重定向标准输出错误输出到编辑控件中！

来源：互联网发布：怎样才能加入淘宝客编辑：程序博客网时间：2024/05/14 06:15

有时候我们需要重定向标准输出（stdout)错误输出(stderr)到编辑控件中：

比如我们作了一个前端编译器，编译的功能由mingw gcc来完成，这时我们要捕获它的编译消息到我们的输出窗口，这时怎么办呢！

很简单，我们需要用匿名管道来实现，参见如下代码：

SECURITY_ATTRIBUTES g_sa = {sizeof(SECURITY_ATTRIBUTES),NULL,TRUE};void CGccDbgView::OnCompiler() {// TODO: Add your control notification handler code hereHANDLE hWritePipe, hReadPipe;if ( !CreatePipe( &hReadPipe, &hWritePipe, &g_sa, 0 ) ){return;}CString strCmdLine="c:\\gcc.exe test.c";// create an environment for the CGI process....DWORD dwCreateFlags = 0;PROCESS_INFORMATION pi;STARTUPINFO si = {0};si.cb = sizeof(si);si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;si.wShowWindow = SW_HIDE;si.hStdInput = hReadPipe;si.hStdOutput = hWritePipe;si.hStdError = hWritePipe;BOOL bOk = CreateProcess( NULL, strCmdLine.GetBuffer(1),NULL, NULL, TRUE,dwCreateFlags, NULL,"c:\\", &si, &pi );strCmdLine.ReleaseBuffer();// if created....if ( bOk ){char buffer[1024]={0};// wait for either cancel or process done....WaitForSingleObject(pi.hProcess,INFINITE);// release our hold on the thread....CloseHandle( pi.hThread );// send the body of the post to the stdin....DWORD dwWritten = 0;ReadFile( hReadPipe, buffer,1024,&dwWritten, NULL );m_msg = buffer;//AfxMessageBox(m_msg);UpdateData(FALSE);// close our hold on it....CloseHandle( pi.hProcess );}}

这里m_msg属于编辑器控件变量。这样我们就能在编辑控件中看到结果了。如图：