c++ - Empty borderless window not showing? -

i'm trying use following code show empty border-less window, no windows appear @ all. followed documentation:

hwnd hwnd = createwindowex(ws_ex_topmost,null,null,ws_popup,0,0,1000,1000,null,null,null,null); showwindow(hwnd, sw_show); 

hwnd hwnd = createwindowex(ws_ex_topmost, l"static", null, ws_popupwindow, 0, 0, 100, 100, null, null, null, null); showwindow(hwnd, sw_show);