Clearing the consule window in C++

[amazingtrade]

I want to tidy up my UI for my program by clearing the screen to make it look more tidy on the consule mode in C++. I am using the IOSTREAM libary. Does anybody know how you clear the consule screen in C?

I want to the CLS thing in BASIC.

Thanks for any help, I have tried google and books but found nothing.

 

[penance]

what compiler are you useing?

if it supports conion.h (console input output)

#include <conio.h>

int main()
{

           printf("arse hats");
           getchar();
           clrscr();

           getchar();
           return;
}

ish

clears the console screen and returns the cursor to top left.
the library also contains gotoxy, usefull for makeing a tidy UI


conio.h is not ANSI C so be careful if portability is an issue

 

[michaelab]

Microsoft Visual C++ (all 32 bit editions) don't support clrscr() in its conio.h. You have to implement it yourself. See below for someone who has done it:

http://cs.colgate.edu/APCS/C++/VC++ClearScr.htm

btw AT it's spelled console

Michael.

 

[amazingtrade]

Thanks I will have a look at that. I'm using C++ NET at uni but Bloodshed DEV C++ at home so portability is a major issue.

 

[Sgt Rock]

Originally posted by michaelab

http://cs.colgate.edu/APCS/C++/VC++ClearScr.htm

The toothpaste people have a university

 

[michaelab]

Originally posted by amazingtrade
Thanks I will have a look at that. I'm using C++ NET at uni but Bloodshed DEV C++ at home so portability is a major issue.

If you're coding for the Windows environment then the code in the link I gave you will be fine but it's strictly Windows environment.

Michael.

 

[julian2002]

why not just print lots of \n's the scroll everything off the top of the console? should port to other platforms well enough?
int scrLines = 30;
for (int i = 0; i < scrLines; i++) cout << "\n";
should do it (for a 30 line console) or is my console c++ that rusty?

cheers


julian

 

[amazingtrade]

I thought of doing something like that but not shure how that would work in a windows enviroment as it /n makes it scroll down rather than up.

That will just add a long scrollbar to the screen and leave lots of white space I think.

I did so somthing like that in Java in college but I was working in a DOS environment then.

I wlll try it later though when I am on my dekstop, I am in bed atm on my ancient P233 laptop.

 

[penance]

Julians idea would clear the screen, but would leave the curser at the bottom i think

 

[amazingtrade]

I try it, I am sure its pretty easy to move the postion of the cursor using x,y commands but then I might as well use Micheal's suggestion as that involves using other libaries too.

I will have a play.

 

[Paul Ranson]

You could read the Windows documentation, this is immediately relevant. http://msdn.microsoft.com/library/en-us/dllproc/base/clearing_the_screen.asp

If you're writing Windows apps I think you could find a free 'curses' implementation for Windows. This would give you Unix source compatibility but is a whole new thing to learn.

But if all you want to do is clear the screen when your program starts/exits then the 'system ("cls");' approach rules. If you have compilation problems then just use conditional compilation to remove the call from the Bloodhound build.

Paul

 

[amazingtrade]

Thanks, that method worked

{
system("cls");
}

I just need to check it works on the .NET compiler though.

 

[SteveC]

...I wlll try it later though when I am on my dekstop, I am in bed atm on my ancient P233 laptop. [/B]

Do you have back problems or something?

SteveC

 

[amazingtrade]

Lol I was just tired and my laptop is silent unlike my noisy desktop.

 

[themadhippy]

have you tried

 

[amazingtrade]

If I wasn't feeling so down (because of a couple of problems at uni and my social life crisis) I would actually find that quite funny

 

[Sgt Rock]

Originally posted by themadhippy
have you tried

LOL Les that's a classic