public static void Generate(string path, string mimeType)
{
HostingEnvironment.QueueBackgroundWorkItem(cancellationToken =>
{
try
{
using (var f = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete))
using (var image = System.Drawing.Image.FromStream(f))
using (var file = File.Open(Path.Combine(BaseDirectory, Path.GetFileName(path)), FileMode.CreateNew, FileAccess.Write, FileShare.Read))
{
f.Seek(0, SeekOrigin.Begin);
var stream = new ThumbnailSharp.ThumbnailCreator()
.CreateThumbnailStream((uint)Math.Min(image.Width, ThumbnailSize), f, GetFormat(mimeType));
if (stream != null)
{
stream.CopyTo(file);
}
file.Flush();
}
}
catch
{
}
});
}
public static void Update(string path, string mimeType)
{
HostingEnvironment.QueueBackgroundWorkItem(cancellationToken =>
{
using (var f = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete))
using (var file = File.Open(Path.Combine(BaseDirectory, Path.GetFileName(path)), FileMode.Truncate | FileMode.OpenOrCreate, FileAccess.Write, FileShare.Read))
{
var stream = new ThumbnailSharp.ThumbnailCreator()
.CreateThumbnailStream(ThumbnailSize, f, GetFormat(mimeType));
if (stream != null)
{
stream.CopyTo(file);
}
file.Flush();
}
});
}