qt: flush: BitBlt failed

"BitBlt" is a graphics accelerator function. The message is a warning, not an error. It tells that graphics acceleration is not available, for example when the screensaver is active or you are working via a remote desktop connection. “BitBlt”是一个图形加速器的功能。消息是一个警告，不是一个错误。它讲述的是图形加速是不可用的，因为 当屏幕保护程序是有效的或你的工作是通过远程桌面连接