C++使用指定的程序打开指定的文件

BOOL OpenFileEx(CString strAppPath, CString strFilePath, CString& strError)
{
if(strAppPath.IsEmpty() || strFilePath.IsEmpty())
{
strError = _T("application path or file path is empty");
return FALSE;
}

CString strCmd;
strCmd.Format(_T("\"%s\" \"%s\""), strAppPath, strFilePath);


SECURITY_ATTRIBUTES sa;
HANDLE hRead,hWrite;
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
if (!CreatePipe(&hRead, &hWrite, &sa, 0))
{
strError = _T("create pipi fail.");
return FALSE;
}

STARTUPINFO si;
PROCESS_INFORMATION pi;
si.cb = sizeof(STARTUPINFO);
GetStartupInfo(&si);
si.hStdError = hWrite;
si.hStdOutput = hWrite;
si.wShowWindow = SW_HIDE;