X Version 11 (1 September 1988) XInstallColormap(XS)
NAME
XInstallColormap, XUninstallColormap,
XListInstalledColormaps - control colormaps
SYNTAX
XInstallColormap(display, colormap)
Display *display;
Colormap colormap;
XUninstallColormap(display, colormap)
Display *display;
Colormap colormap;
Colormap *XListInstalledColormaps(display, w, num_return)
Display *display;
Window w;
int *num_return;
ARGUMENTS
colormap Specifies the colormap.
display Specifies the connection to the X server.
num_return
Returns the number of currently installed
colormaps.
w Specifies the window that determines the screen.
DESCRIPTION
The XInstallColormap function installs the specified
colormap for its associated screen. All windows associated
with this colormap immediately display with true colors.
You associated the windows with this colormap when you
created them by calling XCreateWindow, XCreateSimpleWindow,
XChangeWindowAttributes, or XSetWindowColormap.
If the specified colormap is not already an installed
colormap, the X server generates a ColormapNotify event on
each window that has that colormap. In addition, for every
other colormap that is installed as a result of a call to
XInstallColormap, the X server generates a ColormapNotify
event on each window that has that colormap.
XInstallColormap can generate a BadColor error.
The XUninstallColormap function removes the specified
colormap from the required list for its screen. As a
result, the specified colormap might be uninstalled, and the
X server might implicitly install or uninstall additional
colormaps. Which colormaps get installed or uninstalled is
server-dependent except that the required list must remain
installed.
If the specified colormap becomes uninstalled, the X server
generates a ColormapNotify event on each window that has
that colormap. In addition, for every other colormap that
is installed or uninstalled as a result of a call to
XUninstallColormap, the X server generates a ColormapNotify
event on each window that has that colormap.
XUninstallColormap can generate a BadColor error.
The XListInstalledColormaps function returns a list of the
currently installed colormaps for the screen of the
specified window. The order of the colormaps in the list is
not significant and is no explicit indication of the
required list. When the allocated list is no longer needed,
free it by using XFree.
XListInstalledColormaps can generate a BadWindow error.
DIAGNOSTICS
BadColor A value for a Colormap argument does not name a
defined Colormap.
BadWindow A value for a Window argument does not name a
defined Window.
SEE ALSO
Xlib - C Language X Interface
(printed 2/12/90) (1 September 1988) XInstallColormap(XS)