How to know is the file exist in C++ - 在C++中如何判断文件是否存在

void CPrjCFileTestDlg::OnbtnFileIsExist() 
{
	// TODO: Add your control notification handler code here
	FileIsExist("c://aaaa.txt");
	FileIsExist("c://prjSendMail.ini");
}

bool CPrjCFileTestDlg::FileIsExist(LPCTSTR szFileFullPathName)
{
	WIN32_FIND_DATA Win32_Find_Data;
	HANDLE hFindFile;

	hFindFile = FindFirstFile(szFileFullPathName,&Win32_Find_Data);

	if(INVALID_HANDLE_VALUE == hFindFile)
	{
		//AfxMessageBox("Not Exist");
		return false;
	}
	else
	{
		//AfxMessageBox("Have Exist");
		FindClose(hFindFile);
		return true;
	}
}