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Editorial Team
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Asked: 2026-05-13T22:56:38+00:00

I’ve read several articles that tell you how to add text to the output

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I’ve read several articles that tell you how to add text to the output window in visual studio from within an Add-On (specifically, a visual studio 2008 integration package, via the visual studio 2008 SDK 1.1), but no examples of how to read text from the output window. My goal is to parse text from the debug output window while debugging a certain application (TRACE output and possibly stdin/stdout). The IVsOutputWindowPane interface has no methods for reading in text from the output window. The documentation seems to imply that it is possible, but it doesn’t provide an example:

http://msdn.microsoft.com/en-us/library/bb166236(VS.80).aspx

Quote: In addition, the OutputWindow and OutputWindowPane objects add some higher-level functionality to make it easier to enumerate the Output window panes and to retrieve text from the panes.

Preferably I’d like to be able to subscribe to an event that fires when a new line of text arrives, similar to a StreamReader’s asynchronous reads.

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1 Answer

  1. Editorial Team

    The default behavior (when you don’t set the listener explicitly) of VS is to display trace massages in the debugger output window, which you appreciate if you want a simple solution and do no other actions with the massages.

    Unfortunately this is not your case. So you have to define a trace listener to send (and store) your trace massages where you then will be able to read them. The trace listener could be a file (for example XML) or you can create a custom listener by deriving a class from the base class TraceListener if you don’t want to bother yourself with an additional file.

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