How to "listen" for text changes in a particular part of a window.

Posted on 2006-06-09
Medium Priority
Last Modified: 2010-04-16
Is it possible with c# to recognize if a text changes in a particular part of a window. eg. a rectangle in the upper right corner of the window.

I´m thinking about something like telling the application to notice changes in a rectangle (eg. 10x2 cm).
If changes are notice the application should copy the text to a variable.

Can you help me?
Question by:dontso
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Expert Comment

ID: 16870324
Is the text you want to monitor part of any control(textbox, label)?

How is the text changed? By what?

Author Comment

ID: 16870410
The text is in a flash application, so I guess (I dont know) I cant access any controls.
The text is changing by itself when news is recieved from a server.
I would like to get a notice on my screen when the text is changing. (eg. a messagebox showing the text that changed), but that I can do myself.
I just have no idea how to 1. let my application know when the text changes. 2. copy the text.
By the way: the text is not like an animation. It can be highlighted with the mouse and copy/pasted (maybe that makes a difference?)

Expert Comment

ID: 16870462
Can you modify the Flash application?

If so you should probably put code in it to notify the checking application.
Ask in the Flash forum:
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Author Comment

ID: 16870485
Unfortunately I cannot modify the flash application.
I guess the only choice is to make c# "listen" to change in the way the screen looks. Is that possible in any way?

Accepted Solution

CaldNT earned 1000 total points
ID: 16870780
I have never done anything similar to this.

I found this link which let's you capture part of the screen:

You would need to let the part of the screen you want to "listen" to be visible and find a way to get the window position of the other application.

Hope that points you in the right direction.

Sorry I couldn't be of any more help.

Good luck!

Author Comment

ID: 16871206
Thanks for your help.

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