static void SaveImage(
ImageHelpers.IWICBitmap bitmap,
string filename,
ImageFormat format)
{
if (bitmap == null)
{
throw new ArgumentNullException(paramName: nameof(bitmap), message: "bitmap cannot be null.");
}
if (filename == null)
{
throw new ArgumentNullException(paramName: nameof(filename), message: "filename cannot be null.");
}
var imagingFactory = ImageHelpers.WIC.CreateImagingFactory();
var stream = imagingFactory.CreateStream();
stream.InitializeFromFilename(wzFileName: filename, dwDesiredAccess: ImageHelpers.GenericAccessRights.GENERIC_WRITE);
var encoder = imagingFactory.CreateEncoder(guidContainerFormat: ImageHelpers.GetContainerFormat(format: format), pguidVendor: null);
encoder.Initialize(pIStream: stream, cacheOption: ImageHelpers.WICBitmapEncoderCacheOption.WICBitmapEncoderNoCache);
ImageHelpers.IWICBitmapFrameEncode ppIFrameEncode = null;
var encoderOptions = new ImageHelpers.IPropertyBag2[1];
encoder.CreateNewFrame(ppIFrameEncode: out ppIFrameEncode, encoderOptions: encoderOptions);
ppIFrameEncode.Initialize(pIEncoderOptions: encoderOptions[0]);
ppIFrameEncode.WriteSource(pIBitmapSource: bitmap, prc: null);
ppIFrameEncode.Commit();
encoder.Commit();
Marshal.ReleaseComObject(o: stream);
Marshal.ReleaseComObject(o: encoder);
Marshal.ReleaseComObject(o: ppIFrameEncode);
}
static ImageHelpers.IWICBitmap ClipImage(
ImageHelpers.IWICBitmap bitmap,
RectangleI rectangle)
{
var prc = new ImageHelpers.WICRect();
prc.X = rectangle.X;
prc.Y = rectangle.Y;
prc.Width = rectangle.Width;
prc.Height = rectangle.Height;
var imagingFactory = ImageHelpers.WIC.CreateImagingFactory();
var bitmapClipper = imagingFactory.CreateBitmapClipper();
bitmapClipper.Initialize(pISource: bitmap, prc: prc);
var bitmapFromSource = imagingFactory.CreateBitmapFromSource(pIBitmapSource: bitmapClipper, option: ImageHelpers.WICBitmapCreateCacheOption.WICBitmapNoCache);
Marshal.ReleaseComObject(o: bitmapClipper);
return(bitmapFromSource);
}
