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 ImageEnMView not focusing correctly

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T O P I C    R E V I E W
john_siggy@yahoo.com Posted - Nov 29 2016 : 22:07:53
Thanks for your help. I am using a TImageEnMView and it seems to have a problem focusing sometimes. There is a third state between a thumbnail being selected and not selected. Two thumbnails are highlighed, one with the usual double line and the other just partially selected with one a one line border. Problem is intermittent. Any help would be appreciated.
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xequte Posted - Dec 06 2016 : 17:16:20
Hi John

See if you can create a simple demo that reproduces it but without video dependencies (e.g. by using a TTimer to reproduce the video refresh).


Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
john_siggy@yahoo.com Posted - Nov 30 2016 : 14:07:36
Thanks for getting back to me so promptly Nigel. My app has a ImageEnMView with thumbnails getting video refreshed 15 times a second. I have only one camera working so i have several blank thumbnails (black) and the one good thumbnail connected to a camera. Click into the "active" thumbnail and you sometimes have a problem maybe one out of 20 times. The new active thumbnail gets the focus and a red selection
rectangle of thickness 1. The thumbnail you are leaving still has the red section rectangle with a thickness of 2;

I changed the selection critereon EnableMultiSelect and got the same problem. What more can I change.

Regards...


John
xequte Posted - Nov 30 2016 : 04:40:01
Hi

Is it possible for you to advise the exact steps to reproduce the issue?

Also, does changing any of the selection properties affect it?


Nigel
Xequte Software
www.xequte.com
nigel@xequte.com