Wie extrahiere ich das Symbol aus einer ClickOnce-Verknüpfung (.appref-ms)? ⇐ C#

[Guest]

In einer WPF-App versuche ich, das Symbol für eine ClickOnce-App (.appref-ms) abzurufen:
Ein Beispiel für den Inhalt einer ClickOnce-App-Verknüpfung (.appref- ms):

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http://mtgo.patch.daybreakgames.com/patch/mtg/live/client/MTGO.application#MTGO.application, Culture=neutral, PublicKeyToken=dbac2845cba5280e, processorArchitecture=msil
< /code>
Methoden, die bisher nicht erfolgreich waren: < /p>
[list]
[*]Icon.ExtractAssociatedIcon(filePath)

[*]

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SHGetFileInfo()

unter Verwendung der Flags SHGFI.ICONLOCATION und SHGFI.ICON.
[*]

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IShellItemImageFactory::GetImage()

[/list]
Beispielcode für iShellimageFactory:

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private BitmapSource GetIcon(string filePath, int size, ThumbnailOptions options, double scaleFactor)
{
IShellItem nativeShellItem;
Guid shellItem2Guid = new Guid(IShellItem2Guid);

int retCode = SHCreateItemFromParsingName(filePath, IntPtr.Zero, ref shellItem2Guid, out nativeShellItem);

if (retCode != 0)
throw Marshal.GetExceptionForHR(retCode);

NativeSize nativeSize = new NativeSize();
nativeSize.Width = (int) (size * scaleFactor);
nativeSize.Height = (int) (size * scaleFactor);

IntPtr hBitmap;
HRESULT hr = ((IShellItemImageFactory)nativeShellItem).GetImage(nativeSize, options, out hBitmap);

Marshal.ReleaseComObject(nativeShellItem);

if (hBitmap == IntPtr.Zero)
{
DeleteObject(hBitmap);
return null;
}

BitmapSource img = Imaging.CreateBitmapSourceFromHBitmap(hBitmap, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());

DeleteObject(hBitmap);

return img;
}

Was dieses Symbol zurückgibt:

< /P>