473,698 Members | 2,392 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Press Q to Quit (console app)

I have a console application that I want to continue to run until I press a
key.

How can I get a keypress without stopping execution?

Thanks.
Nov 15 '05 #1
5 6628
Console.Read() will wait until a key is pressed. You can get the input and test to see if the character is Q and quit or read another character.
Nov 15 '05 #2
But that is the point, I don't want the application to stop. I want the app
(in a loop) to keep running UNTIL I press 'Q'.
"Tim Begin" <an*******@disc ussions.microso ft.com> wrote in message
news:E3******** *************** ***********@mic rosoft.com...
Console.Read() will wait until a key is pressed. You can get the input

and test to see if the character is Q and quit or read another character.
Nov 15 '05 #3
Hmm, you could start a new thread that executes your buisness logic, and
have your main thread wait for input, when the input comes you could kill
the buisness thread, is that what you wanted?
"WildHare" <ki******@siva. com> wrote in message
news:eB******** ******@TK2MSFTN GP11.phx.gbl...
But that is the point, I don't want the application to stop. I want the app (in a loop) to keep running UNTIL I press 'Q'.
"Tim Begin" <an*******@disc ussions.microso ft.com> wrote in message
news:E3******** *************** ***********@mic rosoft.com...
Console.Read() will wait until a key is pressed. You can get the input

and test to see if the character is Q and quit or read another character.

Nov 15 '05 #4
WildHare wrote:
But that is the point, I don't want the application to stop. I want the app
(in a loop) to keep running UNTIL I press 'Q'.
"Tim Begin" <an*******@disc ussions.microso ft.com> wrote in message
news:E3******** *************** ***********@mic rosoft.com...
Console.Read( ) will wait until a key is pressed. You can get the input


and test to see if the character is Q and quit or read another character.


This isn't supported in the 1.x Framework Console class. I believe that
it is supported in the upcoming 2.0 Framework (I know - that doesn't
help you today...).

The solution that others have mentioned working involves using P/Invoke
to the Win32 Console APIs. I have no sample for you, as I haven't
needed to do this, but I'm sure that a quick Google would net some good
results.

Or just write the P/Invoke wrappers yourself, it can't be all that complex.

--
mikeb

Nov 15 '05 #5
My head is spinning with all the paths of execution (the business logic
launches all finds of threads as part of its behavior), but I will find a
way to document that.

The only remaining issue is that I have to press <enter> for the Q to be
read. I guess, unless I want to make API calls I am stuck with that ...
right?

"Carlson Quick" <ca******@exten dedsystems.com> wrote in message
news:Ov******** ******@TK2MSFTN GP10.phx.gbl...
Hmm, you could start a new thread that executes your buisness logic, and
have your main thread wait for input, when the input comes you could kill
the buisness thread, is that what you wanted?
"WildHare" <ki******@siva. com> wrote in message
news:eB******** ******@TK2MSFTN GP11.phx.gbl...
But that is the point, I don't want the application to stop. I want the

app
(in a loop) to keep running UNTIL I press 'Q'.
"Tim Begin" <an*******@disc ussions.microso ft.com> wrote in message
news:E3******** *************** ***********@mic rosoft.com...
Console.Read() will wait until a key is pressed. You can get the
input and test to see if the character is Q and quit or read another character.


Nov 15 '05 #6

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

2
4531
by: Paul Johnston | last post by:
I'm using VB.Net. I've tried using Console.Read() but it requires a line-terminator before it finishes (doesn't that mean it's functionally equivalent to ReadLine() -- why have it then?). I've tried Console.In.ReadBlock(), too, with no success. So, along these lines, how would I implement, simply, a "Press Any Key to Continue" routine or, more complex, a text menu in a Console app to get a single character? i.e.
1
5383
by: Oz | last post by:
This is long. Bear with me, as I will really go through all the convoluted stuff that shows there is a problem with streams (at least when used to redirect stdout). The basic idea is that my application (VB.NET) will start a process, redirect its stdout and capture that process' output, displaying it in a window. I've written a component for this, and a test application for the component. It allows me to specify a command to execute,...
6
2446
by: Johan Svedberg | last post by:
Hi! I read somewhere that it is impossible to write a program in ANSI-C which only reads one char from the keyboard without having to press Enter (i.e. -questions). Is this true? -- Johan Svedberg, johan@svedberg.pp.se, http://johan.svedberg.pp.se/
6
2466
by: Bob Altman | last post by:
Hi all, I have an unmanaged console app written in C++. I can't figure out how to get C++ to do the standard issue "press any key to continue" thing: cout << "Press any key to continue: "; cin >> <your code goes here>; TIA,
1
1415
by: Andrzej J. Turowicz | last post by:
I create new WebSite named UseWebPart ( sample from Ms Press Book) next steps: Add WebPartManagerIO , WebPartZone, EditorZone & CatalogZone, etc etc etc if i am running this sample under VisualStudio 2005 IDE all modes ( Browse, Design, Edit, Catalog ) are operational. Next step, configure WebSita (Users from Lan, anonymous)
9
64423
by: Susan Rice | last post by:
I'm running a simple win32 console application and I want to impliment a "Press any key to continue", so I print that prompt, and then what's the easiest way to impliment reading any key? Do I use 'getchar', or 'gets', or some get function? or 'cin', or what's an easy way? What I want is the program to pause before exiting so the user can read whatever messages there are before the console window disappears.
5
13304
by: mzdude | last post by:
I've just started playing with Python. Installed 2.5 on Windows XP system. I'm working through some of the examples in Programming Python 3ed by Mark Lutz. Given the following example when the Quit All button action is assigned to root.quit the windows aren't dismissed or destroyed. The application appears to terminate, but the windows remain. When the action is assigned to root.destroy, the windows are closed. Questions: 1) Which way is...
12
6536
by: Dilip | last post by:
Hi All I have a server based C# console application. This application must hide its console window when its launched out on the field. So I dutifully P/Invoke'd FindWindow/ShowWindow combination to hide the console window at launch time. The application (for legacy reasons) hangs around by waiting on an old- fashioned Console.ReadLine() statement.
9
21389
by: Andy | last post by:
Just noticed something interesting in the above. If you have your program file set to "Compact on Close" in access 2007 (which is desirable when you have a larger program that frequently needs compacting), if you use the following code on an "Exit Application" type button, the compacting on close won't fire: Application.Quit acQuitSaveNone however, if you use:
0
8609
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
9166
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
9030
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
8899
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
7737
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
6525
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
5861
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
2
2333
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2007
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.