pygame DirectDraw2 E版

Question

我正在使用pygame窗口通过pylink命令执行eylink校准。初始化显示时会触发错误(display.set\模式)地址：

pygame.error: DirectDraw2 : : CreateSurface: Undefined error.

我已经使用同一个代码好几年了，但没有成功触发错误，它偶尔发生，回溯似乎很模糊。我在下面粘贴了执行校准的函数。你知道吗

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    if key == ['k']: 
        win.clearBuffer()
        win.flip()
        return win, None

    elif key == ['r']: 
        win.close()
        display.init()
        display.set_mode(resolution, FULLSCREEN |DOUBLEBUF,32)
        pylink.openGraphics()

        print 'This is a monocular calibration routine. Please select the appropriate eye.'

        # set calibration colors (target, background)
        pylink.setCalibrationColors((255, 255, 255), (0, 0, 0))
        # set calibration target size (diameter, hole)
        pylink.setTargetSize(int(0.25 * degToPix), int(0.05 * degToPix))
        # set calibration sounds
        pylink.setCalibrationSounds('', '', '')
        pylink.setDriftCorrectSounds('', 'off', 'off')

        # custom calibration routine: randomize and repeat first target must be turned off inside EYELINK
        #        5    1    6
        #          9   10
        #        3    0    4
        #          11   12
        #        7    2    8

        EYELINK.sendCommand('calibration_type = HV9')
        EYELINK.sendCommand('generate_default_targets = NO')      
        EYELINK.sendCommand('calibration_targets = %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d' % eyeCoordsR)    
        EYELINK.sendCommand('validation_targets = %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d' % eyeCoordsR)
        EYELINK.doTrackerSetup()
        pylink.closeGraphics()
        display.quit()

        win = ps.visual.Window(resolution, units = 'pix', fullscr = True, screen = 1, color = (0, 0, 0), colorSpace = 'rgb255', useFBO = False)
        return win, None

    elif key == ['l']: 
        win.close()
        display.init()
        display.set_mode(resolution, FULLSCREEN |DOUBLEBUF,32)
        pylink.openGraphics()

        print 'This is a monocular calibration routine. Please select the appropriate eye.'

        # set calibration colors (target, background)
        pylink.setCalibrationColors((255, 255, 255), (0, 0, 0))
        # set calibration target size (diameter, hole)
        pylink.setTargetSize(int(0.25 * degToPix), int(0.05 * degToPix))
        # set calibration sounds
        pylink.setCalibrationSounds('', '', '')
        pylink.setDriftCorrectSounds('', 'off', 'off')

        # custom calibration routine: randomize and repeat first target must be turned off inside EYELINK
        #        5    1    6
        #          9   10
        #        3    0    4
        #          11   12
        #        7    2    8

        EYELINK.sendCommand('calibration_type = HV9')
        EYELINK.sendCommand('generate_default_targets = NO')      
        EYELINK.sendCommand('calibration_targets = %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d' % eyeCoordsL)    
        EYELINK.sendCommand('validation_targets = %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d, %d' % eyeCoordsL)            
        EYELINK.doTrackerSetup()
        pylink.closeGraphics()
        display.quit()

        win = ps.visual.Window(resolution, units = 'pix', fullscr = True, screen = 1, color = (0, 0, 0), colorSpace = 'rgb255', useFBO = False)
        return win, None

    elif key == ['e']: 
        print '\t Exit? YES (Y) or NO (N)'
        key = ps.event.waitKeys(keyList = ['y', 'n']) 
        if key == ['y']: 
            return win, True
        elif key == ['n']:
            return win, False