Multi page Tiff editing

[JensN]

We have an Image viewer which consists of a GdViewer and a ThumbailEx.
We load all files (JPEG or TIFF) by using:

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int imageId = gdPictureImage.CreateGdPictureFromStream(memoryStream);
gdViewer.DisplayFormGdPictureImage(imageId);
thumbnailEx.LoadFromGdViewer(gdViewer);

This works fine so far.
The problem starts if we want to edit one of the pages.
Therefor we use the following code:

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gdPictureImage.Rotate(imageId, RotateFlipType.xxx);
gdViewer.Redraw();
thumbnailEx.RedrawItem(gdPictureImage.TiffGetCurrentPage(imageId) - 1);

After the call the image in the viewer is rotated.
But the thumbnailEx seems to be disconnected from the GdViewer. Suddenly the first page is focused and the selected page is no longer shown in the GdViewer.

Thanks in Advance!
Jens

[JensN]

Can anyone help? We didn't found a solution so far...

[Loïc]

Hi,

Before:

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int imageId = gdPictureImage.CreateGdPictureFromStream(memoryStream);

You must add:

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gdPictureImage.TiffOpenMultiPageForWrite()

Let me know if the problem persists.

Kind regards,

Loïc

[JensN]

Hi Loïc,

thank you very much.
After adding this line of code everything works fine.

Thanks again,

Jens

[Loïc]

Ok perfect !

Thank you for the return.

Kind regards,

Loïc