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 ImageEn Library for Delphi, C++ and .Net
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 Acquisition dialog opening behind form
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FabioDefferrari

Brazil
4 Posts

Posted - Jun 24 2024 :  11:04:46  Show Profile  Reply
Hi, Iím having a problem while calling the IO.Acquire method, when the acquisition dialog opens behind the form where the TImageEn object is placed.

As long as Iíve found out, is happens when the component is set to Visible=False

Any idea how to avoid that?

xequte

38319 Posts

Posted - Jun 24 2024 :  15:02:48  Show Profile  Reply
Hi Fabio

Does it only happen with a particular scanner driver, or all scanners called from that application?

Does it also happen in our demo applications, such as AllAcquire.dpr?

Nigel
Xequte Software
www.imageen.com
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FabioDefferrari

Brazil
4 Posts

Posted - Jun 25 2024 :  08:36:41  Show Profile  Reply
Hi, Nigel

I haven't tried with Twain, but in WIA scanners it always happen.

It doesn't happen in the Demo app, probably because the TImageEnMView component is set to Visible=True.

For now, I "solved" by setting Visible to True and setting Height/Width to 0 (zero), so the object isn't visible on form to the user. But I believe the "Visible" property shouldn't make a difference in the way the acquisition dialog is shown, right?
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xequte

38319 Posts

Posted - Jun 25 2024 :  16:10:26  Show Profile  Reply
Thanks Fabio,

We'll look into that shortly. Do you see the same issue if you use a TIEMultiBitmap instead of TImageEnMView?

e.g. multiBmp.MIO.Acquire();

http://www.imageen.com/help/TIEMultiBitmapHelper.MIO.html

Nigel
Xequte Software
www.imageen.com
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FabioDefferrari

Brazil
4 Posts

Posted - Jun 26 2024 :  12:50:35  Show Profile  Reply
Nigel, sorry for the question: to use MIO under TIEMultiBitmap, I should just add iexHelperFunctions in uses clause, right? Or do I have to do something else?

UPDATE: solved.
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xequte

38319 Posts

Posted - Jun 26 2024 :  23:49:33  Show Profile  Reply
Yes, sorry, should have mentioned that.

What happens with multiBmp.MIO.Acquire()?

Nigel
Xequte Software
www.imageen.com
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FabioDefferrari

Brazil
4 Posts

Posted - Jul 05 2024 :  13:25:34  Show Profile  Reply
Nigel

I ended up using TImageEnIO component instead of TImageEnMView, and it worked out fine.
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