I am new in ArcGis. I came across a requirement that I need a command on the ArcGis Toolbar. On click the command, a Windows Form will open and there one region selector button is there. upon clicking on the button, the current Form UI must be minimized and the user will be allowed to draw a polygon. Can you please help on how to do that. Here is the code. I took normal windows button and wrote the below code in the click event.