Tk_SetWindowVisual — change visual characteristics of window
#include <tk.h>
int
Tk_SetWindowVisual(tkwin, visual, depth,
colormap)
- Tk_Window tkwin
(in)
- Token for window.
- Visual *visual (in)
- New visual type to use for tkwin.
- int depth (in)
- Number of bits per pixel desired for tkwin.
- Colormap colormap (in)
- New colormap for tkwin, which must be compatible with
visual and depth.
When Tk creates a new window it assigns it the default visual
characteristics (visual, depth, and colormap) for its screen.
Tk_SetWindowVisual may be called to change them.
Tk_SetWindowVisual must be called before the window has
actually been created in X (e.g. before Tk_MapWindow or Tk_MakeWindowExist has been
invoked for the window). The safest thing is to call
Tk_SetWindowVisual immediately after calling Tk_CreateWindow. If tkwin
has already been created before Tk_SetWindowVisual is called
then it returns 0 and does not make any changes; otherwise it
returns 1 to signify that the operation completed successfully.
Note that Tk_SetWindowVisual should not be called if you
just want to change a window's colormap without changing its visual
or depth; call Tk_SetWindowColormap
instead.
colormap, depth, visual
Copyright © 1992 The Regents of the University of
California.
Copyright © 1994-1996 Sun Microsystems, Inc.