1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
# Copyright (c) 1992 The Regents of the University of California.
# Copyright (c) 1994-1996 Sun Microsystems, Inc.
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
#
=head1 NAME
Tk_SetWindowVisual - change visual characteristics of window
=for category C Programming
=head1 SYNOPSIS
B<#include E<lt>tk.hE<gt>>
int
B<Tk_SetWindowVisual>(I<tkwin, visual, depth, colormap>)
=head1 ARGUMENTS
=over 4
=item Tk_Window tkwin (in)
Token for window.
=item Visual *visual (in)
New visual type to use for I<tkwin>.
=item "int" depth (in)
Number of bits per pixel desired for I<tkwin>.
=item Colormap colormap (in)
New colormap for I<tkwin>, which must be compatible with
I<visual> and I<depth>.
=back
=head1 DESCRIPTION
When Tk creates a new window it assigns it the default visual
characteristics (visual, depth, and colormap) for its screen.
B<Tk_SetWindowVisual> may be called to change them.
B<Tk_SetWindowVisual> must be called before the window has
actually been created in X (e.g. before B<Tk_MapWindow> or
B<Tk_MakeWindowExist> has been invoked for the window).
The safest thing is to call B<Tk_SetWindowVisual> immediately
after calling B<Tk_CreateWindow>.
If I<tkwin> has already been created before B<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: B<Tk_SetWindowVisual> should not be called if you just want
to change a window's colormap without changing its visual or depth;
call B<Tk_SetWindowColormap> instead.
=head1 KEYWORDS
colormap, depth, visual
|
