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Date Posted: 17:44:50 01/08/02 Tue
Author: Michel
Subject: Re: CreateDibSection failed error
In reply to: Ruy 's message, "Re: CreateDibSection failed error" on 07:54:23 01/08/02 Tue


Hi Ruy,

I have not been able to reproduce this, and I have not found any memory leaks. There is one user who has sent me a potential improvement when running on a 256 color video mode. If this is happening on computers running in 256 colors, let me know, I can send you a modified version of EnDiGrph.Pas to test. Other than that, I have not found any workaround, other than using Win2000 which seems less prone to this error.

Best regards,

Michel


>Hi Michel,
>
>I have the same "CreateDibSection failed" error in my
>sistem in Win98 w/ Delphi 5 when scanning many times.
>I've seen that other users got the same problem.
>
>>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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