Don't hide and restore the window when changing it to be a popup

style.

dlls/d3d8/directx.c

@@ -1348,12 +1348,10 @@ HRESULT  WINAPI  IDirect3D8Impl_CreateDevice               (LPDIRECT3D8 iface,
 #endif
 
         /* Make popup window */
-        ShowWindow(whichHWND, SW_HIDE);
         SetWindowLongA(whichHWND, GWL_STYLE, WS_POPUP);
         SetWindowPos(object->win_handle, HWND_TOP, 0, 0, 
 		     pPresentationParameters->BackBufferWidth,
                      pPresentationParameters->BackBufferHeight, SWP_SHOWWINDOW | SWP_FRAMECHANGED);
-        ShowWindow(whichHWND, SW_SHOW);
     }
 
     TRACE("Creating back buffer\n");