public unsafe string ToString(ItemIdList pidl)
{
if (_pointer == IntPtr.Zero)
{
throw new ObjectDisposedException(nameof(ReturnString));
}
string result = null;
STRRET *s = (STRRET *)_pointer.ToPointer();
switch (s->uType)
{
case STRRET.STRRET_TYPE.STRRET_WSTR:
result = new string(s->Data.pOleStr);
break;
case STRRET.STRRET_TYPE.STRRET_CSTR:
// https://docs.microsoft.com/en-us/windows/desktop/api/shlwapi/nf-shlwapi-shansitounicode
throw new NotSupportedException();
case STRRET.STRRET_TYPE.STRRET_OFFSET:
// https://docs.microsoft.com/en-us/windows/desktop/api/shlwapi/nf-shlwapi-shansitounicode
throw new NotSupportedException();
default:
throw new InvalidOperationException();
}
return(result);
}
public unsafe override string ToString()
{
if (_pointer == IntPtr.Zero)
{
throw new ObjectDisposedException(nameof(ReturnString));
}
STRRET *s = (STRRET *)_pointer.ToPointer();
return((s->uType) switch
{
STRRET.STRRET_TYPE.STRRET_WSTR => new string(s->Data.pOleStr),
STRRET.STRRET_TYPE.STRRET_CSTR => throw new NotSupportedException(),
STRRET.STRRET_TYPE.STRRET_OFFSET => throw new NotSupportedException(),
_ => throw new InvalidOperationException()
});
public unsafe void Dispose()
{
if (_pointer == IntPtr.Zero)
{
throw new ObjectDisposedException(nameof(ReturnString));
}
STRRET *s = (STRRET *)_pointer.ToPointer();
if (s->uType == STRRET.STRRET_TYPE.STRRET_WSTR)
{
Marshal.FreeCoTaskMem((IntPtr)s->Data.pOleStr);
s->uType = STRRET.STRRET_TYPE.STRRET_CSTR;
s->Data.pOleStr = null;
}
_pointer = IntPtr.Zero;
}
public HRESULT GetDisplayNameOf([NativeTypeName("LPCITEMIDLIST")] ITEMIDLIST *pidl, [NativeTypeName("SHGDNF")] uint uFlags, STRRET *pName)
{
return(((delegate * unmanaged <IShellFolder2 *, ITEMIDLIST *, uint, STRRET *, int>)(lpVtbl[11]))((IShellFolder2 *)Unsafe.AsPointer(ref this), pidl, uFlags, pName));
}
