Home How to use TVirtualStringTree AccessibleName or implement accessibility?
Reply: 0

How to use TVirtualStringTree AccessibleName or implement accessibility?

user1118 Published in March 18, 2018, 1:37 am

I can see that TVirtualStringTree has a property called AccessibleName yet, I don't see it working, that is, giving the string which is set to screen reader such as NVDA.

What I tried is setting this in the OnGetText event but that doesn't seem to produce any results (e.g. Sender->AccessibleName = "my node name";). All it reads is entire contents of the tree, not just a current node just the same as if I didn't make any change to the property, and if node is changed (using keyboard) it doesn't do anything.

What it should be reading is - Column name - column content - another column name - another column content etc. like it does with the regular TListView.

There seems to be an implementation of iAccessible interface here - https://github.com/Virtual-TreeView/Virtual-TreeView/blob/master/Source/VTAccessibility.pas

Can you share some example how to use VirtualTreeView built in accessibility to make the component readable to screen readers as it seems that such examples are really scarce?

You need to login account before you can post.

About| Privacy statement| Terms of Service| Advertising| Contact us| Help| Sitemap|
Processed in 0.238263 second(s) , Gzip On .

© 2016 Powered by mzan.com design MATCHINFO