var instance = new Vintasoft.Imaging.DocumentViewer.WebDocumentViewerJS(settings);

var value; // Type: object
value = instance.getAnnotationViewerUndoMonitor();

function getAnnotationViewerUndoMonitor() : object;

Return Value

Newly created monitor is disabled by default and must be enabled in the code if this is necessary.
This function will create new monitor if previously created monitor is destroyed.

Reference

WebDocumentViewerJS Class
WebDocumentViewerJS Members