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PBT_APMSUSPEND Overview  Group

The PBT_APMSUSPEND is sent immediately before the computer is suspended. This message is typically sent when all applications and installable drivers have returned TRUE to a previous PBT_APMQUERYSUSPEND message. A window receives this message through the WM_POWERBROADCAST message.

dwData = (DWORD) lParam;


Reserved; must be 0.

Return Values

No return value.


An application should process this message by completing all tasks necessary to save data. This message may also be sent, without a prior PBT_APMQUERYSUSPEND message, if an application or device driver uses the SetSystemPowerState function to force suspension.

See Also


file: /Techref/os/win/api/win32/mess/src/msg14_14.htm, 1KB, , updated: 2000/4/7 12:20, local time: 2022/8/17 20:43,

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