如何在一个程序中调用另一个程序

Question

如何在一个程序中间调用另一个程序，使得在点击本程序中按钮的同时就间接的点击了另一个程序的按钮，使得本程序调用了另一个程序，但是又不显示另一个程序的窗口

Answer 1

可以参考一下这个，但是如果被调程序有界面的话，不知道怎么隐藏

http://blog.csdn.net/zzzxxbird/article/details/6418197

Answer 2

Hi,
你可以用Win32 APi中的'SendMessage','FindWindows','FindWindowsEx'来实现你的需求（不过需要先捕获到对应按钮的句柄）

        //消息常量
        private const int WM_LBUTTONUP = 0x202;
        private const int WM_LBUTTONDOWN 0x201 ;
        //寻找窗口句柄
        [DllImport("User32.dll", EntryPoint = "FindWindow")]
        public extern static IntPtr FindWindow(string lpClassName, string lpWindowName);
        //寻找子窗口句柄（控件句柄）
        [DllImport("User32.dll", EntryPoint = "FindWindowEx")]
        public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpClassName, string lpWindowName);
        //发送Message
        [DllImport("User32.dll", EntryPoint = "SendMessage")]
        public static extern int SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);

Regards,
Moonlight

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Answer 3

调用另一个进程并隐藏该进程的窗体是可以做到的，但“执行当前按钮操作，目的进程也需要被操作”有些难度

ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.CreateNoWindow = true;  //不显示另一个程序的窗口
startInfo.UseShellExecute = false;
startInfo.FileName = "dcm2jpg.exe";
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
startInfo.Arguments = "-f j -o \"" + ex1 + "\" -z 1.0 -s y " + ex2;

// Call WaitForExit and then the using-statement will close.
using (Process exeProcess = Process.Start(startInfo))
 {
     exeProcess.WaitForExit();
 }
 

若是.NET程序，考虑用反射技术直接调用目的程序中的方法。

若是非.NET程序，目的程序要公布SDK接口才可以这样做，比如Outlook二次开发

或是hook，code inject技术，将代码注入到目的进程中，参考下面

http://www.codeproject.com/Articles/5038/Using-Hooks-from-C

http://www.codeproject.com/Articles/20565/Assembly-Manipulation-and-C-VB-NET-Code-Injection

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Answer 4

你说的对我很有用，给的参考我看了，谢谢