Copyright © 2011-2018 MultiMedia Soft

OnWaveformAnalyzerRange event

Previous pageReturn to chapter overviewNext page



Occurs when the sound waveform's range displayed on the Waveform Analyzer's display has been changed after a zooming operation or after a scrolling operation or after a call to the WaveformAnalyzer.SetDisplayRange method.


This event replaces the usage of the CallbackWaveformAnalyzerRange delegate and is only intended for usage with applications developed using Visual Basic 6 (which results unreliable when dealing with delegates and callbacks) and, in order to be enabled, requires a call to the COMEventsEnable method.


For details about the use of the Waveform Analyzer refer to the How to use the Waveform Analyzer section.

For further details about methods of the Waveform Analyzer refer to the WaveformAnalyzer class section.





[Visual Basic 6]

Private Sub EditorApi_OnWaveformAnalyzerRange ( _

ByVal nBeginPosInMs as Long, _

ByVal nEndPosInMs as Long _



where "EditorApi" is declared in Visual Basic 6 code as:


Dim WithEvents EditorApi As AudioSoundEditorApi.AudioSoundEditorApiObj



Event Data






Displayed range start position, expressed in milliseconds


Displayed range end position, expressed in milliseconds