[vtkusers] How to use mouse and keyboard to resize a rectangle?

[Davood Ansari]

Hi

I know very little about Interactors and events. My problem is that I have a
rectangle on the render window and
I want to have a way to resize the rectangle(it is actually for selecting a
rectangular area of the image).
For example I would like to have the edges of the rectangle move with the
mouse cursor when I have
both the "Ctrl" key and the "Left Click" pushed. Can anyone help me be
telling how ?

thanks
Davood Ansari
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