Remarks
Sets a background picture from a graphic file.
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 object section.
Syntax
[C++]
short control.WaveformAnalyzer.SetBackPictureFromFile (
LPCTSTR strPathname,
short nMode
);
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Parameter
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Description
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strPathname
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Absolute pathname of the picture file to load. Accepted graphic formats are BMP, JPEG, GIF, TIFF and PNG.
An empty pathname will reset an eventual picture set through a previous call to this method.
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nMode
|
Bitmap mode.
Supported values are the following:
Mnemonic constant
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Value
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Meaning
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BITMAP_MODE_TOP_LEFT
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0
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Bitmap will be drawn in top-left position on the destination rectangle
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BITMAP_MODE_CENTER
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1
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Bitmap will be drawn in centered position on the destination rectangle
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BITMAP_MODE_STRETCH
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2
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Bitmap will be stretched in order to fit the destination rectangle
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BITMAP_MODE_TILE
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3
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Bitmap will be tiled in order to fill the destination rectangle
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Return value
Value
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Meaning
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Negative value
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An error occurred, check the LastError property value in order to get the error code
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enumErrorCodes.ERR_NOERROR (0)
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The method call was successful
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