{
SetWindowLongPtr(hMainWnd, GWL_STYLE, GetWindowLongPtr(hMainWnd, GWL_STYLE) | WS_CAPTION);
SetWindowPos(hMainWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_FRAMECHANGED);
}
{
SetWindowLongPtr(hMainWnd, GWL_STYLE, GetWindowLongPtr(hMainWnd, GWL_STYLE) | WS_CAPTION);
SetWindowPos(hMainWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_FRAMECHANGED);
}