private static IntPtr?_GetHBitmapThumbnail(string fileName, int width, int height, ThumbnailOptions options)
{
const int HR_OK = 0;
var nativeShellItem = Shell32.CreateItemFromName(fileName);
if (nativeShellItem == null)
{
return(null);
}
int hr;
IntPtr hBitmap;
try
{
var nativeSize = new NativeSize {
Width = width, Height = height
};
hr = ((IShellItemImageFactory)nativeShellItem)
.GetImage(nativeSize, options, out hBitmap);
}
finally
{
Marshal.ReleaseComObject(nativeShellItem);
}
if (hr != HR_OK)
{
Log().Information("GetImage for {FileName} failed with {HRESULT}", fileName, hr);
return(null);
}
return(hBitmap);
}