public static IWICBitmapDecoder CreateDecoderFromFileHandle(this IWICImagingFactory imagingFactory, IntPtr hFile, WICDecodeOptions metadataOptions, Guid?pguidVendor = null)
{
using (var pguidVendorPtr = CoTaskMemPtr.From(pguidVendor))
{
return(imagingFactory.CreateDecoderFromFileHandle(hFile, pguidVendorPtr, metadataOptions));
}
}
public static IComObject <IWICBitmapDecoder> CreateDecoderFromFileHandle(this IWICImagingFactory factory, IntPtr handle, Guid?guidVendor = null, WICDecodeOptions metadataOptions = WICDecodeOptions.WICDecodeMetadataCacheOnDemand)
{
if (factory == null)
{
throw new ArgumentNullException(nameof(factory));
}
using (var guid = new ComMemory(guidVendor))
{
factory.CreateDecoderFromFileHandle(handle, guid.Pointer, metadataOptions, out var value).ThrowOnError();
return(new ComObject <IWICBitmapDecoder>(value));
}
}