Later on, you deselect the pen object from the device context and destroy the object.
稍后，你从关联设备取消画笔对象并销毁该对象。
You should always restore the object that you replaced in the device context.
你只要在设备环境中替换了某一对象，你都应该恢复它。
You should always restore the object that you replaced in the device context.
你只要在设备环境中替换了某一对象，你都应该恢复它。
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