Function WndProc

Apps/Playground/Win32/App.cpp:269–366

FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM) PURPOSE: Processes messages for the main window. WM_COMMAND - process the application menu WM_PAINT - Paint the main window WM_DESTROY - post a quit message and return

//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
        case WM_SYSCOMMAND:
        {
            if ((wParam & 0xFFF0) == SC_MINIMIZE)
            {
                runtime->Suspend();
            }
            else if ((wParam & 0xFFF0) == SC_RESTORE)
            {
                runtime->Resume();
            }
            DefWindowProc(hWnd, message, wParam, lParam);
            break;
        }
        case WM_COMMAND:
        {
            int wmId = LOWORD(wParam);
            // Parse the menu selections:
            switch (wmId)
            {
                case IDM_ABOUT:
                    DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
                    break;
                case IDM_EXIT:
                    DestroyWindow(hWnd);
                    break;
                default:
                    return DefWindowProc(hWnd, message, wParam, lParam);
            }
            break;
        }
        case WM_PAINT:
        {
            PAINTSTRUCT ps;
            BeginPaint(hWnd, &ps);
            EndPaint(hWnd, &ps);
            break;
        }
        case WM_SIZE:
        {
            if (runtime != nullptr)
            {
                auto width = static_cast<size_t>(LOWORD(lParam));
                auto height = static_cast<size_t>(HIWORD(lParam));
                UpdateWindowSize(width, height);
            }
            break;
        }
        case WM_DESTROY:
        {
            Uninitialize();
            PostQuitMessage(0);
            break;
        }
        case WM_KEYDOWN: