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TJamFilePreviewLoadPreviewEventArgs Properties
TJamFilePreviewLoadPreviewEventArgs Properties
Ensures that the Preview is loaded in the main thread.  
Set this property to false if you don't want the file to previewed as thumbnail in case there is no previewHandler.  
Readonly property that contains the complete path of the file that is about to be previewed  
Use property PreviewHandlerGuid to specify or turn off the PreviewHandler used for this file.