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有没有机会使用 ac# 程序从 Windows 控制中心打开调制解调器对话框?

具体对话框是:Windows -> Control center -> Telephone and modem -> tab advanced -> select provider -> button configuration

启动的进程在任务管理器中显示为 dllhost.exe。

谢谢和亲切的问候 Bine

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1 回答 1

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您可以通过“运行” telephon.cpl “程序”来打开电话和调制解调器控制面板项。您可以通过 p/invoke 直接使用 SHELL32 函数或使用 RunDll32 来执行此操作。

RunDll32 是一个包含在 Windows 中的程序,它加载一个 DLL,并在其中运行一个函数,由命令行参数指定。这通常是外壳(资源管理器)运行控制面板小程序的方式。

您也可以自己使用 shell32 函数直接加载 CPL。

这是示例代码:

[System.Runtime.InteropServices.DllImport("shell32", EntryPoint = "Control_RunDLLW", CharSet = System.Runtime.InteropServices.CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
private static extern bool Control_RunDLL(IntPtr hwnd, IntPtr hinst, [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string lpszCmdLine, int nCmdShow);

private void showOnMainThread_Click(object sender, EventArgs e)
{
    const int SW_SHOW = 1;
    // this does not work very well, the parent form locks up while the control panel window is open
    Control_RunDLL(this.Handle, IntPtr.Zero, @"telephon.cpl", SW_SHOW);
}

private void showOnWorkerThread_Click(object sender, EventArgs e)
{
    Action hasCompleted = delegate
    {
        MessageBox.Show(this, "Phone and Modem panel has been closed", "Notification", MessageBoxButtons.OK, MessageBoxIcon.Information);
    };

    Action runAsync = delegate
    {
        const int SW_SHOW = 1;
        Control_RunDLL(IntPtr.Zero, IntPtr.Zero, @"telephon.cpl", SW_SHOW);
        this.BeginInvoke(hasCompleted);
    };

    // the parent form continues to be normally operational while the control panel window is open
    runAsync.BeginInvoke(null, null);
}

private void runOutOfProcess_Click(object sender, EventArgs e)
{
    // the control panel window is hosted in its own process (rundll32)
    System.Diagnostics.Process.Start(@"rundll32.exe", @"shell32,Control_RunDLL telephon.cpl");
}
于 2016-02-20T00:52:05.460 回答