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一、两种不同程序写的进程交互
1、定义交互消息
2、定义C进程发来的消息ID
3、定义C进程交互的句柄 及给C进程发送的消息ID
4、定义交互消息所需的数据类型
5、引入所需的系统函数
6、给主进程发消息
7、写入本进程主窗口句柄
8、处理发来的交互消息 一、两种不…
目录
一、两种不同程序写的进程交互
1、定义交互消息
2、定义C进程发来的消息ID
3、定义C进程交互的句柄 及给C进程发送的消息ID
4、定义交互消息所需的数据类型
5、引入所需的系统函数
6、给主进程发消息
7、写入本进程主窗口句柄
8、处理发来的交互消息 一、两种不同程序写的进程交互 1、定义交互消息 public const int WM_COPYDATA 0x004A;public const int CSIDL_APPDATA 0x001a;
2、定义C进程发来的消息ID public const int SubExe_EXIT 1; //退出子进程public const int SubExe_Show 2;public const int SubExe_Hide 3;public const int SubExe_SendInfo -1;
3、定义C进程交互的句柄 及给C进程发送的消息ID
public int m_hxnwHWND 0;public const int ToXnwInfo 200; //给C进程发送
4、定义交互消息所需的数据类型 struct COPYDATASTRUCT{public IntPtr dwData; // Any value the sender chooses. Perhaps its main window handle?public int cbData; // The count of bytes in the message.public IntPtr lpData; // The address of the message.}public struct COPY_DATA{public IntPtr dwData;public int cbData;[MarshalAs(UnmanagedType.LPStr)]public string lpData;}
5、引入所需的系统函数 [DllImport(kernel32.dll)]static extern bool WritePrivateProfileString(string lpAppName, string lpKeyName,string lpString, string lpPath);[DllImport(kernel32.dll)]private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);[DllImport(user32.dll)]public static extern int SendMessage(IntPtr hWnd, int wMsg, IntPtr wParam, IntPtr lParam);[DllImport(shell32.dll)]static extern int SHGetFolderPath(IntPtr hwndOwner, int nFolder, IntPtr hToken, uint dwFlags, [Out] StringBuilder pszPath); 6、给主进程发消息 public static void SendXnwMessage(int hWnd, string message){IntPtr lpData Marshal.StringToHGlobalAnsi(message);COPYDATASTRUCT data new COPYDATASTRUCT();data.dwData (IntPtr)ToXnwInfo;data.cbData message.Length 1;data.lpData lpData;IntPtr lpStruct Marshal.AllocHGlobal(Marshal.SizeOf(data));Marshal.StructureToPtr(data, lpStruct, false);IntPtr nWp IntPtr.Zero;SendMessage((IntPtr)hWnd, WM_COPYDATA, nWp, lpStruct);} 7、写入本进程主窗口句柄
public void WriteHwnd(IntPtr hwnd){const int MaxPath 260;StringBuilder builder new StringBuilder(MaxPath);SHGetFolderPath(IntPtr.Zero, (int)CSIDL_APPDATA, IntPtr.Zero, 0x0000, builder);string path builder.ToString() \\kuaileketang;Directory.CreateDirectory(path);path \\hWnd.ini;string text String.Format({0}, hwnd);WritePrivateProfileString(Wnd, hWnd, text, path);读取校内外窗口句柄StringBuilder temp new StringBuilder(256);int i GetPrivateProfileString(Wnd, hParent, 0, temp, 256, path);string xnwHwndStr temp.ToString();m_hxnwHWND int.Parse(xnwHwndStr);if (true)SendXnwMessage(m_hxnwHWND, ); //若有环境则发送空信息elseSendXnwMessage(m_hxnwHWND, www.biying.com); //若没有环境则发送下载该环境所需的网址 }8、处理发来的交互消息
public void onCopyData(int msg, IntPtr wParam, IntPtr lParam){if (msg WM_COPYDATA){COPY_DATA copyData (COPY_DATA)Marshal.PtrToStructure(lParam, typeof(COPY_DATA));if (null ! copyData.lpData){int id (int)copyData.dwData;string jstr copyData.lpData;switch(id){case SubExe_EXIT:{UnsetHotkey();trayIcon.Dispose();Application.Exit();}break;}}}}
