Need help debugging Gdk-ERROR

["Eric M. Monsler" <emonsler beamreachnetworks com>]

All,

My application, using gtk+ and gtkextra, eventually crashes with the
message:

Gdk-ERROR **: BadDrawable (invalid Pixmap or Window parameter)
  serial 2893853 error_code 9 request_code 64 minor_code 0


I think that the serial value changes, but I believe that the error_code
and request code are always the same (they are at least usually the
same).

I tried running my app under xxgdb, with --sync on and a breakpoint in
the gdk function that I belive reports that error.  But, with '--sync'
specified, my program doesn't seem to crash!

So, two questions:

1) I believe that "error code 9 request_code 64" are from the reporting
by X or Xlib.  If this is correct, is there an online reference that I
can consult to find out what those mean?

2) Any other suggestions on how to track down this problem?


TIA,


Eric M. Monsler