Tk_SetWindowVisual(3) Tk Library Procedures 4.0
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
int depth (in) Number of bits per
pixel desired for
Colormap colormap (in) New colormap for tkwin,
which must be compati-
ble 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
doesn't make any changes; otherwise it returns 1 to signify
that the operation completed successfully.
Note: 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
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