如何判断盖子是合上的还是打开的。
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EVT_FLIP 判断事件参数
wParam = TRUE if open, FALSE if closed
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EVT_FLIP: wParam = TRUE if open, FALSE if closed
This type of event is sent when a device's LCD is blocked
when a clamtype device is closed and reexposed when opened
dwParam = AEEFlipInfo (AEEDeviceNotifier.h)