I am using the designer for Qt 4.3. Isn't setting the acceptDrops for a dialog to true supposed to remove that stupid "?" button beside "X" close button and replace it with a "_" minimized button that works ?

Well my Dialog is of Qt::ApplicationModal, I have set acceptDrops to true but guess I am missing something. In designer I get the Minimized Button but when I compile the dialog has the ? button.

in the ui_myDialog.h file , it has set the "setAcceptDrops(true)" but still no effect ? Why ??