public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
ImageSource ret = null;
var iconInfo = (IconLoadInfo)value;
if (iconInfo.IsLoadComplete)
{
return(iconInfo.CachedValue);
}
try
{
if (iconInfo.IsDesktopApp)
{
if (!string.IsNullOrWhiteSpace(iconInfo.IconPath))
{
var iconPath = new StringBuilder(iconInfo.IconPath);
int iconIndex = Shlwapi.PathParseIconLocationW(iconPath);
if (iconIndex != 0)
{
ret = IconUtils.GetIconAsImageSourceFromFile(iconPath.ToString(), iconIndex);
}
else
{
using (var icon = System.Drawing.Icon.ExtractAssociatedIcon(iconInfo.IconPath))
{
ret = icon.ToImageSource();
}
}
}
}
else
{
var bitmap = new BitmapImage();
bitmap.BeginInit();
bitmap.CacheOption = BitmapCacheOption.OnLoad;
bitmap.UriSource = new Uri(iconInfo.IconPath);
bitmap.EndInit();
ret = bitmap;
}
}
catch (Exception ex)
{
Trace.WriteLine($"Failed to load icon: {ex}");
}
iconInfo.IsLoadComplete = true;
iconInfo.CachedValue = ret;
return(ret);
}