LRESULT CALLBACK wndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
        case WM_NCACTIVATE:
        case WM_NCPAINT:
        {
            // DefWindowProc(hWnd, uMsg, wParam, lParam);

            // Custom frame rendering will be done here
            return 0;
        }
    }
    return CallWindowProc(prevWmdProc, hWnd, uMsg, wParam, lParam);;
}