Terminates collection of pen input.
int StopPenInput( HPCM hpcm, UINT idEvent, int nTermReason )
Handle to the collection of the pen data gathered during the input session. HPCM
stands for "handle to a pen collection mode."
The identifier of the packet in the task-specific queue at which the pen input
should be terminated. If this value is PID_CURRENT, pen input stops
immediately (that is, at the latest position in the task queue) and no further input is
collected. The idEvent
parameter is the low-order word of the value returned from the Windows GetMessageExtraInfo
function when processing a WM_LBUTTONDOWN message.
The reason for termination. This value is passed to the termination message
PE_TERMINATED. It can be one of the following:
||Application terminated input.
||Pen was pressed outside bounding rectangle or region.
||Pen was pressed inside exclusion rectangle or region.
||Pen was lifted from the tablet.
||Pen left the tablet's range of sensitivity.
Returns PCMR_OK if successful; otherwise, the return value can be one of the
||The hpcm handle is invalid because the calling application did not start input with StartPenInput.
||idEvent is invalid.
This function allows an application to explicitly terminate pen collection
without waiting for one of the conditions specified by StartPenInput
in the dwPcm
member of PCMINFO
Due to the asynchronous nature of pen input messages, the application should
wait for the WM_PENEVENT message with wParam
set to PE_TERMINATED to make sure that the pen input process has completely
terminated. This does not apply if the application is using the polling method of
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