DragonFly On-Line Manual Pages
Tk_SetWindowVisual(3) Tk Library Procedures Tk_SetWindowVisual(3)
Tk_SetWindowVisual - change visual characteristics of window
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
Colormap colormap (in) New colormap for tkwin, which must
be compatible with visual and
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
Note: Tk_SetWindowVisual should not be called if you just want to
change a window's colormap without changing its visual or depth; call
colormap, depth, visual
Tk 4.0 Tk_SetWindowVisual(3)