I have a menu option 'Open...' that opens an OpenFileDialog to select an
image file to open. Than I need to call Form.Invalidate() to clear the Form
and display the image. This happens in a seperate file-handling class.
The problem is that I cannot get access to the Form.
The delegate passes in an 'object' that I can cast to
System.Windows.Form.ToolStripMenuItem. I can call GetParent() on that to get
the ToolStrip. I can query Container, TopLevelContainer but none gives me
the Form that the menu is located on.
How?