error_trap_pop
Description:
Pops the error trap pushed by error_trap_push.
Will XSync
if necessary and will always block until the error is known to have occurred or not occurred, so the error code can be
returned.
If you don’t need to use the return value, error_trap_pop_ignored would be more efficient.
Parameters:
this |
the display |
Returns:
X error code or 0 on success |