I'm trying to achieve this kind of GUI without the minimize button but only the close button. (screenshot from a window from the Koda FormDesigner) I've tried just removing $WS_MINIMIZEBOX but I ended up having no title bar at all. Anyone with a push (or kick XD) in the right direction? Edit: ok it turned out removing $WS_MINIMIZEBOX in Koda also was missing $WS_CAPTION that's why that happened to me... My window now is without the minimizebox... But can I make it look more like a kind of modal or something like in the first screenshot?