Hi

I have a delphi 2007 video jukebox application that has been working away quite 
happily for years.
However, since I turned desktop composition on, to prevent video tearing under 
Windows 7, the user
interface screen intermittently freezes. The application continues to run 
normally,
accepting keyboard input, playing videos etc. but all the user interface screen 
captions do
not update.

I've tried a combination of the following to kick my screen back to life.

SendMessage(form1.Handle, WM_SETREDRAW, 1, 0);
form1.SendToBack;
form1.BringToFront;
form1.Update;
form1.Refresh;

But none seem to work.

I would be very grateful for any ideas on how to firstly detect if the screen 
has frozen and then fix it.

Thanks

Tim


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