should be freed with XmuReleaseStippledPixmap to
   maintain correct reference counts.

   void XmuReleaseStippledPixmap(Screen *screen, Pixmap pixmap);

   screen

   specifies the screen the pixmap was created on

   pixmap

   specifies the pixmap to free

   This function frees a pixmap created with
   XmuCreateStippledPixmap.

   int XmuReadBitmapData(FILE *fstream, unsigned int *width,
   unsigned int *height, unsigned char **datap, int *x_hot, int
   *y_hot);

   fstream

   specifies the stream to read from

   width

   returns the width of the bitmap

   height

   returns the height of the bitmap

   datap

   returns the parsed bitmap data

   x_hot

   returns the x coordinate of the hotspot

   y_hot

   returns the y coordinate of the hotspot

   This function reads a standard bitmap file description from the
   specified stream, and returns the parsed data in a format
   suitable for passing to XCreateBitmapFromData. The return value
   of the function has the same interpretation as the return value
   for XReadBitmapFile.

   int XmuReadBitmapDataFromFile(const char *filename, unsigned
   int *width, unsigned int *height, unsigned char **datap, int
   *x_hot, int *y_hot);

   fstream

   specifies the file to read from

   width

   returns the width of the bitmap

   height

   returns the height of the bitmap

   datap

   returns the parsed bitmap data

   x_hot

   returns the x coordinate of the hotspot

   y_hot

   returns the y coordinate of the hotspot

   This function reads a standard bitmap file description from the
   specified file, and returns the parsed data in a format
   suitable for passing to XCreateBitmapFromData. The return value
   of the function has the same interpretation as the return value
   for XReadBitmapFile.

   Pixmap XmuLocateBitmapFile(Screen *screen, const char *name,
   char *srcname, int srcnamelen, int *widthp, int *heightp, int
   *xhotp, int *yhotp);

   screen

   specifies the screen the pixmap is created on

   name

   specifies the file to read from

   srcname

   returns the full filename of the bitmap

   srcnamelen

   specifies the length of the srcname buffer

   width

   returns the width of the bitmap

   height

   returns the height of the bitmap

   xhotp

   returns the x coordinate of the hotspot

   yhotp

   returns the y coordinate of the hotspot

   This function reads a file in standard bitmap file format,
   using XReadBitmapFile, and returns the created bitmap. The
   filename may be absolute, or relative to the global resource
   named bitmapFilePath with class BitmapFilePath. If the resource
   is not defined, the default value is the build symbol
   BITMAPDIR, which is typically "/usr/include/X11/bitmaps". If
   srcnamelen is greater than zero and srcname is not NULL, the
   null terminated filename will be copied into srcname. The size
   and hotspot of the bitmap are also returned.

   Pixmap XmuCreatePixmapFromBitmap(Display *dpy, Drawable d,
   Pixmap bitmap, unsigned int width, unsigned int height,
   unsigned int depth, unsigned long fore, unsigned long back);

   dpy

   specifies the connection to the X server

   screen

   specifies the screen the pixmap is created on

   bitmap

   specifies the bitmap source

   width

   specifies the width of the pixmap

   height

   specifies the height of the pixmap

   depth

   specifies the depth of the pixmap

   fore

   specifies the foreground pixel value

   back

   specifies the background pixel value

   This function creates a pixmap of the specified width, height,
   and depth, on the same screen as the specified drawable, and
   then performs an XCopyPlane from the specified bitmap to the
   pixmap, using the specified foreground and background pixel
   values. The created pixmap is returned.

Selection Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/StdSel.h> and link against the
   libXmu library.

   Boolean XmuConvertStandardSelection(Widget w, Time time, Atom
   *selection, Atom *target, Atom *type, XPointer value, unsigned
   long *length, int *format);

   w

   specifies the widget which currently owns the selection

   time

   specifies the time at which the selection was established

   selection

   this argument is ignored

   target

   specifies the target type of the selection

   type

   returns the property type of the converted value

   value

   returns the converted value

   length

   returns the number of elements in the converted value

   format

   returns the size in bits of the elements

   This function converts the following standard selections:
   CLASS, CLIENT_WINDOW, DECNET_ADDRESS, HOSTNAME, NAME, OWNER_OS,
   TARGETS, TIMESTAMP, and USER. It returns True if the conversion
   was successful, else it returns False.

Type Converter Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/Converters.h> and link against
   the libXmu library.

   void XmuCvtFunctionToCallback(XrmValue *args, Cardinal
   *num_args, XrmValuePtr fromVal, XrmValuePtr toVal);

   args

   this argument is ignored

   num_args

   this argument is ignored

   fromVal

   the function to convert

   toVal

   the place to store the converted value

   This function converts a callback procedure to a callback list
   containing that procedure, with NULL closure data. To use this
   converter, include the following in your widget's
   ClassInitialize procedure:
XtAddConverter(XtRCallProc, XtRCallback, XmuCvtFunctionToCallback, NULL,
 0);

   void XmuCvtStringToBackingStore(XrmValue *args, Cardinal
   *num_args, XrmValuePtr fromVal, XrmValuePtr toVal);

   args

   this argument is ignored

   num_args

   this argument must be a pointer to a Cardinal containing the
   value 0

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   This function converts a string to a backing-store integer as
   defined in <X11/X.h>. The string "notUseful" converts to
   NotUseful, "whenMapped" converts to WhenMapped, and "always"
   converts to Always. The string "default" converts to the value
   Always + WhenMapped + NotUseful. The case of the string does
   not matter. To use this converter, include the following in
   your widget's ClassInitialize procedure:
XtAddConverter(XtRString, XtRBackingStore, XmuCvtStringToBackingStore, N
ULL, 0);

   void XmuCvtStringToBitmap(XrmValue *args, Cardinal *num_args,
   XrmValuePtr fromVal, XrmValuePtr toVal);

   args

   the sole argument specifies the Screen on which to create the
   bitmap

   num_args

   must be the value 1

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   This function creates a bitmap (a Pixmap of depth one) suitable
   for window manager icons. The string argument is the name of a
   file in standard bitmap file format. For the possible filename
   specifications, see XmuLocateBitmapFile. To use this converter,
   include the following in your widget's ClassInitialize
   procedure:
static XtConvertArgRec screenConvertArg[] = {
  {XtBaseOffset, (XtPointer)XtOffset(Widget, core.screen), sizeof(Screen
 *)}
};

XtAddConverter(XtRString, XtRBitmap, XmuCvtStringToBitmap,
                 screenConvertArg, XtNumber(screenConvertArg));

   Boolean XmuCvtStringToColorCursor(Display *dpy, XrmValuePtr
   args, Cardinal *num_args, XrmValuePtr fromVal, XrmValuePtr
   toVal, XtPointer *data);

   dpy

   specifies the display to use for conversion warnings

   args

   specifies the required conversion arguments

   num_args

   specifies the number of required conversion arguments, which is
   4

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   data

   this argument is ignored

   This function converts a string to a Cursor with the foreground
   and background pixels specified by the conversion arguments.
   The string can either be a standard cursor name formed by
   removing the "XC_" prefix from any of the cursor defines listed
   in Appendix B of the Xlib Manual, a font name and glyph index
   in decimal of the form "FONT fontname index [[font] index]", or
   a bitmap filename acceptable to XmuLocateBitmapFile. To use
   this converter, include the following in the widget
   ClassInitialize procedure:
static XtConvertArgRec colorCursorConvertArgs[] = {
  {XtWidgetBaseOffset, (XtPointer) XtOffsetOf(WidgetRec, core.screen),
   sizeof(Screen *)},
  {XtResourceString, (XtPointer) XtNpointerColor, sizeof(Pixel)},
  {XtResourceString, (XtPointer) XtNpointerColorBackground, sizeof(Pixel
)},
  {XtWidgetBaseOffset, (XtPointer) XtOffsetOf(WidgetRec, core.colormap),
   sizeof(Colormap)}
};


XtSetTypeConverter(XtRString, XtRColorCursor, XmuCvtStringToColorCursor,
                 colorCursorConvertArgs, XtNumber(colorCursorConvertArgs
),
                 XtCacheByDisplay, NULL);

   The widget must recognize XtNpointerColor and
   XtNpointerColorBackground as resources, or specify other
   appropriate foreground and background resources. The widget's
   Realize and SetValues methods must cause the converter to be
   invoked with the appropriate arguments when one of the
   foreground, background, or cursor resources has changed, or
   when the window is created, and must assign the cursor to the
   window of the widget.

   void XmuCvtStringToCursor(XrmValue *args, Cardinal *num_args,
   XrmValuePtr fromVal, XrmValuePtr toVal);

   args

   specifies the required conversion argument, the screen

   num_args

   specifies the number of required conversion arguments, which is
   1

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   This function converts a string to a Cursor. The string can
   either be a standard cursor name formed by removing the "XC_"
   prefix from any of the cursor defines listed in Appendix B of
   the Xlib Manual, a font name and glyph index in decimal of the
   form "FONT fontname index [[font] index]", or a bitmap filename
   acceptable to XmuLocateBitmapFile. To use this converter,
   include the following in your widget's ClassInitialize
   procedure:
static XtConvertArgRec screenConvertArg[] = {
  {XtBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.screen), sizeof(S
creen *)}
};

XtAddConverter(XtRString, XtRCursor, XmuCvtStringToCursor,
                 screenConvertArg, XtNumber(screenConvertArg));

   void XmuCvtStringToGravity(XrmValue *args, Cardinal *num_args,
   XrmValuePtr fromVal, XrmValuePtr toVal);

   args

   this argument is ignored

   num_args

   this argument must be a pointer to a Cardinal containing the
   value 0

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   This function converts a string to an XtGravity enumeration
   value. The string "forget" and a NULL value convert to
   ForgetGravity, "NorthWestGravity" converts to NorthWestGravity,
   the strings "NorthGravity" and "top" convert to NorthGravity,
   "NorthEastGravity" converts to NorthEastGravity, the strings
   "West" and "left" convert to WestGravity, "CenterGravity"
   converts to CenterGravity, "EastGravity" and "right" convert to
   EastGravity, "SouthWestGravity" converts to SouthWestGravity,
   "SouthGravity" and "bottom" convert to SouthGravity,
   "SouthEastGravity" converts to SouthEastGravity,
   "StaticGravity" converts to StaticGravity, and "UnmapGravity"
   converts to UnmapGravity. The case of the string does not
   matter. To use this converter, include the following in your
   widget's class initialize procedure:
XtAddConverter(XtRString, XtRGravity, XmuCvtStringToGravity, NULL, 0);

   void XmuCvtStringToJustify(XrmValue *args, Cardinal *num_args,
   XrmValuePtr fromVal, XrmValuePtr toVal);

   args

   this argument is ignored

   num_args

   this argument is ignored

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   This function converts a string to an XtJustify enumeration
   value. The string "left" converts to XtJustifyLeft, "center"
   converts to XtJustifyCenter, and "right" converts to
   XtJustifyRight. The case of the string does not matter. To use
   this converter, include the following in your widget's
   ClassInitialize procedure:
XtAddConverter(XtRString, XtRJustify, XmuCvtStringToJustify, NULL, 0);

   void XmuCvtStringToLong(XrmValue *args, Cardinal *num_args,
   XrmValuePtr fromVal, XrmValuePtr toVal);

   args

   this argument is ignored

   num_args

   this argument must be a pointer to a Cardinal containing 0

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   This function converts a string to an integer of type long. It
   parses the string using sscanf with a format of "%ld". To use
   this converter, include the following in your widget's
   ClassInitialize procedure:
XtAddConverter(XtRString, XtRLong, XmuCvtStringToLong, NULL, 0);

   void XmuCvtStringToOrientation(XrmValue *args, Cardinal
   *num_args, XrmValuePtr fromVal, XrmValuePtr toVal);

   args

   this argument is ignored

   num_args

   this argument is ignored

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   This function converts a string to an XtOrientation enumeration
   value. The string "horizontal" converts to XtorientHorizontal
   and "vertical" converts to XtorientVertical. The case of the
   string does not matter. To use this converter, include the
   following in your widget's ClassInitialize procedure:
XtAddConverter(XtRString, XtROrientation, XmuCvtStringToOrientation, NUL
L, 0);

   Boolean XmuCvtStringToShapeStyle(Display *dpy, XrmValue *args,
   Cardinal *num_args, XrmValuePtr fromVal, XrmValuePtr toVal,
   XtPointer *data);

   dpy

   the display to use for conversion warnings

   args

   this argument is ignored

   num_args

   this argument is ignored

   fromVal

   the value to convert from

   toVal

   the place to store the converted value

   data

   this argument is ignored

   This function converts a string to an integer shape style. The
   string "rectangle" converts to XmuShapeRectangle, "oval"
   converts to XmuShapeOval, "ellipse" converts to
   XmuShapeEllipse, and "roundedRectangle" converts to
   XmuShapeRoundedRectangle. The case of the string does not
   matter. To use this converter, include the following in your
   widget's ClassInitialize procedure:
XtSetTypeConverter(XtRString, XtRShapeStyle, XmuCvtStringToShapeStyle,
                     NULL, 0, XtCacheNone, NULL);

   Boolean XmuReshapeWidget(Widget w, int shape_style, int
   corner_width, int corner_height);

   w

   specifies the widget to reshape

   shape_style

   specifies the new shape

   corner_width

   specifies the width of the rounded rectangle corner

   corner_height

   specified the height of the rounded rectangle corner

   This function reshapes the specified widget, using the Shape
   extension, to a rectangle, oval, ellipse, or rounded rectangle,
   as specified by shape_style ( XmuShapeRectangle, XmuShapeOval,
   XmuShapeEllipse, and XmuShapeRoundedRectangle, respectively).
   The shape is bounded by the outside edges of the rectangular
   extents of the widget. If the shape is a rounded rectangle,
   corner_width and corner_height specify the size of the bounding
   box that the corners are drawn inside of (see
   XmuFillRoundedRectangle); otherwise, corner_width and
   corner_height are ignored. The origin of the widget within its
   parent remains unchanged.

   void XmuCvtStringToWidget(XrmValue *args, Cardinal *num_args,
   XrmValuePtr fromVal, XrmValuePtr toVal);

   args

   the sole argument is the parent Widget

   num_args

   this argument must be 1

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   This function converts a string to an immediate child widget of
   the parent widget passed as an argument. Note that this
   converter only works for child widgets that have already been
   created; there is no lazy evaluation. The string is first
   compared against the names of the normal and popup children,
   and if a match is found the corresponding child is returned. If
   no match is found, the string is compared against the classes
   of the normal and popup children, and if a match is found the
   corresponding child is returned. The case of the string is
   significant. To use this converter, include the following in
   your widget's ClassInitialize procedure:
static XtConvertArgRec parentCvtArg[] = {
  {XtBaseOffset, (XtPointer)XtOffset(Widget, core.parent), sizeof(Widget
)},
};

XtAddConverter(XtRString, XtRWidget, XmuCvtStringToWidget,
                 parentCvtArg, XtNumber(parentCvtArg));

   Boolean XmuNewCvtStringToWidget(Display *dpy, XrmValuePtr args,
   Cardinal *num_args, XrmValuePtr fromVal, XrmValuePtr toVal,
   XtPointer *data);

   dpy

   the display to use for conversion warnings

   args

   the sole argument is the parent Widget

   num_args

   this argument must be a pointer to a Cardinal containing the
   value 1

   fromVal

   specifies the string to convert

   toVal

   returns the converted value

   data

   this argument is ignored

   This converter is identical in functionality to
   XmuCvtStringToWidget, except that it is a new-style converter,
   allowing the specification of a cache type at the time of
   registration. Most widgets will not cache the conversion
   results, as the application may dynamically create and destroy
   widgets, which would cause cached values to become illegal. To
   use this converter, include the following in the widget's class
   initialize procedure:
static XtConvertArgRec parentCvtArg[] = {
  {XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.parent),
   sizeof(Widget)}
};

XtSetTypeConverter(XtRString, XtRWidget, XmuNewCvtStringToWidget,
                   parentCvtArg, XtNumber(parentCvtArg), XtCacheNone, NU
LL);

Character Set Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/CharSet.h> and link against
   the libXmu or libXmuu library.

Warning

   The functions in this section are deprecated because they don't
   work in most locales now supported by X11; most platforms
   provide alternatives in their system libraries.

   void XmuCopyISOLatin1Lowered(char *dst, const char *src);

   dst

   returns the string copy

   src

   specifies the string to copy

   This function copies a null terminated string from src to dst
   (including the null), changing all Latin-1 uppercase letters to
   lowercase. The string is assumed to be encoded using ISO
   8859-1.

   Note that like strcpy the caller is responsible for ensuring
   the size of dst is at least as large as the size of src.

   void XmuNCopyISOLatin1Lowered(char *dst, const char *src, int
   size);

   dst

   returns the string copy

   src

   specifies the string to copy

   size

   maximum number of characters (including the null terminator) to
   write to dst

   This function copies up to size - 1 characters of a null
   terminated string from src to dst, and terminates it with a
   null, changing all Latin-1 uppercase letters to lowercase. The
   string is assumed to be encoded using ISO 8859-1.

   void XmuCopyISOLatin1Uppered(char *dst, const char *src);

   dst

   returns the string copy

   src

   specifies the string to copy

   This function copies a null terminated string from src to dst
   (including the null), changing all Latin-1 lowercase letters to
   uppercase. The string is assumed to be encoded using ISO
   8859-1.

   Note that like strcpy the caller is responsible for ensuring
   the size of dst is at least as large as the size of src.

   void XmuNCopyISOLatin1Uppered(char *dst, const char *src, int
   size);

   dst

   returns the string copy

   src

   specifies the string to copy

   size

   maximum number of characters (including the null terminator) to
   write to dst

   This function copies up to size - 1 characters of a null
   terminated string from src to dst, and terminates it with a
   null, changing all Latin-1 lowercase letters to uppercase. The
   string is assumed to be encoded using ISO 8859-1.

   int XmuCompareISOLatin1(const char *first, const char *second);

   first

   specifies a string to compare

   second

   specifies a string to compare

   This function compares two null terminated Latin-1 strings,
   ignoring case differences, and returns an integer greater than,
   equal to, or less than 0, according to whether first is
   lexicographically greater than, equal to, or less than second.
   The two strings are assumed to be encoded using ISO 8859-1.

Keyboard Event Translation Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/Lookup.h> . and link against
   the libXmu library.

Warning

   The functions in this section are deprecated because they don't
   work in most locales now supported by X11; the function
   XmbLookupString provides a better alternative.

   int XmuLookupLatin1(XKeyEvent *event, unsigned char *buffer,
   int nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is identical to XLookupString, and exists only
   for naming symmetry with other functions.

   int XmuLookupLatin2(XKeyEvent *event, unsigned char *buffer,
   int nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to an Latin-2 (ISO 8859-2) string, or to an ASCII
   control string.

   int XmuLookupLatin3(XKeyEvent *event, unsigned char *buffer,
   int nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to an Latin-3 (ISO 8859-3) string, or to an ASCII
   control string.

   int XmuLookupLatin4(XKeyEvent *event, unsigned char *buffer,
   int nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to an Latin-4 (ISO 8859-4) string, or to an ASCII
   control string.

   int XmuLookupKana(XKeyEvent *event, unsigned char *buffer, int
   nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to a string in an encoding consisting of Latin-1
   (ISO 8859-1) and ASCII control in the Graphics Left half
   (values 0 to 127), and Katakana in the Graphics Right half
   (values 128 to 255), using the values from JIS X201-1976.

   int XmuLookupJISX0201(XKeyEvent *event, unsigned char *buffer,
   int nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to a string in the JIS X0201-1976 encoding,
   including ASCII control.

   int XmuLookupArabic(XKeyEvent *event, unsigned char *buffer,
   int nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to a Latin/Arabic (ISO 8859-6) string, or to an
   ASCII control string.

   int XmuLookupCyrillic(XKeyEvent *event, unsigned char *buffer,
   int nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to a Latin/Cyrillic (ISO 8859-5) string, or to an
   ASCII control string.

   int XmuLookupGreek(XKeyEvent *event, unsigned char *buffer, int
   nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to a Latin/Greek (ISO 8859-7) string, or to an
   ASCII control string.

   int XmuLookupHebrew(XKeyEvent *event, unsigned char *buffer,
   int nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to a Latin/Hebrew (ISO 8859-8) string, or to an
   ASCII control string.

   int XmuLookupAPL(XKeyEvent *event, unsigned char *buffer, int
   nbytes, KeySym *keysym, XComposeStatus *status);

   event

   specifies the key event

   buffer

   returns the translated characters

   nbytes

   specifies the length of the buffer

   keysym

   returns the computed KeySym, or None

   status

   specifies or returns the compose state

   This function is similar to XLookupString, except that it maps
   a key event to an APL string.

Compound Text Functions

   The functions defined in this section are for parsing Compound
   Text strings, decomposing them into individual segments.
   Definitions needed to use these routines are in the include
   file <X11/Xmu/Xct.h> and link against the libXmu library.

Warning

   The functions in this section are deprecated because they shift
   the burden for recently introduced locale encodings to the
   application. The use of the UTF8_STRING text encoding provides
   a better alternative.

   A Compound Text string is represented as the following type:
        typedef unsigned char *XctString;

   XctData XctCreate(const XctString string, int length, XctFlags
   flags);

   string

   the Compound Text string

   length

   the number of bytes in string

   flags

   parsing control flags

   This function creates an XctData structure for parsing a
   Compound Text string. The string need not be null terminated.
   The following flags are defined to control parsing of the
   string:

   XctSingleSetSegments

   This means that returned segments should contain characters
   from only one set (C0, C1, GL, GR). When this is requested,
   XctSegment is never returned by XctNextItem, instead
   XctC0Segment, XctC1Segment, XctGlSegment, and XctGRSegment are
   returned. C0 and C1 segments are always returned as singleton
   characters.

   XctProvideExtensions

   This means that if the Compound Text string is from a higher
   version than this code is implemented to, then syntactically
   correct but unknown control sequences should be returned as
   XctExtension items by XctNextItem. If this flag is not set, and
   the Compound Text string version indicates that extensions
   cannot be ignored, then each unknown control sequence will be
   reported as an XctError.

   XctAcceptC0Extensions

   This means that if the Compound Text string is from a higher
   version than this code is implemented to, then unknown C0
   characters should be treated as if they were legal, and
   returned as C0 characters (regardless of how
   XctProvideExtensions is set) by XctNextItem. If this flag is
   not set, then all unknown C0 characters are treated according
   to XctProvideExtensions.

   XctAcceptC1Extensions

   This means that if the Compound Text string is from a higher
   version than this code is implemented to, then unknown C1
   characters should be treated as if they were legal, and
   returned as C1 characters (regardless of how
   XctProvideExtensions is set) by XctNextItem. If this flag is
   not set, then all unknown C1 characters are treated according
   to XctProvideExtensions.

   XctHideDirection

   This means that horizontal direction changes should be reported
   as XctHorizontal items by XctNextItem. If this flag is not set,
   then direction changes are not returned as items, but the
   current direction is still maintained and reported for other
   items. The current direction is given as an enumeration, with
   the values XctUnspecified, XctLeftToRight, and XctRightToLeft.

   XctFreeString

   This means that XctFree should free the Compound Text string
   that is passed to XctCreate. If this flag is not set, the
   string is not freed.

   XctShiftMultiGRToGL

   This means that XctNextItem should translate GR segments
   on-the-fly into GL segments for the GR sets: GB2312.1980-1,
   JISX0208.1983-1, and KSC5601.1987-1.

   void XctReset(XctData data);

   data

   specifies the Compound Text structure

   This function resets the XctData structure to reparse the
   Compound Text string from the beginning.

   XctResult XctNextItem(XctData data);

   data

   specifies the Compound Text structure

   This function parses the next "item" from the Compound Text
   string. The return value indicates what kind of item is
   returned. The item itself, its length, and the current
   contextual state, are reported as components of the XctData
   structure. XctResult is an enumeration, with the following
   values:

   XctSegment

   the item contains some mixture of C0, GL, GR, and C1
   characters.

   XctC0Segment

   the item contains only C0 characters.

   XctGLSegment

   the item contains only GL characters.

   XctC1Segment

   the item contains only C1 characters.

   XctGRSegment

   the item contains only GR characters.

   XctExtendedSegment

   the item contains an extended segment.

   XctExtension

   the item is an unknown extension control sequence.

   XctHorizontal

   the item indicates a change in horizontal direction or depth.
   The new direction and depth are recorded in the XctData
   structure.

   XctEndOfText

   The end of the Compound Text string has been reached.

   XctError

   the string contains a syntactic or semantic error; no further
   parsing should be performed.

   The following state values are stored in the XctData structure:
    XctString           item;           /* the action item */
    unsigned            item_length;    /* length of item in bytes */
    int                 char_size;      /* the number of bytes per chara
cter in
                                         * item, with zero meaning varia
ble */
    char                *encoding;      /* the XLFD encoding name for it
em */
    XctHDirection       horizontal;     /* the direction of item */
    unsigned            horz_depth;     /* the current direction nesting
 depth */
    char                *GL;            /* the "{I} F" string for the cu
rrent GL */
    char                *GL_encoding;   /* the XLFD encoding name for th
e current GL */
    int                 GL_set_size;    /* 94 or 96 */
    int                 GL_char_size;   /* the number of bytes per GL ch
aracter */
    char                *GR;            /* the "{I} F" string for the cu
rrent GR */
    char                *GR_encoding;   /* the XLFD encoding name for th
e current GR */
    int                 GR_set_size;    /* 94 or 96 */
    int                 GR_char_size;   /* number of bytes per GR charac
ter */
    char                *GLGR_encoding; /* the XLFD encoding name for th
e current
                                         *  GL+GR, if known */

   void XctFree(XctData data);

   data

   specifies the Compound Text structure

   This function frees all data associated with the XctData
   structure.

CloseDisplay Hook Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/CloseHook.h> and link against
   the libXmu library.

   CloseHook XmuAddCloseDisplayHook(Display *dpy, int ( *func )
   (Display *, XPointer), XPointer arg);

   dpy

   specifies the connection to the X server

   func

   specifies the function to call at display close

   arg

   specifies arbitrary data to pass to func

   This function adds a callback for the given display. When the
   display is closed, the given function will be called with the
   given display and argument as:
        (*func)(dpy, arg)

   The function is declared to return an int even though the value
   is ignored, because some compilers used to have problems with
   functions returning void.

   This routine returns NULL if it was unable to add the callback,
   otherwise it returns an opaque handle that can be used to
   remove or lookup the callback.

   Bool XmuRemoveCloseDisplayHook(Display *dpy, CloseHook handle,
   int ( *func ) (Display *, XPointer), XPointer arg);

   dpy

   specifies the connection to the X server

   handle

   specifies the callback by id, or NULL

   func

   specifies the callback by function

   arg

   specifies the function data to match

   This function deletes a callback that has been added with
   XmuAddCloseDisplayHook. If handle is not NULL, it specifies the
   callback to remove, and the func and arg parameters are
   ignored. If handle is NULL, the first callback found to match
   the specified func and arg will be removed. Returns True if a
   callback was removed, else returns False.

   Bool XmuLookupCloseDisplayHook(Display *dpy, CloseHook handle,
   int ( *func ) (Display *, XPointer), XPointer arg);

   dpy

   specifies the connection to the X server

   handle

   specifies the callback by id, or NULL

   func

   specifies the callback by function

   arg

   specifies the function data to match

   This function determines if a callback is installed. If handle
   is not NULL, it specifies the callback to look for, and the
   func and arg parameters are ignored. If handle is NULL, the
   function will look for any callback for the specified func and
   arg. Returns True if a matching callback exists, else returns
   False.

Display Queue Functions

   To use the functions and types defined in this section, you
   should include the header file <X11/Xmu/DisplayQue.h> and link
   against the libXmu library. DisplayQue.h defines the following
   types:
typedef int (*XmuCloseDisplayQueueProc)(XmuDisplayQueue *queue,
                                        XmuDisplayQueueEntry *entry);

typedef int (*XmuFreeDisplayQueueProc)(XmuDisplayQueue *queue);

typedef struct _XmuDisplayQueueEntry {
        struct _XmuDisplayQueueEntry *prev, *next;
        Display *display;
        CloseHook closehook;
        XPointer data;
} XmuDisplayQueueEntry;

typedef struct _XmuDisplayQueue {
        int nentries;
        XmuDisplayQueueEntry *head, *tail;
        XmuCloseDisplayQueueProc closefunc;
        XmuFreeDisplayQueueProc freefunc;
        XPointer data;
} XmuDisplayQueue;

   XmuDisplayQueue *XmuDQCreate(XmuCloseDisplayQueueProc
   closefunc, XmuFreeDisplayQueueProc freefunc, XPointer data);

   closefunc

   specifies the close function

   freefunc

   specifies the free function

   data

   specifies private data for the functions

   This function creates and returns an empty XmuDisplayQueue
   (which is really just a set of displays, but is called a queue
   for historical reasons). The queue is initially empty, but
   displays can be added using XmuAddDisplay. The data value is
   simply stored in the queue for use by the closefunc and
   freefunc callbacks. Whenever a display in the queue is closed
   using XCloseDisplay, the closefunc (if non-NULL) is called with
   the queue and the display's XmuDisplayQueueEntry as follows:
        (*closefunc)(queue, entry)

   The freefunc (if non-NULL) is called whenever the last display
   in the queue is closed, as follows:
        (*freefunc)(queue)

   The application is responsible for actually freeing the queue,
   by calling XmuDQDestroy.

   XmuDisplayQueueEntry *XmuDQAddDisplay(XmuDisplayQueue *q,
   Display *dpy, XPointer data);

   q

   specifies the queue

   dpy

   specifies the display to add

   data

   specifies private data for the free function

   This function adds the specified display to the queue. If
   successful, the queue entry is returned, otherwise NULL is
   returned. The data value is simply stored in the queue entry
   for use by the queue's freefunc callback. This function does
   not attempt to prevent duplicate entries in the queue; the
   caller should use XmuDQLookupDisplay to determine if a display
   has already been added to a queue.

   XmuDisplayQueueEntry *XmuDQLookupDisplay(XmuDisplayQueue *q,
   Display *dpy);

   q

   specifies the queue

   dpy

   specifies the display to lookup

   This function returns the queue entry for the specified
   display, or NULL if the display is not in the queue.

   XmuDQNDisplays(q);

   This macro returns the number of displays in the specified
   queue.

   Bool XmuDQRemoveDisplay(XmuDisplayQueue *q, Display *dpy);

   q

   specifies the queue

   dpy

   specifies the display to remove

   This function removes the specified display from the specified
   queue. No callbacks are performed. If the display is not found
   in the queue, False is returned, otherwise True is returned.

   Bool XmuDQDestroy(XmuDisplayQueue *q, Bool docallbacks);

   q

   specifies the queue to destroy

   docallbacks

   specifies whether close functions should be called

   This function releases all memory associated with the specified
   queue. If docallbacks is True, then the queue's closefunc
   callback (if non-NULL) is first called for each display in the
   queue, even though XCloseDisplay is not called on the display.

Toolkit Convenience Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/Initer.h> and link against the
   libXmu library.

   void XmuAddInitializer(void ( *func ) (XtAppContext, XPointer),
   XPointer data);

   func

   specifies the procedure to register

   data

   specifies private data for the procedure

   This function registers a procedure, to be invoked the first
   time XmuCallInitializers is called on a given application
   context. The procedure is called with the application context
   and the specified data:
        (*func)(app_con, data)

   void XmuCallInitializers(XtAppContext app_con);

   app_con

   specifies the application context to initialize

   This function calls each of the procedures that have been
   registered with XmuAddInitializer, if this is the first time
   the application context has been passed to XmuCallInitializers.
   Otherwise, this function does nothing.

Standard Colormap Functions

   To use the functions defined in this section, you should
   include the header file <X11/Xmu/StdCmap.h> and link against
   the libXmu library.

   Status XmuAllStandardColormaps(Display *dpy);

   dpy

   specifies the connection to the X server

   To create all of the appropriate standard colormaps for every
   visual of every screen on a given display, use
   XmuAllStandardColormaps.

   This function defines and retains as permanent resources all
   standard colormaps which are meaningful for the visuals of each
   screen of the display. It returns 0 on failure, non-zero on
   success. If the property of any standard colormap is already
   defined, this function will redefine it.

   This function is intended to be used by window managers or a
   special client at the start of a session.

   The standard colormaps of a screen are defined by properties
   associated with the screen's root window. The property names of
   standard colormaps are predefined, and each property name
   except RGB_DEFAULT_MAP may describe at most one colormap.

   The standard colormaps are: RGB_BEST_MAP, RGB_RED_MAP,
   RGB_GREEN_MAP, RGB_BLUE_MAP, RGB_DEFAULT_MAP, and RGB_GRAY_MAP.
   Therefore a screen may have at most 6 standard colormap
   properties defined.

   A standard colormap is associated with a particular visual of
   the screen. A screen may have multiple visuals defined,
   including visuals of the same class at different depths. Note
   that a visual id might be repeated for more than one depth, so
   the visual id and the depth of a visual identify the visual.
   The characteristics of the visual will determine which standard
   colormaps are meaningful under that visual, and will determine
   how the standard colormap is defined. Because a standard
   colormap is associated with a specific visual, there must be a
   method of determining which visuals take precedence in defining
   standard colormaps.

   The method used here is: for the visual of greatest depth,
   define all standard colormaps meaningful to that visual class,
   according to this order of (descending) precedence:
   DirectColor; PseudoColor; TrueColor and GrayScale; and finally
   StaticColor and StaticGray.

   This function allows success, on a per screen basis. For
   example, if a map on screen 1 fails, the maps on screen 0,
   created earlier, will remain. However, none on screen 1 will
   remain. If a map on screen 0 fails, none will remain.

   See XmuVisualStandardColormaps for which standard colormaps are
   meaningful under these classes of visuals.

   Status XmuVisualStandardColormaps(Display *dpy, int screen,
   VisualID visualid, unsigned int depth, Bool replace, Bool
   retain);

   dpy

   specifies the connection to the X server

   screen

   specifies the screen of the display

   visualid

   specifies the visual type

   depth

   specifies the visual depth

   replace

   specifies whether or not to replace

   retain

   specifies whether or not to retain

   To create all of the appropriate standard colormaps for a given
   visual on a given screen, use XmuVisualStandardColormaps.

   This function defines all appropriate standard colormap
   properties for the given visual. If replace is True, any
   previous definition will be removed. If retain is True, new
   properties will be retained for the duration of the server
   session. This function returns 0 on failure, non-zero on
   success. On failure, no new properties will be defined, but old
   ones may have been removed if replace was True.

   Not all standard colormaps are meaningful to all visual
   classes. This routine will check and define the following
   properties for the following classes, provided that the size of
   the colormap is not too small. For DirectColor and PseudoColor:
   RGB_DEFAULT_MAP, RGB_BEST_MAP, RGB_RED_MAP, RGB_GREEN_MAP,
   RGB_BLUE_MAP, and RGB_GRAY_MAP. For TrueColor and StaticColor:
   RGB_BEST_MAP. For GrayScale and StaticGray: RGB_GRAY_MAP.

   Status XmuLookupStandardColormap(Display *dpy, int screen,
   VisualID visualid, unsigned int depth, Atom property, Bool
   replace, Bool retain);

   dpy

   specifies the connection to the X server

   screen

   specifies the screen of the display

   visualid

   specifies the visual type

   depth

   specifies the visual depth

   property

   specifies the standard colormap property

   replace

   specifies whether or not to replace

   retain

   specifies whether or not to retain

   To create a standard colormap if one does not currently exist,
   or replace the currently existing standard colormap, use
   XmuLookupStandardColormap.

   Given a screen, a visual, and a property, this function will
   determine the best allocation for the property under the
   specified visual, and determine the whether to create a new
   colormap or to use the default colormap of the screen.

   If replace is True, any previous definition of the property
   will be replaced. If retain is True, the property and the
   colormap will be made permanent for the duration of the server
   session. However, pre-existing property definitions which are
   not replaced cannot be made permanent by a call to this
   function; a request to retain resources pertains to newly
   created resources.

   This function returns 0 on failure, non-zero on success. A
   request to create a standard colormap upon a visual which
   cannot support such a map is considered a failure. An example
   of this would be requesting any standard colormap property on a
   monochrome visual, or, requesting an RGB_BEST_MAP on a display
   whose colormap size is 16.

   Status XmuGetColormapAllocation(XVisualInfo *vinfo, Atom
   property, unsigned long *red_max, unsigned long *green_max,
   unsigned long *blue_max);

   vinfo

   specifies visual information for a chosen visual

   property

   specifies one of the standard colormap property names

   red_max

   returns maximum red value

   green_max

   returns maximum green value

   blue_max

   returns maximum blue value

   To determine the best allocation of reds, greens, and blues in
   a standard colormap, use XmuGetColormapAllocation.

   XmuGetColormapAllocation returns 0 on failure, non-zero on
   success. It is assumed that the visual is appropriate for the
   colormap property.

   XStandardColormap *XmuStandardColormap(Display *dpy, int
   screen, VisualID visualid, unsigned int depth, Atom property,
   Colormap cmap, unsigned long red_max, unsigned long green_max,
   unsigned long blue_max);

   dpy

   specifies the connection to the X server

   screen

   specifies the screen of the display

   visualid

   specifies the visual type

   depth

   specifies the visual depth

   property

   specifies the standard colormap property

   cmap

   specifies the colormap ID, or None

   red_max

   specifies the red allocation

   green_max

   specifies the green allocation

   blue_max

   specifies the blue allocation

   To create any one standard colormap, use XmuStandardColormap.

   This function creates a standard colormap for the given screen,
   visualid, and visual depth, with the given red, green, and blue
   maximum values, with the given standard property name. Upon
   success, it returns a pointer to an XStandardColormap structure
   which describes the newly created colormap. Upon failure, it
   returns NULL. If cmap is the default colormap of the screen,
   the standard colormap will be defined on the default colormap;
   otherwise a new colormap is created.

   Resources created by this function are not made permanent; that
   is the caller's responsibility.

   Status XmuCreateColormap(Display *dpy, XStandardColormap
   *colormap);

   dpy

   specifies the connection under which the map is created

   colormap

   specifies the map to be created

   To create any one colormap which is described by an
   XStandardColormap structure, use XmuCreateColormap.

   This function returns 0 on failure, and non-zero on success.
   The base_pixel of the colormap is set on success. Resources
   created by this function are not made permanent. No argument
   error checking is provided; use at your own risk.

   All colormaps are created with read-only allocations, with the
   exception of read-only allocations of colors which fail to
   return the expected pixel value, and these are individually
   defined as read/write allocations. This is done so that all the
   cells defined in the colormap are contiguous, for use in image
   processing. This typically happens with White and Black in the
   default map.

   Colormaps of static visuals are considered to be successfully
   created if the map of the static visual matches the definition
   given in the standard colormap structure.

   void XmuDeleteStandardColormap(Display *dpy, Screen *screen,
   Atom property);

   dpy

   specifies the connection to the X server

   screen

   specifies the screen of the display

   property

   specifies the standard colormap property

   To remove any standard colormap property, use
   XmuDeleteStandardColormap. This function will remove the
   specified property from the specified screen, releasing any
   resources used by the colormap(s) of the property, if possible.

Widget Description Functions

   The functions defined in this section are for building a
   description of the structure of and resources associated with a
   hierarchy of widget classes. This package is typically used by
   applications that wish to manipulate the widget set itself.

   The definitions needed to use these interfaces are in the
   header file <X11/Xmu/WidgetNode.h> . To call these functions,
   you need to link against the libXmu library. The following
   function must be called before any of the others described
   below:

   void XmuWnInitializeNodes(XmuWidgetNode *node_array, int
   num_nodes);

   node_array

   specifies a list of widget classes, in alphabetical order

   num_nodes

   specifies the number of widget classes in the node array

   To determine the resources provided by a widget class or
   classes, use

   void XmuWnFetchResources(XmuWidgetNode *node, Widget toplevel,
   XmuWidgetNode *top_node);

   node

   specifies the widget class for which resources should be
   obtained.

   toplevel

   specifies the widget that should be used for creating an
   instance of node from which resources are extracted. This is
   typically the value returned by XtAppInitialize.

   top_node

   specifies the ancestor of node that should be treated as the
   root of the widget inheritance tree (used in determining which
   ancestor contributed which resources).

   Each widget class inherits the resources of its parent. To
   count the number of resources contributed by a particular
   widget class, use:

   int XmuWnCountOwnedResources(XmuWidgetNode *node, XmuWidgetNode
   *owner_node, Bool constraints);

   node

   specifies the widget class whose resources are being examined.

   owner_node

   specifies the widget class of the ancestor of node whose
   contributions are being counted.

   constraints

   specifies whether or not to count constraint resources or
   normal resources.

   This routine returns the number of resources contributed (or
   "owned") by the specified widget class.

   XmuWidgetNode *XmuWnNameToNode(XmuWidgetNode *node_list, int
   num_nodes, char *name);

   node_list

   specifies a list of widget nodes

   num_nodes

   specifies the number of nodes in the list

   name

   specifies the name of the widget class in the node list to
   search for

   This function returns the WidgetNode in the list that matches
   the given widget name or widget class name. If no match is
   found, it returns NULL.

Participation in the Editres Protocol

   To participate in the editres protocol, applications which are
   not based on the Athena widget set should include the header
   file <X11/Xmu/Editres.h> and link against the libXmu library.

   To participate in the editres protocol, Xt applications which
   do not rely on the Athena widget set should register the
   editres protocol handler on each shell widget in the
   application, specifying an event mask of 0, nonmaskable events,
   and client data as NULL:
XtAddEventHandler(shell, (EventMask) 0, True, _XEditResCheckMessages, NU
LL);

Index

   , Atom Functions, Atom Functions, Atom Functions, Atom
          Functions, Atom Functions, Error Handler Functions

A

   Atom, Atom Functions

B

   backing-store, Type Converter Functions
   bitmapFilePath, Graphics Functions

C

   colormaps

        standard, Standard Colormap Functions

   Cursor, Type Converter Functions, Type Converter Functions

E

   editres, Participation in the Editres Protocol

P

   pkg-config, Introduction

S

   Shape extension, Type Converter Functions

W

   window manager icons, Type Converter Functions
   WM_STATE, Window Utility Functions

X

   X11/Xmu/Atoms.h, Atom Functions
   X11/Xmu/CharSet.h, Character Set Functions
   X11/Xmu/CloseHook.h, CloseDisplay Hook Functions
   X11/Xmu/Converters.h, Type Converter Functions
   X11/Xmu/CurUtil.h, Cursor Utility Functions
   X11/Xmu/DisplayQue.h, Display Queue Functions
   X11/Xmu/Drawing.h, Graphics Functions
   X11/Xmu/Editres.h, Participation in the Editres Protocol
   X11/Xmu/Error.h, Error Handler Functions
   X11/Xmu/Initer.h, Toolkit Convenience Functions
   X11/Xmu/Lookup.h, Keyboard Event Translation Functions
   X11/Xmu/StdCmap.h, Standard Colormap Functions
   X11/Xmu/StdSel.h, Selection Functions
   X11/Xmu/SysUtil.h, System Utility Functions
   X11/Xmu/WidgetNode.h, Widget Description Functions
   X11/Xmu/WinUtil.h, Window Utility Functions
   X11/Xmu/Xct.h, Compound Text Functions
   XctCreate, Compound Text Functions
   XctData, Compound Text Functions
   XctNextItem, Compound Text Functions
   XctReset, Compound Text Functions
   XGetWMNormalHints, Window Utility Functions
   XmuAddCloseDisplayHook, CloseDisplay Hook Functions
   XmuAddInitializer, Toolkit Convenience Functions
   XmuAllStandardColormaps, Standard Colormap Functions
   XmuCallInitializers, Toolkit Convenience Functions
   XmuClientWindow, Window Utility Functions
   XmuCompareISOLatin1, Character Set Functions
   XmuConvertStandardSelection, Selection Functions
   XmuCopyISOLatin1Lowered, Character Set Functions
   XmuCopyISOLatin1Uppered, Character Set Functions
   XmuCreateColormap, Standard Colormap Functions
   XmuCreatePixmapFromBitmap, Graphics Functions
   XmuCreateStippledPixmap, Graphics Functions
   XmuCursorNameToIndex, Cursor Utility Functions
   XmuCvtFunctionToCallback, Type Converter Functions
   XmuCvtStringToBackingStore, Type Converter Functions
   XmuCvtStringToBitmap, Type Converter Functions
   XmuCvtStringToColorCursor, Type Converter Functions
   XmuCvtStringToCursor, Type Converter Functions
   XmuCvtStringToGravity, Type Converter Functions
   XmuCvtStringToJustify, Type Converter Functions
   XmuCvtStringToLong, Type Converter Functions
   XmuCvtStringToOrientation, Type Converter Functions
   XmuCvtStringToShapeStyle, Type Converter Functions
   XmuCvtStringToWidget, Type Converter Functions
   XmuDeleteStandardColormap, Standard Colormap Functions
   XmuDisplayQueue, Display Queue Functions
   XmuDQAddDisplay, Display Queue Functions
   XmuDQCreate, Display Queue Functions
   XmuDQDestroy, Display Queue Functions
   XmuDQLookupDisplay, Display Queue Functions
   XmuDQNDisplays, Display Queue Functions
   XmuDQRemoveDisplay, Display Queue Functions
   XmuDrawLogo, Graphics Functions
   XmuDrawRoundedRectangle, Graphics Functions
   XmuFillRoundedRectangle, Graphics Functions
   XmuGetColormapAllocation, Standard Colormap Functions
   XmuGetHostname, System Utility Functions
   XmuLocateBitmapFile, Graphics Functions
   XmuLookupAPL, Keyboard Event Translation Functions
   XmuLookupArabic, Keyboard Event Translation Functions
   XmuLookupCloseDisplayHook, CloseDisplay Hook Functions
   XmuLookupCyrillic, Keyboard Event Translation Functions
   XmuLookupGreek, Keyboard Event Translation Functions
   XmuLookupHebrew, Keyboard Event Translation Functions
   XmuLookupJISX0201, Keyboard Event Translation Functions
   XmuLookupKana, Keyboard Event Translation Functions
   XmuLookupLatin1, Keyboard Event Translation Functions
   XmuLookupLatin2, Keyboard Event Translation Functions
   XmuLookupLatin3, Keyboard Event Translation Functions
   XmuLookupLatin4, Keyboard Event Translation Functions
   XmuLookupStandardColormap, Standard Colormap Functions
   XmuNCopyISOLatin1Lowered, Character Set Functions
   XmuNCopyISOLatin1Uppered, Character Set Functions
   XmuNewCvtStringToWidget, Type Converter Functions
   XmuReadBitmapData, Graphics Functions
   XmuReadBitmapDataFromFile, Graphics Functions
   XmuReleaseStippledPixmap, Graphics Functions
   XmuRemoveCloseDisplayHook, CloseDisplay Hook Functions
   XmuReshapeWidget, Type Converter Functions
   XmuScreenOfWindow, Window Utility Functions
   XmuSimpleErrorHandler, Error Handler Functions
   XmuSnprintf, System Utility Functions
   XmuStandardColormap, Standard Colormap Functions
   XmuUpdateMapHints, Window Utility Functions
   XmuVisualStandardColormaps, Standard Colormap Functions
   XmuWnNameToNode, Widget Description Functions
   XSetWMNormalHints, Window Utility Functions
   XtGravity, Type Converter Functions
   XtJustify, Type Converter Functions
   XtOrientation, Type Converter Functions
