When I do Alt+middle click on a window, the mouse gets unresponsive. Cycling through the windows back and forth with Alt+Tab brings it back alive.
Please retry with current code
Yes! It works great :)
I was too hasty, I am able to loose the keyboard now :/
If I open a window, and directly close it (Alt+F4) I loose the keyboard. Moving a window around with the mouse helps, or right clicking the title bar (in which case it tries to close the window and some applcations prevent that with a popup question).
A bit tricky, but it isn't related too just "close a window too fast". Type some text in an area, and finish directly with Alt+F4.
The keyboard will be left unresponsive.
Can you try with svn trunk rev. 26976?
Seems ok to me, I am not able to reproduce :)