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PBT_APMOEMEVENT event

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PBT_APMOEMEVENT is available for use in the operating systems specified in the Requirements section. Support for this event was removed in Windows Vista.]

Notifies applications that the APM BIOS has signaled an APM OEM event.

A window receives this event through the WM_POWERBROADCAST message. The wParam and lParam parameters are set as described following.

LRESULT 
CALLBACK 
WindowProc( HWND   hwnd,    // handle to window
            UINT   uMsg,    // WM_POWERBROADCAST
            WPARAM wParam,  // PBT_APMOEMEVENT
            LPARAM lParam); // OEM event code

Parameters

hwnd

A handle to window.

uMsg

Value Meaning
WM_POWERBROADCAST
536 (0x218)
 Message identifier.

wParam

Value Meaning
PBT_APMOEMEVENT
11 (0xB)
 Event identifier.

lParam

The OEM-defined event code that was signaled by the system's APM BIOS. OEM event codes are in the range 0200h - 02FFh.

Return value

No return value.

Remarks

Because not all APM BIOS implementations provide OEM event notifications, this event may never be broadcast on some computers.

Requirements

Requirement Value
Minimum supported client
 Windows XP [desktop apps only]
Minimum supported server
 Windows Server 2003 [desktop apps only]
End of client support
 Windows XP
End of server support
 Windows Server 2003
Header
WinUser.h (include Windows.h)

See also