gistfile1.txt

#include <GL/glew.h>
#include <GL/glut.h>
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
using std::cout;

int test = 1;
bool* keyStates = new bool[256];


void keydownOrdinary (unsigned char key, int x, int y) // pretty much useless, use glutSpecialFunc
{
    switch(key){
        case 27:
            exit(0);
            break;
        case 'a':
            printf("mhmaa");
            break;
        default:
            break;
    }
}
void keyupOrdinary(unsigned char key, int x, int y){
    switch(key){
        default:
            break;
    }
}

void keydownSpecial(int key, int x, int y){
    switch(key){
        case GLUT_KEY_UP:
            test++;
            break;
        case GLUT_KEY_DOWN:
            test--;
            printf("down pressed %i\n",test);
            fflush(stdout);
            break;
        case GLUT_KEY_LEFT:
            break;
        case GLUT_KEY_RIGHT:
            break;
        default:
            break;
    }
    glutPostRedisplay();
}

void keyupSpecial(int key, int x, int y){
    switch(key){
        default:
            break;
    }
}

void reshape(int w, int h)
{
    glViewport(0,0, (GLsizei) w, (GLsizei) h);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
}

void keyOperations(void){
}


void display(void)
{
  keyOperations();

  glClearColor(1.0f,0.7f,0,0);
  glClear(GL_COLOR_BUFFER_BIT);

  glBegin(GL_TRIANGLES);
  {
    glColor3f(1,0,0);
    glVertex2f(0,0);

    glColor3f(0,3,0);
    glVertex2f(.5,0);

    glColor3f(0,0,test);
    glVertex2f(.2,.5);
  }
  glEnd();
  test++;

  glutSwapBuffers();
  //fflush(stdout); // flush stdout buffer
}



int main(int argc, char** argv) {
  glutInit(&argc, argv);
  glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);  
  glutInitWindowSize(512,512);
  glutInitWindowPosition(30,30);

  glutCreateWindow("hi :)");
  glutSetWindowTitle("hi :)");

  glutDisplayFunc(display);
  glutReshapeFunc(reshape);


  //keyboard funcs
  glutKeyboardFunc(keydownOrdinary);
  glutKeyboardUpFunc(keyupOrdinary);

  glutSpecialFunc(keydownSpecial);
  glutSpecialUpFunc(keyupSpecial);
  
  glutMainLoop();

  return 0;
}