Saves into the given XML file all of the graphic items already added to the waveform analyzer.
The XML file is normally saved in ANSI format: in case one or more of the saved strings should contain UNICODE characters, the file would be automatically saved in UTF-8 format.
For details about graphic items management on the waveform analyzer refer to the How to add graphic items to the Waveform analyzer section.
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.