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Recall Web 浏览器开发人员指南

许多 Web 浏览器支持“InPrivate”浏览的概念，其中用户历史记录不会保存。

Recall确保在这种模式下不会保存用户的浏览历史记录，应用可以使用SetInputScope函数将输入范围设置为IS_PASSWORD。

重要

你的应用还必须注册一个 http 或 https 协议处理程序，然后 SetInputScope 才能支持本文中所述的行为。

[DllImport("msctf.dll", SetLastError = true)]
private static extern int SetInputScope(IntPtr hwnd, InputScope inputScope);

private new enum InputScope : int
{
    IS_DEFAULT = 0,
    IS_URL = 1,
    IS_FILE_FULLFILEPATH = 2,
    IS_PRIVATE = 0x1f // Input is treated as private (e.g. passwords)
}

private void EnterInPrivateMode()
{
    // Get your HWND. This will vary based on your UI Framework. WPF can use WindowInteropHelper, passing in your current Window.
    IntPtr hwnd = new WindowInteropHelper(this).Handle;

    // Then, set the input scope on the HWND to private
    SetInputScope(hwnd, InputScope.IS_PRIVATE);
}

private void ExitInPrivateMode()
{
    // Get your HWND. This will vary based on your UI Framework. WPF can use WindowInteropHelper, passing in your current Window.
    IntPtr hwnd = new WindowInteropHelper(this).Handle;

    // Then, set the input scope on the HWND to default
    SetInputScope(hwnd, InputScope.IS_DEFAULT);
}

当用户处于“专用”浏览模式时，你的应用应暂停提供用户活动。