/// <summary>
/// 检查文件夹是否被占用，返回占用的文件名
/// </summary>
/// <param name="directoryInfo">文件夹</param>
/// <param name="fileName">返回被占用的文件名</param>
/// <returns>文件夹占用返回true,否则返回false</returns>
public static bool CheckDirectoryIsUsed(DirectoryInfo directoryInfo, out string fileName)
{
fileName = string.Empty;
if (null == directoryInfo || false == directoryInfo.Exists)
{
return(false);
}
FileInfo[] files = directoryInfo.GetFiles("*.*", SearchOption.AllDirectories);
IntPtr hWndPtr;
foreach (FileInfo file in files)
{
hWndPtr = APIHelper._lopen(file.FullName, OF_READWRITE | OF_SHARE_DENY_NONE);
if (hWndPtr == HFILE_ERROR)
{ //错误的话，不会占用
fileName = file.FullName;
return(true);
}
APIHelper.CloseHandle(hWndPtr);
}
return(false);
}