Thread: Arrow keys as keyboard Input

Hey everyone i am trying to write an openGL program that uses the arrow keys to rotate an image. The problem is i can't seem to find out how to use the keys. Is there specific numbers that corresponds to them? ASCII values ?

I need to say :

Code:

if (key == arrow key) { 
....
....
}

thanks in advance,
Brad

I know there's a chart somplace, but this simple program will tell you the ascii value of any key on the keyboard. This program will make special keys such as arrow keys and function keys negative so that a program can distinguish between special and normal keys. special keys have the same ascii value of normal keys, the difference is that specia keys are returned as two integers instead of one.

Code:

#include <iostream>
#include <conio.h>
using namespace std;


int main() /* program main begins execution */
{
	int c= 0;
	while( c != 27)
	{
		c = getche();
		if(c == 0 || c == 224)
			c = -getche();
		cout << c << endl;
		
	}

   return 0;  /* indicates successful program execution */
}