I am trying to use NSAccessibility API to query the content UI element. For example the string from Safari URL Text Field
I have been experimenting AXUIElementRef API
I have a Test Application
1: monitoring NSWorkspaceDidLaunchApplicationNotification
>>
NSWorkspace *workspace = [NSWorkspace sharedWorkspace];
/* Register for application launch notifications */
[[workspace notificationCenter] addObserver:self
selector:@selector(applicationLaunched:)
name:NSWorkspaceDidLaunchApplicationNotification
object:workspace];
>>
2:
In the applicationLaunched selector
2.1:
It checksNSApplicationBundleIdentifier = "com.apple.Safari";
2.2:
Then it uses
NSNumber *pidNumber =[[notification userInfo] valueForKey:@"NSApplicationProcessIdentifier"];
to get pid.
2.3:
Next, from the pid, it uses
AXUIElementRef element = AXUIElementCreateApplication(pid);
to get an AXUIElementRef
2.4:
When I trying to copy out the attribute from the AXUIElementRef element
i.e.
CFArrayRef arrayRefSys;
AXError e = AXUIElementCopyAttributeNames(element, &arrayRefSys);
I always get kAXErrorCannotComplete error.
P.S.:
And I validated from
NSDictionary *options = @{(__bridge id) kAXTrustedCheckOptionPrompt : @YES};
BOOL accessibilityEnabled = AXIsProcessTrustedWithOptions((__bridge CFDictionaryRef) options);
I could confirm that accessibilityEnabled is YES in my test App.
I wonder if someone happen to familiar with this topic?
Thanks.
