Function CreateRenderWindow

Source/Player/WinMain.cpp:37–84

static BE1::CVar            disp_frequency("disp_frequency", "0", BE1::CVar::Flag::Integer | BE1::CVar::Flag::Archive, "");

static HWND CreateRenderWindow(const TCHAR *title, const TCHAR *classname, int width, int height, bool fullscreen) {
    int style = WS_VISIBLE;
    int styleEx;
    BE1::Rect windowRect;

    if (fullscreen) {
        styleEx = WS_EX_TOPMOST;
        style |= WS_POPUP;
    } else {
        styleEx = 0;
        style |= WS_OVERLAPPEDWINDOW;
    }

    RECT rect;
    ::SetRect(&rect, 0, 0, width, height);
    ::AdjustWindowRect(&rect, style, fullscreen ? FALSE : TRUE);

    if (fullscreen) {
        windowRect.x = 0;
        windowRect.y = 0;
    } else {
        windowRect.x = CW_USEDEFAULT;
        windowRect.y = CW_USEDEFAULT;
    }

    windowRect.w = rect.right - rect.left;
    windowRect.h = rect.bottom - rect.top;

    HWND hwnd = ::CreateWindowEx(
        styleEx,
        classname,
        title,
        style,
        windowRect.x, windowRect.y, windowRect.w, windowRect.h, 
        NULL, NULL, (HINSTANCE)GetModuleHandle(NULL), NULL);

    if (fullscreen) {
        hmenu = GetMenu(hwnd);
        if (hmenu) {
            SetMenu(hwnd, NULL);
        }
    }

    ::SetForegroundWindow(hwnd);
    ::SetFocus(hwnd);

    return hwnd;
}

static void ChangeRenderWindow(HWND hwnd, int width, int height, bool fullscreen) {
    int style = ::GetWindowLong(hwnd, GWL_STYLE);