getch(), up down left right

if getch() only returns one value, how do you get the return values for the up, down, left and right keys? i mean, they are like 0+75 and 0+72, etc. does anyone know?

also, how can you capture a keypress without the program pausing and waiting for it?

bennyandthejets

> how do you get the return values for the up, down, left and right keys
Call getch twice

ch = getch();
if ( ch == 0 ) ch = 256 + getch();

Normal keys are in the range 0..255
Extended keys are in the range 256..511

> how can you capture a keypress without the program pausing and waiting for it?
Depends on your OS and compiler

well the values for up, down, left , right are as follows.. But i do not know the correct order

0x48
0x50
0x4d
0x4b


Well you can use it like this

int ch;
ch=getch();

if(ch==0x48)
move left or something


ANd to get a key without waiting.. If you are using Windows and if your compiler supports it.. Include conio(i guess)

use the function kbhit()
Eg

if(kbhit())
{

ch=getch();
}
else
do something


So now untill a key is pressed something else can be done..

http://www.cprogramming.com/cboard/s...ght=keys+getch