Active window change event

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Hi,

I need to write an app wherein I need to know everytime the active window changes on a Windows machine. I don't want to use a continuous loop for this. I need some event I can subscribe to do the job.

For more clarity: When I say active window changes I mean when user switches windows e.q. going from IE to Windows explorer to Notepad to Outlook etc.

Rashmi

Posted 23-Jan-12 16:44pm

Member 8253943

Updated 23-Jan-12 18:23pm

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Sergey Alexandrovich Kryukov 23-Jan-12 22:53pm

The solution is very easy, but the question is not fully formulates. Please tag your application type, UI library. What is it: WPF, Forms, Silvelight, anything else?

--SA

Member 8253943 24-Jan-12 0:14am

I have rephrased my query. Could you share that 'very easy solution' please?

Sergey Alexandrovich Kryukov 25-Jan-12 1:52am

No, because you are not answering my question!
Sorry, I had enough of it.
--SA

Sergey Alexandrovich Kryukov 23-Jan-12 22:54pm

A suggestion to all experts:

We should stop attempting to answer any questions if OP does not properly specify type of application, UI library and other relevant detail which would exclude this kind of confusion. All type mentioned in the question should be written in fully-qualified form. We should request it and only answer when OP comply. Multiple failures to specify such detail became a curse of this forum.

--SA

Dave Kreskowiak 23-Jan-12 23:00pm

Are you kidding?? We wouldn't be answering any questions at all then.

Sergey Alexandrovich Kryukov 25-Jan-12 1:47am

No kidding. I keep answering but I stopped to answer questions like that before OP specifies the UI library, for example. If makes little sense.
--SA

Lakamraju Raghuram 23-Jan-12 23:19pm

Yup, we have to red mark all the questions then, but at the same time we can not keep on investigating the OP to get proper question (:

Why can't we have a proper/better template then...

Sergey Alexandrovich Kryukov 25-Jan-12 1:51am

No, not all of them, but many. Is anything wrong with that? As we had not enough question... :-)
Another option is to remove such questions. If we start to remove some 60-90% of the questions, our site won't suffer I think, will be only better.

Right now we are sunken in garbage.

Pay attention for this one: OP still did not answer my direct question and did not tag anything.
--SA

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Dave Kreskowiak · Answer 1 · 2012-01-23T17:02:00

Solution 1

AFAIK, the only way to do that would be to write up a CBTProc hook. Documentation on it can be found here[^]. You'll also need to read up on these[^].

Posted 23-Jan-12 17:02pm

Dave Kreskowiak

Comments

Member 8253943 24-Jan-12 5:17am

Hi Dave, the second link in your post opens up google.com. Can you update it please?

Dave Kreskowiak 24-Jan-12 7:52am

It's supposed to open up to Google. This is where you do research into the CBT Hook.

MingyiWang · Answer 2 · 2012-01-23T17:07:00

Solution 2

What's meaning of changes you said?

Posted 23-Jan-12 17:07pm

MingyiWang