glynn at gclements.plus.com
Wed Sep 7 12:11:26 PDT 2005
Peter J. Bismuti wrote:
> Day 2, running into problems creating a window using XCreateWindow. It is
> failing and I haven't been able to pinpoint the cause. I'm setting _Xdebug =
> 1 in the debugger and printing the stack tracke within _XError, but it does
> give consistent results. Sometimes it crashes within XCreateWindow, other
> times it crashes within XAllocColorCells. It is said that debuggers are
> unreliable, how can I be certain where the problem is? Is the X protocol
> error message always correct?
The error message is just a textual representation of the response
which the X server sends back. It doesn't depend upon the client's
> It says that it is a "BadMatch", an error the
> docs say cannot occur in XAllocColorCells.
The error message which you posted refers to XCreateWindow, not
> Once I'm certain that it the
> problem is in XCreateWindow, what next? Trial-and-error doesn't seem to be
> working. Any help would be appreciated.
What arguments are you passing to XCreateWindow? Do the visual and
depth match one of the supported combinations as reported by xdpyinfo?
Glynn Clements <glynn at gclements.plus.com>
More information about the xorg