Re: Cannot handle OnObjectFocus event in external csharp app

Yaling Liu via Scripting Tue, 01 Dec 2015 13:55:52 -0800

Hi Aaron, I cannot view the link, receiving HTTP 404 page not found error.

    On Tuesday, December 1, 2015 3:23 PM, Aaron Smith <[email protected]> 
wrote:

Take a gander through the class that we have that does work. Perhaps it 
will help. I pulled this from the project mentioned earlier:    
www.gwmicro.com/special/MyWindowEyes.cs    Thanks,    Aaron    -- Aaron Smith 
Web Development * App Development * Product Support Specialist Ai Squared * 725 
Airport North Office Park, Fort Wayne, IN 46825 260-489-3671 * 
www.aisquared.com    To insure that you receive proper support, please include 
all past correspondence (where applicable), and any relevant information 
pertinent to your situation when submitting a problem report to the Ai Squared 
Technical Support Team.    From: Yaling Liu [mailto:[email protected]]
Sent: Tuesday, December 1, 2015 3:16 PM
To: Aaron Smith <[email protected]>; Window-Eyes Scripting List 
<[email protected]>
Subject: Re: Cannot handle OnObjectFocus event in external csharp app    I 
tried it in DesktopWindow_OnChildActivate, where I know my specific app window 
becomes active, and I have the ChildWindow.Process. Still the same issue: the 
focus event is trapped, but the OnObjectFocus event handler is not invoked. Are 
there any specifics for how myMSAAEventSource should be obtained and 
howmyMSAAEventSource_OnObjectFocus should be defined?

       On Tuesday, December 1, 2015 10:45 AM, Aaron Smith 
<[email protected]> wrote:    Yes, that would be my guess. We have a custom 
app that blocks/hooks focus for a specific application. It hooks window focus, 
and when it finds a window that it wants to act upon, it does this:             
                                      myMSAAEventSource.Process = 
ChildWindow.Process;                                                 
blockedFocusEvent = 
myMSAAEventSource.BlockEvent(WindowEyes.MSAAEventID.event_OBJECT_FOCUS, 
ChildWindow.Process);                                                 
myMSAAEventSource.OnObjectFocus += myMSAAEventSource_OnObjectFocus;   So it 
does seem like the process that you’re using is not the right one.   Thanks,   
Aaron   -- Aaron Smith Web Development * App Development * Product Support 
Specialist Ai Squared * 725 Airport North Office Park, Fort Wayne, IN 46825 
260-489-3671 *www.aisquared.com   To insure that you receive proper support, 
please include all past correspondence (where applicable), and any relevant 
information pertinent to your situation when submitting a problem report to the 
Ai Squared Technical Support Team.   From: Yaling Liu 
[mailto:[email protected]]
Sent: Tuesday, December 1, 2015 11:26 AM
To: Aaron Smith <[email protected]>; Window-Eyes Scripting List 
<[email protected]>
Subject: Re: Cannot handle OnObjectFocus event in external csharp app   I 
deleted the line of setting msaaEventSource.Process, still not seeing 
differences. My script app is loaded from the App Manager for a specific app 
only, not global. I think the focus event is trapped correctly, since 
Window-Eyes doesn't read anything when I am navigating in the specific app but 
it reads as usual for all other apps. I am guessing the 2nd parameter of the 
BlockEvent call isn't right, but I don't know how to fix it.   Other event 
handlers in my script app work, for instance, when I do:  weapp.Speech.OnSpeak 
+= Speech_OnSpeak, the handler is invoked as expected.     On Tuesday, December 
1, 2015 9:35 AM, Aaron Smith <[email protected]> wrote:   I would start by 
omitting the process property to ensure that you are getting all focus events. 
Then you can set it once you locate the process for the application you’re 
interested in. Is your app loaded through the App Manager as a global app or a 
program specific app?   Thanks,   Aaron   -- Aaron Smith Web Development * App 
Development * Product Support Specialist Ai Squared * 725 Airport North Office 
Park, Fort Wayne, IN 46825 260-489-3671 *www.aisquared.com   To insure that you 
receive proper support, please include all past correspondence (where 
applicable), and any relevant information pertinent to your situation when 
submitting a problem report to the Ai Squared Technical Support Team.   From: 
Yaling Liu [mailto:[email protected]]
Sent: Tuesday, December 1, 2015 10:14 AM
To: Aaron Smith <[email protected]>; Window-Eyes Scripting List 
<[email protected]>
Subject: Re: Cannot handle OnObjectFocus event in external csharp app   I want 
to be notified for the focus events of the app that the external script is 
developed and loaded for. I tried to change the line to be the following, but 
didn't see any difference. Where can I get the app process object?    
msaaEventSource.Process = weapp.ClientInformation.ApplicationProcess;     On 
Tuesday, December 1, 2015 7:45 AM, Aaron Smith <[email protected]> wrote:   
By setting the EventSource Process property to your own process, you're telling 
Window-Eyes to only notify you about focus events in your own assembly.

Is that what you're attempting to do?

Aaron

-- 
Aaron Smith 
Web Development * App Development * Product Support Specialist
Ai Squared * 725 Airport North Office Park, Fort Wayne, IN 46825
260-489-3671 * www.aisquared.com

To insure that you receive proper support, please include all past 
correspondence (where applicable), and any relevant information pertinent to 
your situation when submitting a problem report to the Ai Squared Technical 
Support Team.

> -----Original Message-----
> From: Scripting [mailto:scripting-
> [email protected]] On Behalf Of
> Yaling Liu via Scripting
> Sent: Monday, November 30, 2015 7:12 PM
> To: [email protected]
> Subject: Cannot handle OnObjectFocus event in external csharp app
> 
> I am modifying the first C# example at:
> https://www.gwmicro.com/App_Central/Developers/C-Sharp/, added the
> following code in MyWindowEyes.cs. msaaEventSource and blockEvent are
> member variables of MyWindowEyes.cs. The focus event handler
> MSAAEventSource_OnObjectFocus does not work. It's not called. I know the
> BlockEvent method is executed correctly because when tabbing through
> buttons, Window-Eyes does not read anything.
> 
> public bool Init() {    ...    msaaEventSource = weapp.MSAAEventSource;
>     msaaEventSource.Process = ci.ApplicationProcess;
>     blockEvent =
> msaaEventSource.BlockEvent(WindowEyes.MSAAEventID.event_OBJECT_F
> OCUS, ci.ApplicationProcess);
>     msaaEventSource.OnObjectFocus +=
> MSAAEventSource_OnObjectFocus;    ...
> }
> void MSAAEventSource_OnObjectFocus(WindowEyes.Accessible Accessible)
> {
>     Program.wineyes.weapp.Speech.Silence();
>     Program.wineyes.weapp.Speech.Speak("hello world");}
> 
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Re: Cannot handle OnObjectFocus event in external csharp app

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