C# : Redirect console application output : How to flush the output?

Posted by user93422 on Stack Overflow See other posts from Stack Overflow or by user93422
Published on 2009-06-23T16:16:53Z Indexed on 2010/06/17 14:43 UTC
Read the original article Hit count: 217

Filed under:

c#

|

console

|

external-process

|

output-redirect

I am spawning external console application and use async output redirect.
as shown in this SO post

My problem is it seems that the spawned process needs to produce certain amount of output before I get the OutputDataReceived event notification.

I want to receive the OutputDataReceived event as soon as possible.

I have a bare-bones redirecting application, and here are some observations:
1. When I call a simple 'while(true) print("X");' console application (C#) I receive output event immediately. 2. When I call a 3d party app I am trying to wrap from the command line I see the line-by-line output.
3. When I call that 3d party app from my bare-bone wrapper (see 1) - the output comes in chunks (about one page size).

What happens inside that app?

FYI: The app in question is a "USBee DX Data Exctarctor (Async bus) v1.0".

© Stack Overflow or respective owner

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More

Related posts about console

Having the output of a Console App in Visual Studio instead of the Console

as seen on Stack Overflow - Search for 'Stack Overflow'
When doing "Console" apps in Java with Eclipse, I see the output being put in a text box on the IDE itself, instead of having a Console popping up like in Visual Studio. This comes in handy, as even after the program has exited, I can still make good use of the text that was written in it, as it doesn't… >>> More
Need an example about console application which user can interact console window

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello everyone, I need write a console application like as hiren boot screen: User can input a arrow key or a number for choosing. When a menu item is selected, I will fill a background for the selected menu item. Please give me some guideline or example. Thanks. >>> More
my C++ console program not working writing to console

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to write something.. to output to the console.... this is in my int main function...... using Foundation.Foundation; NSString* myString = @"Output Test"; NSLog(@"%@", myString); And I get the errors Error 1 Syntax error, '(' expected Error 2 ) expected >>> More
Trying to run my code and compiler seems to just close after it executes [migrated]

as seen on Programmers - Search for 'Programmers'
I am trying to run a program and the compiler seems to just crash right after it executes ... i have no build errors so i am wondering what the hell is going on ... I am a bit of a novice so all help would be appreciated =). I don't know if you might have time to scan through the code but this is… >>> More
All downloads being interrupted

as seen on Super User - Search for 'Super User'
System: Windows 7 Professional 64bit. 8GB RAM, Intel i5-2400 CPU, +300GB free on the hard drive. AVG Internet Security 2012 (enabled & disabled, with firewall enabled and disabled - no effect for either). This computer is less than a year old. Network: This problem is occurring on a single computer… >>> More