clrscr() in VC++?
Author
Hi!
the function clrscr() doesnt work in VC++, but it does work in C++ Builder. What the function does is, it clears the screen of a console application, removing all text. Is there a similiar function in VC++ aswell? Maybe clrscr() actually does exist in VC++ but in that case how do you implement it in a program? What headerfile do you have to include?
thanks
On an ANSI console (that is, with ansi.sys loaded up in the system), print out the following string "0x1B[2J".
If you don''t want to depend on ansi.sys (most systems don''t load it), you could use
system("cls");
The system function passes command to the command interpreter, which executes the string as an operating-system command. system refers to the COMSPEC and PATH environment variables that locate the command-interpreter file (the file named CMD.EXE in Windows NT). If command is NULL, the function simply checks to see whether the command interpreter exists.
Example
/* SYSTEM.C: This program uses
* system to TYPE its source file.
*/
#include "process.h"
void main( void )
{
system( "type system.c" );
}
That should help =)
Axe
Edited by - Axehandler on December 14, 2001 2:30:32 PM
Example
/* SYSTEM.C: This program uses
* system to TYPE its source file.
*/
#include "process.h"
void main( void )
{
system( "type system.c" );
}
That should help =)
Axe
Edited by - Axehandler on December 14, 2001 2:30:32 PM
Process.h is not a standard header file. The system function is in stdlib.h. Also, you can clear a Win32 Console using the Win32 console API (I hope I do this correctly 
):
[Edited for line length]
[Resist Windows XP's Invasive Production Activation Technology!]
Edited by - Null and Void on December 14, 2001 5:29:47 PM
): bool ClearScreen(void) { HANDLE hconsole = GetStdHandle(STD_OUTPUT_HANDLE); CONSOLE_SCREEN_BUFFER_INFO csbi; if(!GetConsoleScreenBufferInfo (hconsole, &csbi)) return false; COORD coordScreen = { 0, 0 }; DWORD cCharsWritten; DWORD dwConSize = csbi.dwSize.X * csbi.dwSize.Y; return (FillConsoleOutputCharacter (hconsole, ' ', dwConSize, coordScreen, &cCharsWritten) && FillConsoleOutputAttribute(hconsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten) && SetConsoleCursorPosition(hconsole, coordScreen));} [Edited for line length]
[Resist Windows XP's Invasive Production Activation Technology!]
Edited by - Null and Void on December 14, 2001 5:29:47 PM
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