cout << endl << endl << endl << endl << endl << endl << endl << endl << endl << endl << endl << endl << endl;
cout << endl << endl << endl << endl << endl << endl << endl << endl << endl << endl << endl;
and
cout << "\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n";
Clearning the screen in a Win32 Console Application.. (C++)
Author
Howdey!
Does anyone have a clue on how one would go about clearing the screen in a Win32 Console Application in C++?
Clearing the screen using the Win32 Console API:
[Resist Windows XP''s Invasive Production Activation Technology!]
bool Clear() { HANDLE hconsole = GetStdHandle (STD_OUTPUT_HANDLE); // get the number of character cells in the current buffer CONSOLE_SCREEN_BUFFER_INFO csbi; if (!GetConsoleScreenBufferInfo (hconsole, &csbi)) return false; COORD coordScreen = { 0, 0 }; // here''s where we''ll home the cursor DWORD cCharsWritten; // number of chars written by console output routines DWORD dwConSize = csbi.dwSize.X * csbi.dwSize.Y; // fill the entire screen with blanks return (FillConsoleOutputCharacter (hconsole, '' '', dwConSize, coordScreen, &cCharsWritten) && FillConsoleOutputAttribute (hconsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten) && SetConsoleCursorPosition (hconsole, coordScreen));} [Resist Windows XP''s Invasive Production Activation Technology!]
Author
Holy...
Just to clear the screen?
Can someone tell me what was wrong with the BASIC statement "CLS"?!
Thanks for the info.
Also.. a question on using this knowledge you have bestowed upon me..
I'm still rather new to C++ and doubt I would know how to use this..
Every time, after that is defined, I wanted to clear the screen I would just use:
Also.. If I wanted to take that and create a header file (to save me from having to do that every time I created a win32 console App) would it be possable for me to just #include that in my project?
I'm sorry i'm asking so many questions. It's a habbit of mine.
-Kedaeus-
-Eater of Files-
Edited by - Kedaeus on June 21, 2001 5:10:15 PM
Just to clear the screen?
Can someone tell me what was wrong with the BASIC statement "CLS"?!
Thanks for the info.
Also.. a question on using this knowledge you have bestowed upon me..
I'm still rather new to C++ and doubt I would know how to use this..
Every time, after that is defined, I wanted to clear the screen I would just use:
clear(); Also.. If I wanted to take that and create a header file (to save me from having to do that every time I created a win32 console App) would it be possable for me to just #include that in my project?
I'm sorry i'm asking so many questions. It's a habbit of mine.
-Kedaeus-
-Eater of Files-
Edited by - Kedaeus on June 21, 2001 5:10:15 PM
Yes, you have to do all that just to clear the screen 
, and yes, with the above function, you just have to call clear(). Oh, and yes, you could put that in a header file ... although a better idea might be to put all console-related functions in a .cpp file, and add that file to your project.
~~~~~~~~~~
Martee
, and yes, with the above function, you just have to call clear(). Oh, and yes, you could put that in a header file ... although a better idea might be to put all console-related functions in a .cpp file, and add that file to your project. ~~~~~~~~~~
Martee
If you're trying to clear the screen in a console app then you can make use of system calls to clear the screen.
You need to #include to use the system() function.
Here's the syntax for clearing the screen, it's pretty simple:
system("cls");
And here's an overly complicated demonstration of this simple concept:
Edited by - eotvos on June 21, 2001 6:22:54 PM
You need to #include to use the system() function.
Here's the syntax for clearing the screen, it's pretty simple:
system("cls");
And here's an overly complicated demonstration of this simple concept:
#include <stdlib.h>#include <fstream.h>void main(){ int loop_on = 1; char choice; cout << "Press '1' to display message 1, press '2' todisplay message 2. \n"; cout << "Press the Q key to quit. \n"; while(loop_on == 1) { cin >> choice; switch (choice) { case '1': system("cls"); cout << "message 1!!! \n"; break; case '2': system("cls"); cout << "message 2!!! \n"; break; case 'q': system("cls"); loop_on--; break; } }} Edited by - eotvos on June 21, 2001 6:22:54 PM
Yeah, you could do that, but I suspect that it would involve a performance hit. Also, you are relying on the assumption that the command processor supports the ''cls'' command. Who knows what future versions of Windows will do?
~~~~~~~~~~
Martee
~~~~~~~~~~
Martee
Yeah, you probably won't do any ascii animation with it :D.
I dunno what Kedaeus wants to clear the screen for, but for a console app it's alot better than cout << endl << endl etc..
I'm using Win98 SE, so I can't gurantee it'll work on any later versions.
Kedaeus: If you use clear(), don't forget to to put
at the top of your source, won't work without it.
Edited by - eotvos on June 21, 2001 7:43:22 PM
I dunno what Kedaeus wants to clear the screen for, but for a console app it's alot better than cout << endl << endl etc..
I'm using Win98 SE, so I can't gurantee it'll work on any later versions.
Kedaeus: If you use clear(), don't forget to to put
#define WIN32_LEAN_AND_MEAN#include <windows.h> at the top of your source, won't work without it.
Edited by - eotvos on June 21, 2001 7:43:22 PM
Author
I''m using it for a text based adventure..
So.. no, no animation is involved.
Thanks, it took me a while but I finaly remembered that
-Kedaeus-
So.. no, no animation is involved.
Thanks, it took me a while but I finaly remembered that
-Kedaeus-
#include
...
system("CLS"); //clear the screen
...
hope that helped.
-Dave
---------------------------------------
"When I lie, I am telling the truth"
...
system("CLS"); //clear the screen
...
hope that helped.
-Dave
---------------------------------------
"When I lie, I am telling the truth"
thats #include (stdlib.h) brackets are HTML, I forgot!
---------------------------------------
"When I lie, I am telling the truth"
---------------------------------------
"When I lie, I am telling the truth"
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