VSTO C# in Powerpoint: WindowSelectionChange Event

Question

I am new to VSTO and C# and have a question regarding events. I'm trying to fire an event when the user selects something within PowerPoint (e.g. a shape, slide, etc).

I found a working solution for VBA in the Office documentation here and some more info for a Word selection handler here, however I'm clueless on how and where to add it in my ThisAddIn.cs context.

I'm currently working from a fresh C# PowerPoint VSTO Addin

Any pointers into the right direction are highly welcome. Thanks!

Answer 1

Found this and it works:

private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
    this.Application.WindowSelectionChange += Application_WindowSelectionChange;

}

private void Application_WindowSelectionChange(PowerPoint.Selection Sel)
{
    //throw new NotImplementedException();
    MessageBox.Show("Hello");
}