Keyboard and GLUT

[Hec]

Hi!

I need to know the state of keys (pressed, realeased), i saw the example in the new OpenGL Toolkit FAQ and there is an half-answer for this, becouse in my glut.h (version 3) file, i didn't find any function where i can register a:
keyboardfunc( int key, int state )
callback function

So how do i register this callback, or how do i call this function?

Thanks.

[jmathies]

Originally posted by Hec:
Hi!

I need to know the state of keys (pressed, realeased), i saw the example in the new OpenGL Toolkit FAQ and there is an half-answer for this, becouse in my glut.h (version 3) file, i didn't find any function where i can register a:
keyboardfunc( int key, int state )
callback function

So how do i register this callback, or how do i call this function?

Thanks.

I'll update the faq with this example code -
hope this helps.

Regards,
Jim

// gluttest.cpp : Defines the entry point for the console application.
//
 
#include "stdafx.h"
#include <windows.h>
#include "glut.h"
#include <stdio.h>
#pragma comment( lib, "glut32" )
 
static bool keystate[256];
 
void glutKeyboardUpCallback( unsigned char key, int x, int y )
{
    printf( "keyup=%i\n", key );
    keystate[key] = false;
}
 
 
void glutKeyboardCallback( unsigned char key, int x, int y )
{
    printf( "keydn=%i\n", key );
    keystate[key] = true;
}
 
void glutDisplayCallback( void )
{
  Sleep(100);
 
  for ( int i=0; i <= 255; i++ ) 
  {
    if ( keystate[i] == true ) 
      printf( "ASCII key %i is pressed.\n", i );
  }
 
  glutPostRedisplay();
}
 
int main(int argc, char* argv[])
{
 
 
    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
    glutCreateWindow( "test" );
    glutKeyboardFunc( glutKeyboardCallback );
    glutKeyboardUpFunc( glutKeyboardUpCallback );
    glutDisplayFunc( glutDisplayCallback );
    glutMainLoop();
 
	return 0;
}

[Hec]

Thanks Jim!