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stuartclennett@gmail.com
United Kingdom
72 Posts |
 Posted - Dec 05 2016 : 14:37:17
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Hi,
I'm testing image acquisition using a memory stick containing a DCIM folder.
Using your Acquisition Demo I get three entries in the devices list.
a) "WIA - F:\" - which lists the API as TWAIN, device type Unknown
b) "F:\" - which lists the API as WIA, device type Camera
c) "UDISK2" - which lists the API as DCIM (WPD presumably), device type False.
The problem I'm having is acquiring multiple images. If if use "WIA - F:\" (twain) then I get the "Get Pictures from" dialog and I can multi-select and all the images are acquired. (This still seems to screw up auto-rotation of the image btw)
If I use "F:\" (WIA) then I get the same "Get Pictures from" dialog, I can still multi-select, but only the first image is acquired (and there's no progress bar on the demo).
My users (currently just QA) are getting mightily confused by this and the different array of devices.
Thanks
Stuart
Stuart Clennett
Delphi Berlin 10.1 |
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xequte
38222 Posts |
Posted - Dec 06 2016 : 17:09:37
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Hi Stuart
Unfortunately Windows and vendors offer different API methods to access the same device. At this time ImageEn does not filter the acquisition list in any way.
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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stuartclennett@gmail.com
United Kingdom
72 Posts |
Posted - Dec 08 2016 : 10:38:15
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Hi Nigel,
Thanks for the info. I'm just a bit confused as to why the exact same camera UI will acquire multiple images on one driver selection, but won't on another selection (even though multi select is possible).
Just to be sure, are you saying this is a driver issue?
Thanks & sorry for my ignorance,
Stuart
Stuart Clennett
Delphi Berlin 10.1 |
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xequte
38222 Posts |
Posted - Dec 08 2016 : 14:32:34
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Hi Stuart
I'm not aware of any issues with our WIA API failing to retrieve multiple images. I will check this soon.
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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stuartclennett@gmail.com
United Kingdom
72 Posts |
Posted - Dec 13 2016 : 13:41:45
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Thanks Nigel.
Stuart
Stuart Clennett
Delphi Berlin 10.1 |
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xequte
38222 Posts |
Posted - Mar 07 2017 : 23:46:18
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Hi Stuart
I'm afraid I cannot find any issues when testing it on my system.
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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stuartclennett@gmail.com
United Kingdom
72 Posts |
Posted - Mar 08 2017 : 04:08:40
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Hi Nigel,
Thanks for testing this. Do you have any info/links that will help me figure out what actual drivers are installed on my o/s and how to upgrade?
Thanks
Stuart Clennett
Delphi Berlin 10.1 |
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Clarification needed on WIA devices please?
