PE_BUFFERWARNING

Generated by the pen driver component of the system when the input queue is approximately half full. When an application receives PE_BUFFERWARNING, it should immediately call GetPenInput1AOBY7 to drain the input queue. Submessage of WM_PENEVENT.

Parameters

wParam

PE_BUFFERWARNING.

lParam

Extra information encapsulating a reference to the event and the HPCM that generated it. Applications can use the EventRefFromWpLp and HpcmFromWpLp macros to retrieve these values.

Comments

If an application receives this message, it has fallen behind in processing the input. The buffer is in danger of overflowing. The application should repeatedly call GetPenInput1AOBY7 to gather the unprocessed pen input.

See Also

GetPenInput