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handle icon exception

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This commit is contained in:
Paddy Xu
2017-12-21 22:15:11 +02:00
parent f0990faa56
commit 1bcfd8db08
2 changed files with 14 additions and 13 deletions
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4
QuickLook/Plugin/InfoPanel/InfoPanel.xaml.cs
View File

@@ -58,8 +58,8 @@ namespace QuickLook.Plugin.InfoPanel
(int) (128 * scale.Vertical),
ThumbnailOptions.ScaleUp);
var source = icon.ToBitmapSource();
icon.Dispose();
var source = icon?.ToBitmapSource();
icon?.Dispose();
Dispatcher.BeginInvoke(new Action(() => image.Source = source));
});

23
QuickLook/Plugin/InfoPanel/WindowsThumbnailProvider.cs
View File

@@ -56,6 +56,9 @@ namespace QuickLook.Plugin.InfoPanel
{
var hBitmap = GetHBitmap(Path.GetFullPath(fileName), width, height, options);
if (hBitmap == IntPtr.Zero)
return null;
try
{
// return a System.Drawing.Bitmap from the hBitmap
@@ -114,25 +117,23 @@ namespace QuickLook.Plugin.InfoPanel
private static IntPtr GetHBitmap(string fileName, int width, int height, ThumbnailOptions options)
{
IShellItem nativeShellItem;
var shellItem2Guid = new Guid(IShellItem2Guid);
var retCode = SHCreateItemFromParsingName(fileName, IntPtr.Zero, ref shellItem2Guid, out nativeShellItem);
var retCode = SHCreateItemFromParsingName(fileName, IntPtr.Zero, ref shellItem2Guid, out var nativeShellItem);
if (retCode != 0)
throw Marshal.GetExceptionForHR(retCode);
var nativeSize = new NativeSize();
nativeSize.Width = width;
nativeSize.Height = height;
var nativeSize = new NativeSize
{
Width = width,
Height = height
};
IntPtr hBitmap;
var hr = ((IShellItemImageFactory) nativeShellItem).GetImage(nativeSize, options, out hBitmap);
var hr = ((IShellItemImageFactory) nativeShellItem).GetImage(nativeSize, options, out var hBitmap);
Marshal.ReleaseComObject(nativeShellItem);
if (hr == HResult.Ok) return hBitmap;
throw Marshal.GetExceptionForHR((int) hr);
return hr == HResult.Ok ? hBitmap : IntPtr.Zero;
}
[ComImport]