Method AppWindow

SampleApps/WebView2APISample/AppWindow.cpp:201–298

Creates a new window which is a copy of the entire app, but on the same thread.

// Creates a new window which is a copy of the entire app, but on the same thread.
AppWindow::AppWindow(
    UINT creationModeId, const WebViewCreateOption& opt, const std::wstring& initialUri,
    const std::wstring& userDataFolderParam, bool isMainWindow,
    std::function<void()> webviewCreatedCallback, bool customWindowRect, RECT windowRect,
    bool shouldHaveToolbar, bool isPopup)
    : m_creationModeId(creationModeId), m_webviewOption(opt), m_initialUri(initialUri),
      m_onWebViewFirstInitialized(webviewCreatedCallback), m_isPopupWindow(isPopup)
{
    // Initialize COM as STA.
    CHECK_FAILURE(OleInitialize(NULL));

    ++s_appInstances;

    WCHAR szTitle[s_maxLoadString]; // The title bar text
    LoadStringW(g_hInstance, IDS_APP_TITLE, szTitle, s_maxLoadString);
    m_appTitle = szTitle;
    DWORD windowStyle = WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
    if (m_webviewOption.useWco)
    {
        windowStyle &= ~WS_OVERLAPPEDWINDOW;
        windowStyle |= (WS_POPUP | WS_THICKFRAME | WS_MAXIMIZEBOX | WS_MINIMIZEBOX);
    }


    if (userDataFolderParam.length() > 0)
    {
        m_userDataFolder = userDataFolderParam;
    }

    if (customWindowRect)
    {
        m_mainWindow = CreateWindowExW(
            WS_EX_CONTROLPARENT, GetWindowClass(), szTitle, windowStyle, windowRect.left,
            windowRect.top, windowRect.right - windowRect.left,
            windowRect.bottom - windowRect.top, nullptr, nullptr, g_hInstance, nullptr);
    }
    else
    {
        m_mainWindow = CreateWindowExW(
            WS_EX_CONTROLPARENT, GetWindowClass(), szTitle, windowStyle, CW_USEDEFAULT, 0,
            CW_USEDEFAULT, 0, nullptr, nullptr, g_hInstance, nullptr);
    }

    m_appBackgroundImageHandle = (HBITMAP)LoadImage(
        g_hInstance, MAKEINTRESOURCE(IDI_WEBVIEW2_BACKGROUND), IMAGE_BITMAP, 0, 0,
        LR_DEFAULTCOLOR);
    GetObject(m_appBackgroundImageHandle, sizeof(m_appBackgroundImage), &m_appBackgroundImage);
    m_memHdc = CreateCompatibleDC(GetDC(m_mainWindow));
    SelectObject(m_memHdc, m_appBackgroundImageHandle);

    SetWindowLongPtr(m_mainWindow, GWLP_USERDATA, (LONG_PTR)this);

    //! [TextScaleChanged1]
    if (winrt::try_get_activation_factory<winrt::Windows::UI::ViewManagement::UISettings>())
    {
        m_uiSettings = winrt::Windows::UI::ViewManagement::UISettings();
        m_uiSettings.TextScaleFactorChanged({this, &AppWindow::OnTextScaleChanged});
    }