is there sample program for C# API?
If you do not know why to use the C++ API we suggest to get a API training for it.
Please get in contact with your WinCC OA sales contact if you want to attend a WinCC OA training.
Senior Support Specialist
Just to mention that if you are already familiar with c#, there is a bunch of examples in online help.
Section is called "Special functions/ C#-API/Code Examples"
Also if I am not mistaken, created a c# manager via cmd tool is containing those examples as well.