Thread: Input Grabber.......

hi...

normal scanf(), gets(), getc() only wait for user to enter input and end when user press "Enter"...,

but I wanted to know is there a function that active only if there is a keystroke from the keyboard........

Try using

GetAsyncKeyState(int Keycode);

For example:

Code:

#include <windows.h>
#include <stdio.h>

int main(void){
bool WaitingForKey=true;
     while(WaitingForKey){
          if(GetAsyncKeyState(VK_SPACE)){
               MessageBox(0,"You pressed SPACE!", "Hey",MB_OK);
               WaitingForKey=false;
           }
     }
getchar(); //Pause.
return 0;
}

Well... most windows compliers supply function getch to do this, though getch is not standard function.

Code:

#include <conio.h> /* not a standard header file */

int main( void )
{
    getch();

    return 0;
}

try kbhit() .

The OP never stated the platform.

Please see http://faq.cprogramming.com/cgi-bin/...&id=1043284385 and the first question on http://www.eskimo.com/~scs/C-faq/s19.html.

Preferably, read every FAQ entry there.

Originally Posted by cwr

The OP never stated the platform.

Please see http://faq.cprogramming.com/cgi-bin/...&id=1043284385 and the first question on http://www.eskimo.com/~scs/C-faq/s19.html.

Preferably, read every FAQ entry there.

Sorry, I'm using windows 2000 pro and microsoft Visual C++ 2003 .NET