VC++之線程和進(jìn)程之用郵槽實(shí)現(xiàn)進(jìn)程間通信

1、 3/3VC+之線程和進(jìn)程之用郵槽實(shí)現(xiàn)進(jìn)程間通信 一、創(chuàng)建應(yīng)用工程 1、創(chuàng)建單文檔應(yīng)用程序工程 2、添加新單文檔應(yīng)用程序工程 二、編輯菜單項(xiàng) 1、編輯Thread工程之菜單項(xiàng) 2、編輯Child工程之菜單項(xiàng) 三、添加消息響應(yīng)函數(shù) a、為CThreadView類添加菜單消息響應(yīng)函數(shù) b、為CChildView類添加菜單消息響應(yīng)函數(shù) 四、添加代碼 1、為CThreadView類添加消息響應(yīng)函數(shù)代碼 void CThreadView:OnReceive() / TODO: Add your command handler code here HANDLE mailslot; mailslot=Cre

2、ateMailslot(.mailslotmymailslot,0,MAILSLOT_WA IT_FOREVER,NULL); /創(chuàng)建郵槽 if(INVALID_HANDLE_VALUE=mailslot) MessageBox(Create fail); CloseHandle(mailslot); return; char buf100; DWORD dwread; ReadFile(mailslot,buf,100, /讀文件 MessageBox(buf); CloseHandle(mailslot); 2、為CChildView類添加消息響應(yīng)函數(shù)代碼 void CChildView:

3、OnSend() / TODO: Add your command handler code here HANDLE mailslot; mailslot=CreateFile(.mailslotmymailslot,GENERIC_WRITE,FIL E_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL); if(INVALID_HANDLE_VALUE=mailslot) MessageBox(Open fail); CloseHandle(mailslot); return; char buf=你好,長江!; DWORD d

4、wwrite; WriteFile(mailslot,buf,strlen(buf)+1, CloseHandle(mailslot); 五、編譯 六、運(yùn)行 七、函數(shù)說明 1、CreateMailslot()函數(shù)聲明 HANDLE CreateMailslot(LPCTSTR lpName,DWORD nMaxMessageSize,DWORD lReadTimeOut,LPSECURITY_ATTRIBUTES lpSecurityAttributes) 功能：創(chuàng)建一個(gè)郵槽。函數(shù)調(diào)用成功，返回郵槽句柄；否則，返回INVALID_HANDLE_VALUE。 2、CreateFile()函數(shù)聲明

5、 HANDLE CreateFile(LPCTSTR lpFileName,DWORD dwDwsiredAccess,DWORD dwShareMode,LPSECURITY_ATTRIBUTES lpSecurityAttributes,DWORD dwCreationDispostion,DWORD dwFlagsAndAttributes,HANDLE hTemplateFile ) 功能：創(chuàng)建或打開一個(gè)文件、通信資源、磁盤驅(qū)動器等。 3、ReadFile()函數(shù)聲明 BOOL ReadFile(HANDLE hFile,LPVOID lpBuffer,DWORD nNumberOfBytesRead,LPDWORD lpNumberOfBytesRead,LPOVERLAPPED lpOverlapped) 功能：從一個(gè)文件中文件指針位置開始讀取數(shù)據(jù)。成功，返回非零值；失敗，返回零。 4、WriteFile()函數(shù)聲明 BOOL WriteFile(HANDLE hFile,LPVOID lpBuffer,DWORD nNumberOfBytesToWrite,LPDWORD