This looks like an X11 bug to me... this code creates a visual of depth
32, uses it to create a window, and blows up under the XMapRaised with
BadMatch in X_CreateWindow. xdpyinfo shows that the selected visual is
correctly a 32 bit TrueColor visual. If I request a 24 bit visual, its OK.
int
main(int argc, char *argv[])
{
Display *dpy = XOpenDisplay(":0.0");
XVisualInfo *vinf, tmp;
long mask; int n;
mask = VisualDepthMask | VisualClassMask;
tmp.depth = 32;
tmp.c_class = 4;
vinf = XGetVisualInfo(dpy, mask, &tmp, &n);
Window win = XCreateWindow(dpy, DefaultRootWindow(dpy), 0, 0, 256,
256, 0,
vinf->depth, InputOutput, vinf->visual, 0, NULL);
if (! win)
{
std::cerr << "unable to create window\n";
exit(1);
}
XMapRaised(dpy, win);
}
--
Gregory D. Abram, Ph.D.
Texas Advanced Computing Center
JJ Pickle Research Campus - ROC 1.101 Bldg 196
10100 Burnet Road
Austin, TX 78758-4497
g...@tacc.utexas.edu
(512) 471-8196
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