XmDestroyPixmap(3X)XmDestroyPixmap(3X)NAME
XmDestroyPixmap - A pixmap caching function that removes a pixmap from the pixmap cache
SYNOPSIS
#include <Xm/Xm.h>
Boolean XmDestroyPixmap (screen, pixmap)
Screen * screen;
Pixmap pixmap;
DESCRIPTION
XmDestroyPixmap removes pixmaps that are no longer used. Pixmaps are completely freed only when there is no further reference to them.
Specifies the display screen for which the pixmap was requested Specifies the pixmap to be destroyed
RETURN VALUE
Returns True when successful; returns False if there is no matching screen and pixmap in the pixmap cache.
SEE ALSO XmInstallImage(3X), XmUninstallImage(3X), XmGetPixmap(3X)XmDestroyPixmap(3X)
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XmGetPixmapByDepth(3X)XmGetPixmapByDepth(3X)NAME
XmGetPixmapByDepth - A pixmap caching function that generates a pixmap, stores it in a pixmap cache, and returns the pixmap
SYNOPSIS
#include <Xm/Xm.h>
Pixmap XmGetPixmapByDepth (screen, image_name, foreground, background, depth)
Screen *screen;
char *image_name;
Pixel foreground;
Pixel background;
int depth;
DESCRIPTION
XmGetPixmapByDepth uses the parameter data to perform a lookup in the pixmap cache to see if a pixmap has already been generated that
matches the data. If one is found, a reference count is incremented and the pixmap is returned. Applications should use XmDestroyPixmap
when the pixmap is no longer needed.
If a matching pixmap is not found, image_name is used to perform a lookup in the image cache. If an image is found, it is used to generate
the pixmap, which is then cached and returned.
If an image is not found, image_name is used as a filename, and a search is made for an X10 or X11 bitmap file. If it is found, the file
is read, converted into an image, and cached in the image cache. The image is then used to generate a pixmap, which is cached and
returned.
If image_name has a leading slash (/), it specifies a full pathname, and XmGetPixmapByDepth opens the file as specified. Otherwise,
image_name specifies a filename. In this case XmGetPixmapByDepth looks for the file along a search path specified by the XBMLANGPATH envi-
ronment variable or by a default search path, which varies depending on whether or not the XAPPLRESDIR environment variable is set.
The XBMLANGPATH environment variable specifies a search path for X bitmap files. It can contain the substitution field %B, where the
image_name argument to XmGetPixmapByDepth is substituted for %B. It can also contain the substitution fields accepted by XtResolvePathname.
The substitution field %T is always mapped to bitmaps, and %S is always mapped to NULL.
If XBMLANGPATH is not set, but the environment variable XAPPLRESDIR is set, the following pathnames are searched:
%B
$XAPPLRESDIR/%L/bitmaps/%N/%B
$XAPPLRESDIR/%l/bitmaps/%N/%B
$XAPPLRESDIR/bitmaps/%N/%B
$XAPPLRESDIR/%L/bitmaps/%B
$XAPPLRESDIR/%l/bitmaps/%B
$XAPPLRESDIR/bitmaps/%B
$HOME/bitmaps/%B
$HOME/%B
/usr/lib/X11/%L/bitmaps/%N/%B
/usr/lib/X11/%l/bitmaps/%N/%B
/usr/lib/X11/bitmaps/%N/%B
/usr/lib/X11/%L/bitmaps/%B
/usr/lib/X11/%l/bitmaps/%B
/usr/lib/X11/bitmaps/%B
/usr/include/X11/bitmaps/%B
If neither XBMLANGPATH nor XAPPLRESDIR is set, the following pathnames are searched:
%B
$HOME/%L/bitmaps/%N/%B
$HOME/%l/bitmaps/%N/%B
$HOME/bitmaps/%N/%B
$HOME/%L/bitmaps/%B
$HOME/%l/bitmaps/%B
$HOME/bitmaps/%B
$HOME/%B
/usr/lib/X11/%L/bitmaps/%N/%B
/usr/lib/X11/%l/bitmaps/%N/%B
/usr/lib/X11/bitmaps/%N/%B
/usr/lib/X11/%L/bitmaps/%B
/usr/lib/X11/%l/bitmaps/%B
/usr/lib/X11/bitmaps/%B
/usr/include/X11/bitmaps/%B
These paths are defaults that vendors may change. For example, a vendor may use different directories for /usr/lib/X11 and
/usr/include/X11.
The following substitutions are used in these paths: The image name, from the image_name argument The class name of the application The
display's language string The language component of the display's language string
Parameter descriptions are listed below: Specifies the display screen on which the pixmap is to be drawn Specifies the name of the image to
be used to generate the pixmap Combines the image with the foreground color to create the pixmap if the image referenced is a bit-per-pixel
image Combines the image with the background color to create the pixmap if the image referenced is a bit-per-pixel image Specifies the
depth of the pixmap
RETURN VALUE
Returns a pixmap when successful; returns XmUNSPECIFIED_PIXMAP if the image corresponding to image_name cannot be found.
SEE ALSO XmDestroyPixmap(3X), XmInstallImage(3X), XmUninstallImage(3X)XmGetPixmapByDepth(3X)