WinAPI 旺旺自动发送消息 FindWindow/SendMessage

通过WinAPI自带的FindWindow、FindWindowEx找到消息窗口，然后
通过SendMessage写/发送消息。辅助工具SPY++（VS2008自带）

弹出信息窗口方式IE：
阿里旺旺:aliim:sendmsg?uid=cntaobao发送者帐号&touid=cntaobao接收者帐号

WinAPI 调用：
[DllImport("User32.dll", EntryPoint = "FindWindow")]  
        private static extern IntPtr FindWindow(string lpClassName,string lpWindowName);  

[DllImport("User32.dll", EntryPoint = "FindWindowEx")]  
        private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpClassName, string lpWindowName); 

[DllImport("User32.DLL")] 
public static extern int SendMessage(IntPtr hWnd,       uint Msg, int wParam, string lParam);

DEMO:
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