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POC# Shell - IO redirection
 

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    <p>I am writing a replacement Windows shell in C#, and the feature I am currently implementing is having all IO inside the same shell window - ie, not opening cmd.exe in another window.</p> <p>Right now, I have a partial solution to output. This is my code (where p is the running Process):</p> <pre><code>while ( !p.HasExited ) { /* ... - irrelevant */ if ( redirect ) { try { p.BeginOutputReadLine(); } catch { } } } </code></pre> <p>The process is set up with all the correct properties, such as<code>UseShellExecute</code> = <code>False</code>, <code>RedirectStandard{Input, Output, Error}</code> = <code>True</code>, and the event handlers are set up correctly, but it's inconsistent.</p> <p>I have tried taking out the try/catch (which I know is extremely bad practice), and using a busy bool, which is set to false when the handler runs, but for some reason, I still get an InvalidOperationException on p.BeginOutputReadLine() - stating that there is already an async operation running.</p> <p>Any help would be appreciated, even if it requires a completely different solution to the one above, rather than just fixing it.</p> <p>Thanks.</p> <p><strong>EDIT</strong>: Here is the code which starts the process:</p> <pre><code>if (redirect) { p.StartInfo.RedirectStandardOutput = true; p.StartInfo.RedirectStandardError = true; p.StartInfo.RedirectStandardInput = true; p.StartInfo.UseShellExecute = false; p.OutputDataReceived += new DataReceivedEventHandler(redirectHandler_StdOut); p.ErrorDataReceived += new DataReceivedEventHandler(redirectHandler_StdErr); } p.Start(); </code></pre> <p>Also, I've realised that I'm not explaining what I mean by inconsistent. As they say, a picture is worth <code>2^3</code> words:</p> <p><img src="https://lucjon.fogbugz.com/default.asp?pg=pgDownload&amp;pgType=pgFile&amp;ixBugEvent=36&amp;ixAttachment=2&amp;sTicket=&amp;sFileName=lshell%20-%20rdrio.bmp" alt="screenshot"></p>
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    1. USLucas Jones
    1. USLucas Jones
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      1. USMaxim Zaslavsky
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    1. COWhat does the code that starts the process look like?
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      1. USFredrik Mörk
    2. COI'll just update the question now :)
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      1. USLucas Jones
 

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