XInstallColormap(3X11) XLIB FUNCTIONS XInstallColormap(3X11)NAME
XInstallColormap, XUninstallColormap, XListInstalledCol-
ormaps - 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 col-
ormaps.
w Specifies the window that determines the screen.
DESCRIPTION
The XInstallColormap function installs the specified col-
ormap 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 col-
ormap, 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 Col-
ormapNotify event on each window that has that colormap.
XInstallColormap can generate a BadColor error.
The XUninstallColormap function removes the specified col-
ormap 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.
X Version 11 Release 6.4 1
XInstallColormap(3X11) XLIB FUNCTIONS XInstallColormap(3X11)
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 col-
ormap that is installed or uninstalled as a result of a
call to XUninstallColormap, the X server generates a Col-
ormapNotify 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 speci-
fied 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 ALSOXChangeWindowAtrributes(3X11), XCreateColormap(3X11),
XCreateWindow(3X11), XFree(3X11)
Xlib - C Language X Interface
X Version 11 Release 6.4 2