public static void Save(this IWICImagingFactory factory, IWICBitmapSource imageSource, string fileName)
{
if (factory == null)
{
throw new ArgumentNullException("factory");
}
if (imageSource == null)
{
throw new ArgumentNullException("imageSource");
}
if (fileName == null)
{
throw new ArgumentNullException("fileName");
}
string extension = Path.GetExtension(fileName);
if (string.IsNullOrEmpty(extension))
{
throw new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, "File name '{0}' does not have an extension so encoder type can not be determined.", new object[]
{
fileName
}));
}
Guid encoderId;
if (extension.Equals(".jpg", StringComparison.OrdinalIgnoreCase) || extension.Equals(".jpeg", StringComparison.OrdinalIgnoreCase))
{
encoderId = WicGuids.GUID_ContainerFormatJpeg;
}
else if (extension.Equals(".png", StringComparison.OrdinalIgnoreCase))
{
encoderId = WicGuids.GUID_ContainerFormatPng;
}
else if (extension.Equals(".bmp", StringComparison.OrdinalIgnoreCase))
{
encoderId = WicGuids.GUID_ContainerFormatBmp;
}
else
{
if (!extension.Equals(".tiff", StringComparison.OrdinalIgnoreCase))
{
throw new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, "File name '{0}' has extension {1} which we can't handle.", new object[]
{
fileName,
extension
}));
}
encoderId = WicGuids.GUID_ContainerFormatTiff;
}
IWICStream iwicstream;
factory.CreateStream(out iwicstream);
iwicstream.InitializeFromFilename(fileName, GenericAccess.GENERIC_WRITE);
factory.Save(imageSource, iwicstream, encoderId);
GraphicsInteropNativeMethods.SafeReleaseComObject(iwicstream);
}
public static void Save(this IWICImagingFactory factory, IWICBitmapSource imageSource, Stream destinationStream, Guid encoderId)
{
if (factory == null)
{
throw new ArgumentNullException("factory");
}
if (imageSource == null)
{
throw new ArgumentNullException("imageSource");
}
if (destinationStream == null)
{
throw new ArgumentNullException("destinationStream");
}
IWICStream iwicstream;
factory.CreateStream(out iwicstream);
iwicstream.InitializeFromIStream(new StreamWrapper(destinationStream));
factory.Save(imageSource, iwicstream, encoderId);
GraphicsInteropNativeMethods.SafeReleaseComObject(iwicstream);
}