Visual Studio 2005 和 Live Messenger 最无用的插件

• 下载插件 - 450 KB
• 下载源代码 - 16.2 KB

引言

你是否曾经想在 Live Messenger 上展示你的下一个秘密项目，让你的朋友们来询问？没有什么比这个为 Visual Studio 2005 设计的没用插件更好的了，它允许你在 Live Messenger 上显示“正在编辑……”

使用代码

这段代码的重要部分如下

//Define the following in the class
private EnvDTE.WindowEvents winEvents;
//In the OnConnection function, do the following
// Retrieve the event objects from the automation model.
winEvents = (EnvDTE.WindowEvents)events.get_WindowEvents(null);
winEvents.WindowActivated += 
  new _dispWindowEvents_WindowActivatedEventHandler(this.WindowActivated); 
//In the OnDisconnection, make sure you clean up the event handler
winEvents.WindowActivated -= 
  new _dispWindowEvents_WindowActivatedEventHandler(this.WindowActivated);
//To use FindWindowExA and SendMessageA, 
//you have to import those functions from user32.dll
//Do the following in the class

[DllImport("user32", EntryPoint = "SendMessageA")] 
private static extern int SendMessage(int Hwnd, 
               int wMsg, int wParam, int lParam);

[DllImport("user32", EntryPoint = "FindWindowExA")] 
private static extern int FindWindowEx(int hWnd1, 
               int hWnd2, string lpsz1, string lpsz2);

//And Since we use a constant for WM_COPYDATA, we define
private const short WM_COPYDATA = 74;


//This is the actual function that sends message to MSN.
//The exact format for the string can be found in MSN API section of MSDN
private void SendMSNMessage(bool enable, string category, string message)
{
    string buffer = "\\0" + category + "\\0" + 
                   (enable ? "1" : "0") + 
                   "\\0{0}\\0" + message + "\\0\\0\\0\\0\0"; 
    int handle = 0; 
        data.dwData = 0x0547;
        data.lpData = VarPtr(buffer);
        data.cbData = buffer.Length * 2;
        handle = FindWindowEx(0, handle, "MsnMsgrUIManager", null);
        if (handle > 0)
          SendMessage(handle, WM_COPYDATA, 0, VarPtr(data));
}

//Finally the event handling function.
public void WindowActivated(EnvDTE.Window gotFocus,EnvDTE.Window lostFocus)
{
    SendMSNMessage(true, "Music","Coding in Visual Studio: " + 
                   gotFocus.Caption); 
}

虽然这篇文章很短，但代码也很短，这对于那些对开发和扩展 VS2005 感兴趣的人来说非常棒。我用了3个小时完成了这段代码，包括学习 VS2005 的插件架构；我相信你能做得更好。

更多细节，请查看 Visual Studio 2005 SDK，可以从微软网站免费下载。祝你好运，玩得开心！

关注点

这个插件中有一些你可能感兴趣的地方

• 如何在 C# 中发送窗口消息
• 如何与 MSN Messenger 的 API 通信
• 如何为 Visual Studio 2005 编写插件
• 如何在 Visual Studio 2005 中处理事件

历史

• 版本 1.0 - 仅供你个人使用。