WM_PENEVENT
Sent to an
application after StartPenInput has initiated a pen collection.
Parameters
wParam
Submessage
identifier as described in the following table. Each submessage is documented
separately.
|
Constant |
Description |
|
PE_BEGINDATA |
Initialization
message to all targets. |
|
PE_BEGININPUT |
Begin
default input. |
|
PE_BUFFERWARNING |
The input
queue is getting full. The application should call GetPenInput. |
|
PE_ENDDATA |
Termination
message to all targets. |
|
PE_RESULT |
Recognition
result message to all targets. |
|
PE_ENDINPUT |
Input
termination message to window. |
|
PE_GETINKINGINFO |
Get inking
information. |
|
PE_GETPCMINFO |
Get input
collection information. |
|
PE_MOREDATA |
Target gets
more data. |
|
PE_PENMOVE |
The pen
moved, placing more packets into the input queue without a tip transition.
This mes-sage is coalesced with other PE_PENMOVE messages, so the Windows
queue has only a single such message waiting. |
|
PE_PENDOWN |
The pen tip
went down. |
|
PE_PENUP |
The pen tip
went up. |
|
PE_SETTARGETS |
Set TARGINFO target data structure. |
|
PE_TERMINATED |
Pen input
terminated. The HPCM handle for the current collection has become
invalid. |
|
PE_TERMINATING |
Pen input
is about to terminate. The application must retrieve any remaining points
immediately. |
lParam
Depends on wParam.
In most cases, this is extra information encapsulating a reference to the event
and the HPCM that generated it. These are retrieved using the EventRefFromWpLp
and HpcmFromWpLp macros.
Comments
This message
is not sent if polling is used that
is, if the dwPcm member of the PCMINFO1AOCX8 structure contains the PCM_DOPOLLING flag.
See Also