detecting when a window is updated using c# or win32 api

Question

I'm using FindWindow , and SetForegroundWindow from the Win32 API within via pinvoke C#. The window is a screen with scrolling text, thats updated randomly, I want to be able to detect when just the specific window has been updated. I'm new to C# how can i do this?

score 1 · Accepted Answer · edited May 23 '17 at 10:24

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You can use the GetWindowText from User32 if it's a specific control you are trying to monitor for changes.

http://msdn.microsoft.com/en-us/library/windows/desktop/ms633520(v=vs.85).aspx

Another method would be to take a screenshot of the window, and compare the last image with the current image to detect changes.

Capture screenshot of active window?

edited May 23 '17 at 10:24

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answered Dec 21 '12 at 21:02

Walk

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i guess i could use spy++ to get the specific control – pyCthon Dec 21 '12 at 21:56
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There are also functions that can be used to identify the controls that exist in a window. – Walk Dec 21 '12 at 22:12
that would be very useful what are they? – pyCthon Dec 21 '12 at 22:15
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Here's an article you may find useful that talks about this: http://www.vbaccelerator.com/home/NET/Code/Libraries/Windows/Enumerating_Windows/article.asp – Walk Dec 21 '12 at 22:17

detecting when a window is updated using c# or win32 api

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