如何在 Powerpoint 2013 插件（用 C# 开发）中获取“ctrl c”或鼠标复制事件？答案

【问题标题】：How to get the "ctrl c" or mouse copy event in a Powerpoint 2013 Addin (developed in C#)?如何在 Powerpoint 2013 插件（用 C# 开发）中获取“ctrl c”或鼠标复制事件？
【发布时间】：2017-01-11 16:24:39
【问题描述】：

下面的代码不是在 MS Powerpoint 中捕获字符类型，它只是在 Powerpoint 之外，我如何才能在此代码中捕获“控制副本”或“鼠标右键单击副本”？

    public partial class ThisAddIn
    {

        private const int WH_KEYBOARD_LL = 13;
        private const int WM_KEYDOWN = 0x0100;

        private static IntPtr hookId = IntPtr.Zero;
        private delegate IntPtr HookProcedure(int nCode, IntPtr wParam, IntPtr lParam);
        private static HookProcedure procedure = HookCallback;

        [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr GetModuleHandle(string lpModuleName);

        [DllImport("user32.dll", SetLastError = true)]
        private static extern bool UnhookWindowsHookEx(IntPtr hhk);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr SetWindowsHookEx(int idHook, HookProcedure lpfn, IntPtr hMod, uint dwThreadId);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);  


        private void ThisAddIn_Startup(object sender, System.EventArgs e)
        {
            hookId = SetHook(procedure);
        }

        private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
        {
            UnhookWindowsHookEx(hookId);
        }


        private static IntPtr SetHook(HookProcedure procedure)
        {
            using (Process process = Process.GetCurrentProcess())
            using (ProcessModule module = process.MainModule)
                return SetWindowsHookEx(WH_KEYBOARD_LL, procedure, GetModuleHandle(module.ModuleName), 0);
        }

        private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
        {
            if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)
            {



                int pointerCode = Marshal.ReadInt32(lParam);
                string pressedKey = ((Keys)pointerCode).ToString();

                //Do some sort of processing on key press
                var thread = new Thread(() => { if (pressedKey.ToLower() == "LControlKey") { MessageBox.Show(pressedKey); } });
                thread.Start();
            }
            return CallNextHookEx(hookId, nCode, wParam, lParam);
        }


        protected override Microsoft.Office.Core.IRibbonExtensibility CreateRibbonExtensibilityObject()
        {
            return new Ribbon();
        }

        #region VSTO generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InternalStartup()
        {
            this.Startup += new System.EventHandler(ThisAddIn_Startup);
            this.Shutdown += new System.EventHandler(ThisAddIn_Shutdown);
        }

        #endregion
    }

【问题讨论】：

标签： c# vsto powerpoint keyhook mousekeyhook

【解决方案1】：

使用自定义功能区。

<customUI xmlns="http://schemas.microsoft.com/office/2009/07/customui" onLoad="Ribbon_Load">
  <commands>
    <command idMso="Cut" onAction="CopyIntercept" />
    <command idMso="Copy" onAction="CopyIntercept" />
  </commands>
</customUI>

public void CopyIntercept(IRibbonControl control, ref bool CancelDefault)
{
}

您也许可以使用功能区设计器来完成此操作，但上面的示例适用于 XML 功能区。

【讨论】：