| Hi Avi,
It sounds like you probably need the C Accessibility API. You'll probably want to do something like this (note I haven't compiled this so there may be bugs):
CGFloat x = //get the x co-ordinate of the UI element from the left of the screen CGFloat y = //get the y co-ordinate of the UI element from the top of the screen
AXUIElementRef element; AXError error = AXUIElementCopyElementAtPosition(AXUIElementCreateSystemWide(), x, y, &element);
if (error == kAXErrorSuccess) { CFTypeRef value; error = AXUIElementCopyAttributeValue(element, kAXDescriptionAttribute, &value); if (error == kAXErrorSuccess) { NSString *description = (NSString *)value; } }
For more information, if you search for accessibility in the Xcode documentation window, the top result in the title search is usually "Accessibility (ApplicationServices/HIServices) Reference" which is the API reference for the Accessibility APIs.
Martin On 23 Dec 2009, at 5:15 am, Avi Drissman wrote: OK, but I need to know the old value. It's a token that I run through my strings table to get the new value to set (so we only need one nib). If I can't retrieve the value I'm really stuck.
Avi
On Tue, Dec 22, 2009 at 6:41 PM, Mike Engber <email@hidden> wrote:
On Dec 22, 2009, at 1:44 PM, Avi Drissman wrote:
Ugh. But if I mouse over it, Accessibility Inspector shows me the value I set from the nib and can't access from the code.
Where does that value live? How can I get at it from the code? I feel like I'm missing something fundamental here.
- (BOOL)accessibilitySetOverrideValue:(id)value forAttribute:(NSString *)attribute;
Attributes created/modified this way are sort of snuck in and are only available through the AX calls - i.e. the API used by assistive apps.
If you need to modify the value programatically, you can call accessibilitySetOverrideValue.
-ME
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