Starts the drawing process.
AnnDrawDesigner.prototype.startWorking = function()
startWorking(): boolean; // protected
true if this AnnDrawDesigner has started the drawing process; otherwise, it is false.
For more information and an example, refer to
Implement User Defined Objects with LEADTOOLS Annotations
Medical Web Viewer .NET
.NET, Java, Android, and iOS/macOS Assemblies
C API/C++ Class Libraries