Re: Are notifications supported from the sys wide object?
Re: Are notifications supported from the sys wide object?
- Subject: Re: Are notifications supported from the sys wide object?
- From: Christiaan Hofman <email@hidden>
- Date: Fri, 7 Aug 2009 11:35:06 +0200
On Aug 7, 2009, at 3:48 AM, aaron smith wrote:
Hey All,
Quick question. I'm getting into notifications from the accessibility
api. I noticed that the AXObserverCreate requires a pid_t for an
application. Is it the pid of the application that I want
notifications from, or the application that the code is running in (so
like the the pid of my running app).
Quote from the documentation on this function: "Creates a new observer
that can receive notifications from the specified application."
Christiaan
This was starting to lead me to believe that you can't register for
notifications from the AXUIElementCreateSystemWide() element? For
example If I wanted to listen for the
NSAccessibilityFocusedWindowChangedNotification.
In general, this is how I am thinking the observers go down:
AXUIElementRef sys = AXUIElementCreateSystemWide();
void mycallback(AXObserverCallback callbk) {
//handle notification
}
AXObserverRef observer;
AXObserverCreate(?, (void *)mycallback,&observer);
AXObserverAddNotification(observer,sys,
NSAccessibilityFocusedWindowChangedNotification,NULL);
Thank you! much appreciated.
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