Problem using AddImageFromStream

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   Hi,
I need some help using AddImageFromStream.

At the moment i have the following.

 PDFLibrary.InsertPages(1, 1);
 PDFLibrary.SetPageSize('A4');
 imageid := PDFLibrary.AddImageFromStream(IMGStream, 0);
 PDFLibrary.SelectImage(imageidd);
 horz := PDFLibrary.ImageWidth;
 vert:= PDFLibrary.ImageHeight;
 PDFLibrary.SetOrigin(1);
 PDFLibrary.DrawImage(0, 0, horz, vert);
 PDFLibrary.ReleaseImage(imageid);

the problem is with "imageid := PDFLibrary.AddImageFromStream(IMGStream, 0);". It keeps returning 0, so something goes wrong with adding the image. And the result is a blanco pdf file.

If i save the stream i get a perfect image, so i assume its correctly inserted into the stream i'm using.

Can anyone help me with this?

Thanks in advance

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Brummos Members Profile Find Members Posts Beginner Joined: 22 Mar 16 Status: Offline Points: 3	Post Options Post Reply Quote Brummos Report Post Thanks(0) Quote Reply Topic: Problem using AddImageFromStream Posted: 22 Mar 16 at 10:36AM
	Hi, I need some help using AddImageFromStream. At the moment i have the following. PDFLibrary.InsertPages(1, 1); PDFLibrary.SetPageSize('A4'); imageid := PDFLibrary.AddImageFromStream(IMGStream, 0); PDFLibrary.SelectImage(imageidd); horz := PDFLibrary.ImageWidth; vert:= PDFLibrary.ImageHeight; PDFLibrary.SetOrigin(1); PDFLibrary.DrawImage(0, 0, horz, vert); PDFLibrary.ReleaseImage(imageid); the problem is with "imageid := PDFLibrary.AddImageFromStream(IMGStream, 0);". It keeps returning 0, so something goes wrong with adding the image. And the result is a blanco pdf file. If i save the stream i get a perfect image, so i assume its correctly inserted into the stream i'm using. Can anyone help me with this? Thanks in advance

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3530	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 22 Mar 16 at 11:18AM
	Hi Brummos, so the image data isn't valid. It would be more helpful posting the code snippet which builds the stream. Perhaps then it's possible to find the error. BTW: It's not necessary to insert a first blank page for creation because for first creation a blank page is as default already inside ;-) Cheers and welcome here, Ingo
	Cheers, Ingo

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3530	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 22 Mar 16 at 11:22AM
	perhaps it's only the stream-position. It have to be set to 0 before. Cheers, Ingo
	Cheers, Ingo

Brummos Members Profile Find Members Posts Beginner Joined: 22 Mar 16 Status: Offline Points: 3	Post Options Post Reply Quote Brummos Report Post Thanks(0) Quote Reply Posted: 22 Mar 16 at 11:23AM
	Hi, thanks for your help! you answer already helped me since it made me figure out why the stream was wrong. the stream was fflled with a pdf and not an image like tiff. as soon as i stored the stream with tiff it started working. thanks!