How to restrict the mouse pointer in a special window?

[tornadory <tornadory 163 com>]

Hi all,

I want to control the mouse pointer in my own window and not out of it.  How could I do? Is there any functions to implement it?

By now, I find that perhaps I could use the leave-notify-event to detect the mouse pointer is leaving the window, but how to restrict it to the right x/y position of the window?

Thanks in advance.

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