Remove ability to close from taskbar

Question

I would like to remove the ability for a user to close a window in my application from the taskbar in windows 7:

The close button in the image should not be available.

Any suggestions?

Answer 1

You shouldn't do this. Window managing/decorating is left to the window manager, you should rather handle the "close" event in some way, and avoid the applicaiton exiting.

Also, middle clicking (mouse2) on any part of that preview will also close the window, so it's not a matter of just hiding that button.