格式化

[c++]代码库

UINT CFormatDisk::CMDFormat()
{
	// 格式化命令行
	m_strCMD.Format(_T("format.com %c:/fs:FAT32/q/v:%s/y"), m_cLetter, m_strLable);
	SECURITY_ATTRIBUTES sa;
	HANDLE hRead,hWrite;

	//创建管道
	sa.nLength = sizeof(SECURITY_ATTRIBUTES);
	sa.lpSecurityDescriptor = NULL;
	sa.bInheritHandle = TRUE;
	if (!CreatePipe(&hRead,&hWrite,&sa,0)) 
	{
		return -1;
	} 

	//创建子进程
	STARTUPINFO si;
	PROCESS_INFORMATION pi = {0}; 
	si.cb = sizeof(STARTUPINFO);
	GetStartupInfo(&si); 
	si.hStdError = hWrite;
	si.hStdOutput = hWrite;
	si.wShowWindow = SW_HIDE;
	si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
	if (!CreateProcess(NULL, m_strCMD.GetBuffer(), NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi)) 
	{			
		return -1;
	}
	m_strCMD.ReleaseBuffer();

	//关闭写管道句柄
	CloseHandle(hWrite);

	UINT uPos = 0;
	CString strInfo;


	//读取管道数据直到子程序结束
	char buffer[4097] = {0};
	DWORD dwReadSize = 0;
// 	while(true) 
// 	{
// 		if((ReadFile(hRead,buffer,4096,&dwReadSize,NULL) == NULL) || (dwReadSize == 0))
// 			break;
// 	}

	//获得程序返回值
	DWORD   dwExitCode = 0;
	GetExitCodeProcess(pi.hProcess, &dwExitCode);

	CloseHandle(pi.hProcess);
	CloseHandle(pi.hThread);

	return dwExitCode;
}