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Table of Contents
XInstallColormap, XUninstallColormap,
XListInstalledColormaps - control colormaps
- int XInstallColormap(Display
*display, Colormap colormap);
- int XUninstallColormap(Display *display,
Colormap
- colormap);
- Colormap *XListInstalledColormaps(Display *display,
Window
- w, int *num_return);
- 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.
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.
- 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.
XChangeWindowAttributes(3X11)
,
XCreateColormap(3X11)
, XCreateWindow(3X11)
, XFree(3X11)
Xlib - C Language X Interface
Table of Contents
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