Thanks for that. I don't need to worry about anything below jaws 18, so will
give it a go.
-----Original Message-----
From: jawsscripts-bounce@xxxxxxxxxxxxx
[mailto:jawsscripts-bounce@xxxxxxxxxxxxx] On Behalf Of Doug Lee
Sent: Tuesday, 18 April 2017 12:19 PM
To: jawsscripts@xxxxxxxxxxxxx
Subject: [jawsscripts] Re: UIA getting colour
A tricky business in the presence of high-DPI laptops, and doubly so if you
have to support old JAWS versions; but...
The UIAScriptAPI provides a BoundingRectangle() method on elements. Use that,
then pick points inside that space to test for color. Beware though:
- The returned rectangle is 0-based, but getColorAtPoint() is 1-based.
- Pixel color tests are quite time-consuming on modern machines and Windows
versions. I suggest trying to limit your tests to one or two pixels whenever
possible.
I think DPI scaling issues are handled correctly by JAWS 17 and 18, not sure
about 16. 15 and older may yield incorrect rectangle coordinates in some cases
if I am not mistaken.
On Tue, Apr 18, 2017 at 01:33:30AM +0000, Nick Allan wrote:
Hi all
Is there any way using UIA to get the color of an object?
I've got some buttons that change their color to indicate if the function is
active or not. Any suggestions welcome on the best way to test for color of a
UIA object. The jaws cursor isn't able to see these controls.
Nick
Nick Allan
Access Technology Technical Lead
Business Transformation
Vision Australia
454 Glenferrie Rd Kooyong VIC 3144
T: 03 9864 9293 (I: 341293)
E: Nick.Allan@xxxxxxxxxxxxxxxxxxx
www.visionaustralia.org
[Vision Australia. Blindness. Low Vision. Opportunity. - logo]
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Islander peoples are recognised, acknowledged and respected.
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