_IAnalysisEvents::Activity event
Occurs when the IInkAnalyzer::Analyze method or IInkAnalyzer::BackgroundAnalyze method is called.
Syntax
HRESULT Activity();
Parameters
This event has no parameters.
Return value
For a description of the return values, see Classes and Interfaces - Ink Analysis.
Remarks
This event indicates that the IInkAnalyzer is performing ink analysis. This event does not indicate the progress of the ink analysis operation.
To do any of the following, implement an _IAnalysisEvents::Activity event handler:
- Indicate to the user that the ink analyzer is performing ink analysis.
- Process user input during synchronous analysis.
- Receive notification of system requests, such as repainting of the application's window, during ink analysis.
The IInkAnalyzer raises this event frequently during the layout analysis phase and the writing and drawing classification phase of ink analysis. The IInkAnalyzer raises this event during the handwriting recognition phase before and after accessing an ink recognizer.
The number of activity events an IInkAnalyzer generates is affected by:
- The ink recognizer that the IInkAnalyzer applies to ink recognition.
- The number and length of strokes that the IInkAnalyzer is analyzing.
- The number of strokes that are classified as writing.
For more information about synchronizing your application data with the IInkAnalyzer, see Data Proxy with Ink Analysis.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows XP Tablet PC Edition [desktop apps only] |
| Minimum supported server |
None supported |
| Header |
|
| DLL |
|