create a button using BS_GROUPBOX for example.
Const BS_GROUPBOX = $7
group = apiCreateWindow(0,"BUTTON",title$,WS_CHILD Or WS_VISIBLE Or BS_GROUPBOX Or styleType ,x,y,width,height,group,0,apiGetModuleHandle(0),0)
Const BS_GROUPBOX = $7
group = apiCreateWindow(0,"BUTTON",title$,WS_CHILD Or WS_VISIBLE Or BS_GROUPBOX Or styleType ,x,y,width,height,group,0,apiGetModuleHandle(0),0)