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Date Posted: 20:49:06 12/05/02 Thu
Author: Marcel
Subject: Re: TIFF Tag 278
In reply to: Marcel 's message, "Re: TIFF Tag 278" on 17:35:53 12/05/02 Thu

Hi Marcel,

Thanks for the update on this. I will do the change in EnTifGr.Pas for upcoming release.

Best regards,


>Actually I should make one clarification.
>FRowsPerStrip is defined as a LongInt not a LongWord
>(probably should be a LongWord if the spec mentions
>2^32-1). In testing I assigned MaxInt not 2^32-1 but
>this still worked fine (any fairly large number should
>work). I have ammended my copy of EnTifGr.pas to
>contain the following line:
>CDefaultRowsPerStrip = MaxInt;
>and that works fine.
>>I've just encountered a file that could be read fine
>>by Wang Imaging among other graphics apps but is not
>>read correctly by Envision. The tag 278 is missing and
>>Envision is defaulting to CDefaultRowsPerStrip (16).
>>According to the TIFF spec the default should be 2^32
>>- 1. I ran my app and when this error occured changed
>>the value to this in the debugger and the graphic
>>loaded fine. Why is CDefaultRowsPerStrip set to 16?

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