[perl-win32-gui-users] Force overlapped DCs to update?

[Steve Loughran]

Hi all

When I grab a window's (or DC's) contents and save it out as an image 
for later use, it all works fine unless the window/DC is partially 
offscreen or overlapped/overlayed by another window. Is there a flag or 
style I can use to force the window/DC to be updated by the system to 
prevent this? I know its done to minimize the amount of work the system 
has to do, but just wondering anyway.

Steve