用openGL实现用黑白相间的棋盘图案填充多边形

#include<gl/glut.h>
#include<windows.h>
int n=;
float a0=,b0=,a1=,b1=,a2=,b2=,a3=,b3=;
int winWidth=,winHeight=;

void Initial(void)
{
    glClearColor(1.0f,1.0f,1.0f,1.0f);
} 

void ChangeSize(int w,int h)
{  winWidth=,winHeight=;
    glViewport(,,w,h);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluOrtho2D(0.0,winWidth,0.0,winHeight);
} 

void Display()
{
    glColor3f(0.0f,0.0f,0.0f);
    GLubyte fly[]=
    {   0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,
        0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,
        0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,
        0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,
        0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,
        0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,
        0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,
        0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,
        0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,
        0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,
        0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,
        0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,
        0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,
        0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,
        0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,
        0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,
    };
    glEnable(GL_POLYGON_STIPPLE);
    glPolygonStipple(fly);
    glRectf(,,,);
    glutSwapBuffers();
}
int main(int argc,char *argv[])
{  glutInit(&argc,argv);
   glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB);
   glutInitWindowSize(,);
   glutInitWindowPosition(,);
   glutCreateWindow("用黑白相间的棋盘图案填充多边形");
   glutDisplayFunc(Display);
   glutReshapeFunc(ChangeSize);
   Initial();
   glutMainLoop();
   return ;
}

参考了别人的代码，刚接触这个东西，感觉函数名真多。。。尤其是vc++6.0没有智能感知，写的真累。