Hello,

i once tried to lock the screen with LockWindowUpdate..
the call succeeded but it wasn't the effect I was locking for cause the child windows where drawn after the call anyway ..

i had to lock the Desktop to "freeze" the whole app

e.g.

DECLARE INTEGER GetDesktopWindow IN WIN32API
DECLARE INTEGER LockWindowUpdate IN WIN32API INTEGER

lnSuccess = LockWindowUpdate(GetDesktopWindow())

&& cascade Forms ..

lnSuccess = LockWindowUpdate(0)

Regards and Happy X-Mas

Christian