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Date Posted: 06:37:55 11/19/03 Wed
Author: Michel
Subject: Re: Size of Tiff file too large
In reply to: Douglas Stites 's message, "Size of Tiff file too large" on 09:48:31 11/17/03 Mon

Hi Doug,

It is probably because you are not using the same compression when saving. If you are save with the TImageScrollBox ( as opposed to using TTiffGraphic directly) you should use the ImageScrollBoxBeforeSave event to change the compression type before saving.

As an example, see ImageScrollBoxBeforeSave in the DemoForm.Pas example.

Best regards,


>I move pages from a multi-page tiff file (selectively)
>a Tiff file to another tiff file using a memory stream.
>The resultant file is 5 times bigger than the
>original. How could this be when I have fewer pages?
>Attached is a snippet of code I use.
>ImageScrollBox->LoadFromFile(FileName, page); //Open
>a tiff file
> if (OCRLineCount->Caption == "New Document")
> { Label4->Caption="Saving document";
> if (ms == NULL || page == 1) return;
> AnsiString filename = GetNextFilename();
> if (FileExists(filename))
> //-----------------------------------------------save
>to Tiff file
> ms->SaveToFile(filename);
> PostNewFilename(filename);
> delete ms;
> ms = NULL;
> }
> else
> {//----------------------------this is where we
>save tif to stream
> if (ms == NULL)
> { ms = new TMemoryStream();
> ImageScrollBox->SaveToStream(ms,"tif");
> }
> else
> ImageScrollBox->AppendToStream(ms,"tif");
> }
>Thanks in advance

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