Here you go:
Extern "win32" Function FindWindow(lpClassName$z, lpWindowName$z) = "FindWindowA@8" Function GetSystemMenu(hwnd, bRevert) Function RemoveMenu(hMenu, nPosition, wFlags) End Extern AppTitle = "No Close" SetGraphicsDriver D3D7Max2DDriver() Graphics 640, 480, 0, 60 WindowMode Repeat Flip; Cls Until KeyDown(KEY_ESCAPE) Function WindowMode() Local hWnd% = FindWindow("BBDX7Device Window Class", "No Close") hMenu = GetSystemMenu(hWnd, 0) RemoveMenu hMenu, $F060, 0 DrawMenuBar hWnd End Function