xlib.py 文件源码

def _error_handler(display, event):
    # By default, all errors are silently ignored: this has a better chance
    # of working than the default behaviour of quitting ;-)
    #
    # We've actually never seen an error that was our fault; they're always
    # driver bugs (and so the reports are useless).  Nevertheless, set
    # environment variable PYGLET_DEBUG_X11 to 1 to get dumps of the error
    # and a traceback (execution will continue).
    import pyglet
    if pyglet.options['debug_x11']:
        event = event.contents
        buf = c_buffer(1024)
        xlib.XGetErrorText(display, event.error_code, buf, len(buf))
        print('X11 error:', buf.value)
        print('   serial:', event.serial)
        print('  request:', event.request_code)
        print('    minor:', event.minor_code)
        print(' resource:', event.resourceid)

        import traceback
        print('Python stack trace (innermost last):')
        traceback.print_stack()
    return 0