hi there!
I just develop a new file format and the associated WIC codec.
Now I'm trying to develop the paint.NET File Type plugins to open and SAVE in my format into PDN.
I succeed to open an image in PDN with the function onLoad :
protected override Document OnLoad(Stream input)
{
try
{
BitmapSource bitmapSourcetest = null;
MemoryStream imageStream = null;
BitmapCreateOptions createOptions = BitmapCreateOptions.PreservePixelFormat | BitmapCreateOptions.IgnoreColorProfile;
BitmapDecoder myDecoder = BitmapDecoder.Create(input, createOptions, BitmapCacheOption.None);
if (myDecoder.Frames[0] != null)
{
bitmapSourcetest = myDecoder .Frames[0];
}
//Save the image in a Memory stream
System.Windows.Media.Imaging.BmpBitmapEncoder bmpEncoder = new System.Windows.Media.Imaging.BmpBitmapEncoder();
bmpEncoder.Frames.Add(System.Windows.Media.Imaging.BitmapFrame.Create(bitmapSourcetest));
imageStream = new MemoryStream();
bmpEncoder.Save(imageStream);
Bitmap b = new System.Drawing.Bitmap(imageStream);
myContainerFormat = myDecoder.CodecInfo.ContainerFormat;
return Document.FromImage(;
}
catch
{
MessageBox.Show("Problem Importing File");
Bitmap b = new Bitmap(500, 500);
return Document.FromImage(;
}
}
BitmapDecoder.Create creates the decoder by calling the wic dll. and myContainerFormat gives me the correct GUID container format.
Now it's getting more complicated with the method onSave.
I try this code :
protected override void OnSave(Document input, Stream output, SaveConfigToken token, Surface scratchSurface, ProgressEventHandler callback)
{
myEncoder = BitmapEncoder.Create(myContainerFormat);
myEncoder.Save(output);
/*using (RenderArgs ra = new RenderArgs(scratchSurface))
{
input.Render(ra, true);
ra.Bitmap.Save(output, ImageFormat.Bmp);
}*/
}
I can't create the encoder based on my wic dll it always return an UnknownBitmapEncoder.
Anyone as a clue on using the WIC with PDN ????
Thanks for answers.
Mike
