/// <summary>
/// 清空回收站，这个方法同SHEmptyRecycleBin函数一样调用
/// </summary>
/// <param name="hwnd">在调用SHEmptyRecycleBin期间，指向用来显示的对话框的父窗体的句柄
/// 可为NULL值
/// </param>
/// <param name="rootpath">最大长度为260个字符的字符串，指定磁盘根目录或文件夹目录，可为null，则清空整个回收站的内容</param>
/// <param name="dwFlags">SHERB枚举，可组合使用</param>
/// <returns>成功返回0,否则为OLE定义的错误值</returns>
public uint EmptyRecycleBin(IntPtr hwnd, string rootpath, SHERB dwFlags)
{
_rbState rvs = new _rbState(hwnd, rootpath, dwFlags);
rvs.Revalue = 0x8000FFFF;
long size, items;
this.QuerySizeRecycleBin(out size, out items);
if (size == 0)
{
return(rvs.Revalue);
}
lock (rvs)
{
Thread t = new Thread(
new ParameterizedThreadStart(this.wrokThread));
t.SetApartmentState(ApartmentState.STA);
t.Start(rvs);
}
/* Console.WriteLine("aaa");测试了，同一个对象实例，依次调用EmptyRecycleBin
* 的任何一个重载，其顺序总是：先被调用的，总是先运行，后面的--排队等待
* 这样的原因是ewh是AUTO的，set之后，同样命名的对象就不会wait了
*/
this.ewh.WaitOne();
this.ewh.Reset();
return(rvs.Revalue);
}
internal _rbState(IntPtr hwnd, string rootpath, SHERB sherb)
{
this._hwnd = hwnd;
this._rootpath = rootpath;
this._sherb = sherb;
_rv = 0;
}
internal static extern Int32 SHEmptyRecycleBin ([MarshalAs(UnmanagedType.SysInt)]int windowHandleOwner, [MarshalAs(UnmanagedType.LPWStr)]String path, SHERB flags);
public static extern uint SHEmptyRecycleBinW(
IntPtr hwnd,
[In()]
[MarshalAs(UnmanagedType.LPWStr, SizeConst = 260)]
string rootpath,
SHERB flags);
/// <summary>
/// 清空回收站，这个方法同SHEmptyRecycleBin函数一样调用
/// </summary>
/// <param name="hwnd">在调用SHEmptyRecycleBin期间，指向用来显示的对话框的父窗体的句柄
/// 可为NULL值
/// </param>
/// <param name="rootpath">最大长度为260个字符的字符串，指定磁盘根目录或文件夹目录，可为null，则清空整个回收站的内容</param>
/// <param name="dwFlags">SHERB枚举，可组合使用</param>
/// <returns>成功返回0,否则为OLE定义的错误值</returns>
public uint EmptyRecycleBin(IntPtr hwnd, string rootpath, SHERB dwFlags)
{
_rbState rvs = new _rbState(hwnd, rootpath, dwFlags);
rvs.Revalue = 0x8000FFFF;
long size, items;
this.QuerySizeRecycleBin(out size, out items);
if (size == 0)
return rvs.Revalue;
lock (rvs)
{
Thread t = new Thread(
new ParameterizedThreadStart(this.wrokThread));
t.SetApartmentState(ApartmentState.STA);
t.Start(rvs);
}
/* Console.WriteLine("aaa");测试了，同一个对象实例，依次调用EmptyRecycleBin
的任何一个重载，其顺序总是：先被调用的，总是先运行，后面的--排队等待
* 这样的原因是ewh是AUTO的，set之后，同样命名的对象就不会wait了
*/
this.ewh.WaitOne();
this.ewh.Reset();
return rvs.Revalue;
}
internal void ReSetState(IntPtr hwnd, string rootpath, SHERB sherb)
{
this._hwnd = hwnd;
this._rootpath = rootpath;
this._sherb = sherb;
}
internal _rbState()
{
this._hwnd = IntPtr.Zero;
this._rootpath = null;
this._sherb = SHERB.SHERB_GENNERAL;
}
internal _rbState(IntPtr hwnd, string rootpath, SHERB sherb)
{
this._hwnd = hwnd;
this._rootpath = rootpath;
this._sherb = sherb;
_rv = 0;
}
SHEmptyRecycleBinW(
IntPtr hwnd,
[In()]
[MarshalAs(UnmanagedType.LPWStr, SizeConst = 260)]
string rootpath,
SHERB flags);
ReSetState(IntPtr hwnd, string rootpath, SHERB sherb)
{
this._hwnd = hwnd;
this._rootpath = rootpath;
this._sherb = sherb;
}
internal _rbState()
{
this._hwnd = IntPtr.Zero;
this._rootpath = null;
this._sherb = SHERB.SHERB_GENNERAL;
}