XmGetPixmap(3X)XmGetPixmap(3X)NAMEXmGetPixmap - A pixmap caching function that generates a pixmap, stores
it in a pixmap cache, and returns the pixmap
SYNOPSIS
#include <Xm/Xm.h>
Pixmap XmGetPixmap (screen, image_name, foreground, background)
Screen *screen;
char *image_name;
Pixel foreground;
Pixel background;
DESCRIPTIONXmGetPixmap 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 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, the 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 XmGetPixmap opens the file as specified. Otherwise, image_name
specifies a filename. In this case XmGetPixmap looks for the file along
a search path specified by the XBMLANGPATH environment variable or by a
default search path, which varies depending on whether or not the XAP‐
PLRESDIR environment variable is set.
The XBMLANGPATH environment variable specifies a search path for X bit‐
map files. It can contain the substitution field %B, where the
image_name argument to XmGetPixmap is substituted for %B. It can also
contain the substitution fields accepted by XtResolvePathname. The sub‐
stitution 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. The depth of the pixmap is the
default depth for this screen. 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
RETURN VALUE
Returns a pixmap when successful; returns XmUNSPECIFIED_PIXMAP if the
image corresponding to the image_name cannot be found.
SEE ALSOXmDestroyPixmap(3X), XmGetPixmapByDepth(3X), XmInstallImage(3X),
XmUninstallImage(3X)XmGetPixmap(3X)
