I am using Delphi under NT and the following code:-
if handle>0 then
if IsIconic(handle) then
It works okay if the other app is in a normal state, but if it is minimized it will not restore itself properly.
You can use the window but you cannot minimize it unless you right mouse click on the program icon and select restore. I have read about Delphi using a hidden form, does this affect it?