PBT_APMQUERYSUSPEND

The PBT_APMQUERYSUSPEND message is sent to request permission to suspend the computer. An application that grants permission should carry out preparations for the suspension before returning. A window receives this message through the WM_POWERBROADCAST message.

Flags = (DWORD) lParam;

Parameters

Flags

Action flags. If bit 0 is 1, the application can prompt the user for directions on how to prepare for the suspension; otherwise, the application must prepare without user interaction. All other bit values are reserved.

Return Values

Return TRUE to grant the request to suspend. To deny the request, return BROADCAST_QUERY_DENY.

Remarks

An application should process this message by first determining whether permission to suspend can be granted. It must not grant permission if doing so would cause a loss of data. The application can prompt the user for directions on how to prepare for suspension only if bit 0 in the Flags parameter is set.

See Also

WM_POWERBROADCAST

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