Forum 'VintaSoft Annotation .NET Plug-in Discussions'

Hi Alex,

I'm not sure if I have found some inconsistencies in the codebase or if it's just a misunderstanding on my part. Can you please have a look and tell me if I'm doing something wrong?

The problems I have been having are related to how the VintasoftImage and ImageViewerBase.Images[x] objects work together.

1. Saving images using BaseEncoder

EncoderBase encoder = null;
... //do some work to instantiate encoder as PdfEncoder or TiffEncoder and set compression

This works for single images:

VintasoftImage img = imageViewer1.Images[i] as VintasoftImage;
img.Save(fullPath, encoder);

But it doesn't for collections:

imageViewer1.Images.Save(fullPath, encoder);

- won't compile, method signature not recognised despite it being valid as far as Intellisense is concerned.

You have to cast it instead:

imageViewer1.Images.Save(fullPath, (PdfEncoder)encoder);

Why is this the case?

2. Saving images with annotations

A similar thing happens when saving images with annotations. This code saves images and annotations together in a multipage TIFF:

imageViewer1.Images.Save(fullPath, (TiffEncoder)encoder);

But this code for a single image doesn't save annotations:

VintasoftImage img = imageViewer1.Images[i] as VintasoftImage;
img.Save(fullPath, encoder);

Thanks.

Ian

OK, thanks for the clarification about the difference between ImageCollection and the VintasoftImage. However, I'm not sure why this would cause the inconsistencies I have detailed above.

1. Why do you have to cast the BaseEncoder when saving the ImageCollection but you don't have to cast the BaseEncoder when you save the VintaSoft image, despite them having the same method signatures?
2. Why is it that when you save a multipage Tiff via the ImageCollection, the annotations are ALWAYS saved, but when you save the VintasoftImage they are not - you have to save them separately?

Also, is there any way you can save an annotated multipage Tiff as separate XMP and TIF files?

Thanks for all your help Alex!

Ian