OnWindowStateChange

[Carver413]

Hi
I'm tring to trap min/max changes to a form and either prevent these changes and or alter the size changes. with min I would like to Iconify the form and move it to a position of my choosing but not in the task bar. and on max I would like to maximise the form in a define region of the screen. I have tried OnWindowStateChange and OnResize but size changes seem to be ignored. I'm working on a window  manager and I really would like these to work.
Please Help.