Zitat:
WS_OVERLAPPED
Creates an overlapped window. An overlapped window has a title bar and a border. Same as the WS_TILED style.
WS_OVERLAPPEDWINDOW
Creates an overlapped window with the WS_OVERLAPPED, WS_CAPTION, WS_SYSMENU, WS_THICKFRAME, WS_MINIMIZEBOX, and WS_MAXIMIZEBOX styles. Same as the WS_TILEDWINDOW style.
Ergo die nötigen Stile einzeln setzen und WS_BORDERR weglassen. BTW fällt auf dass WS_OVERLAPPEDWINDOW den Stil WS_THICKFRAME beinhaltet.
