wndproc

// Default message handler ------------------------------------------------------------
LRESULT CALLBACK WndProc(HWND hwnd, UINT umessage, WPARAM wparam, LPARAM lparam)
{
    switch(umessage)
    {
        // Check if the window is being destroyed
        case WM_DESTROY:
        {
            PostQuitMessage(0);
            return 0;
        }

        // Check if the window is being closed
        case WM_CLOSE:
        {
            PostQuitMessage(0);
            return 0;
        }

        // All other messages pass to the message handler in the engine
        default:
        {
            return Engine::Get()->MessageHandler(hwnd, umessage, wparam, lparam);
        }
    }
}

// Application message handler --------------------------------------------------------
LRESULT CALLBACK Engine::MessageHandler(HWND hwnd, UINT umessage, WPARAM wparam, LPARAM lparam)
{
    switch(umessage)
    {
        case WM_SIZE:
        {
            Float screenWidth, screenHeight;
            bool result;

            // Get the new window dimensions
            screenWidth = LOWORD(lparam);
            screenHeight = HIWORD(lparam);

            // Resize the window and buffers
            result = mWindow.Resize(screenWidth, screenHeight);
            if(!result) { MessageBoxW(hwnd, L"Error resizing the swap chain buffers.", L"An error has occured", MB_OK); PostQuitMessage(0); }

            return 0;
        }

        // Check if a key has been pressed on the keyboard
        case WM_KEYDOWN:
        {
            // If a key is pressed send it to the input object so it can record that state
            //mInput->KeyDown((UInt)wparam);
            return 0;
        }

        // Check if a key has been released on the keyboard
        case WM_KEYUP:
        {
            // If a key is released then send it to the input object so it can unset the state for that key
            //mInput->KeyUp((UInt)wparam);
            return 0;
        }

        // All other messages pass to the default message handler
        default:
        {
            return DefWindowProc(hwnd, umessage, wparam, lparam);
        }
    }
}