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CallbackCurveDesignerPointsChangeSet method |
  
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CallbackCurveDesignerPointsChangeSet method |
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Remarks
Sets the function of the CallbackCurveDesignerPointsChange callback delegate which notifies when the curve inside a curve designer control is modified by dragging one of the control points through the mouse interaction.
For further details about callback delegates see the How to synchronize the container application with the API tutorial.
Syntax
[Visual Basic] Public Function CallbackCurveDesignerPointsChangeSet ( function as CallbackCurveDesignerPointsChange ) as enumErrorCodes |
[C#] public enumErrorCodes CallbackCurveDesignerPointsChangeSet ( CallbackCurveDesignerPointsChange function ); |
[C++] public: enumErrorCodes CallbackCurveDesignerPointsChangeSet ( CallbackCurveDesignerPointsChange function ); |
Parameter |
Description |
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function |
Callback function |
when using the API from Unmanaged C++ through COM interaction, where the client application is totally unaware about .NET delegates, you should use the "Ptr" version of the method which allows passing the pointer to the callback function:
[Unmanaged C++] enumErrorCodes CallbackCurveDesignerPointsChangeSetPtr ( (UINT_PTR) functionPointer ); |
Parameter |
Description |
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functionPointer |
Pointer to the callback function. See the Adding the API to an unmanaged Visual C++ project tutorial for details about usage of the "Ptr" version of these methods. |
Return value
Value |
Meaning |
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Negative value |
An error occurred. Check the LastError property value in order to see the last error. |
enumErrorCodes.ERR_NOERROR (0) |
The method call was successful. |
