I have an application that needs to be able to scribble anywhere
on the desktop, but the application's window should be completely
transparent and hidden until needed. It should become visible
with the overlay drawing, then disappear after a short delay.
I don't want title bars, menus, frames, or anything else to
show in the overlay window except the graphic elements. I have
a hotkey functioning to bring control to my application at any
time, but I am having a hard time understanding the blizzard of
available window styles, extended styles, and show commands to
get the window to do what I need. Does anyone have any tips or
pointers they might be able to share on this problem?
The target is NT 4.0, but I don't think this depends on the