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Date Posted: 13:30:56 10/12/01 Fri
Author: Paul
Subject: Re: CreateDibSection failed error
In reply to: Greg 's message, "Re: CreateDibSection failed error" on 07:49:26 08/30/01 Thu

Hi Michel

Some of our clients are experiencing the same problem.

We use 3rd party scanning components and it seems after many scans we get this CreateDibSection failed message. I have been unable to reproduce the error in my programming enviroment. Typical scans are 24bit 8.5 x 11 @ 100 dpi.

Our scanning and display program is part of a very large Delphi Database Project. The following procedure is used to scan, view and save.

1: Scan/Viewer program created with main application.
2: Filename provided by main application.
3: Scan/Viewer show.
4: Scan image or images.
5: Save images as multi page Tiff
6: Scan/Viewer hide.
7: Restart at 2.

After repeating the above for many times we get the error which requires restarting the main application.

I attempt to create any graphic objects as needed and free these objects at hide time. I have tried MemProof and the only problem I see is possibly with some pointers being created and not released, memory seems fine.

One time on Win2000 someone got Virtual Memory Low etc.
Paul

>
>Hi Greg,
>
>I have seen this happen when relatively large images.
>On Win2K the error is much less frequent.
>
>In your case, does it happen after loading a large
>images (ie, a few thousand x a few thousand pixels) or
>simply after loading consecutive images?
>
>I have checked for resource leaks but have not found
>any with MemProof.
>
>Best regards,
>
>Michel
>
>>I've used TImageScrollBox as the main component in a
>>document imaging system indexing program. On some W9x
>>PCs after viewing a few dozen images the component
>>coughs up a "CreateDibSection failed" error and
>>TImageScrollBox goes black and will not load another
>>image. The program must be closed and restared. This
>>does not happen on the W2K PCs (well, not so far).
>>
>>Short of upgrading all the hardware and OS' in the
>>office does anyone have a solution/workaround/code
>>patch for this?
>>
>>Greg

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