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Date Posted: 18:14:17 04/06/00 Thu
Author: Michel
Subject: Re: Identify Image Format
In reply to: Rajan 's message, "Identify Image Format" on 09:58:02 04/06/00 Thu

Hi Rajan,

No, it is not possible to determine the format from the byte stream directly. You need to store this information in another field of your record.

Envision is based on the VCL framework, where each class derived from TGraphic (for example, Graphics.TBitmap, or EnTifGr.TTiffGraphic) is responsible to handle a particular file format. This does not allow identifying a format from the bytes of the format.

Best regards,


> I am loading the TImageScrollBox with the contents of
> a Blobfield. How do I know whether it is a BMP, JPG,
> TIF or something else. Is there a method to check?
> Thanks

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