Developing SSMS 17 extension using Visual Studio 2017

           I am developing a extension using ToolWindow for ssms17 using vs2017,

1. created a menu under "view" => other window=> ToolWindow1

2. Followed https://www.codeproject.com/Articles/1243356/Create-Your-Own-SQL-Server-Management-Studio-SSMS

3. done changes in VSCT file for menu id and in Regedit as well.

4. the menu created has been loaded as follows,

Problem:

Now, when i click ToolWindow1 i am not getting onclick event is being raised.

1. how should i subscribe to on click event

2. or, how to display a menu when i do a right click in ssms editor

3. please suggest me good online resource for developing ssms extension 17 using vs 17.

Please help me. Thanks in advance.