Opengl_ Chess board

#include "stdafx.h"

#include <gl/glut.h>

void Myinit (void)

{

Glclearcolor (0.2, 0.2, 0.2, 0.0); Set the background color to white;

glcolor3f (0.0f, 0.0f, 0.0f); Set the drawing color to black;

Glpointsize (1.0); Set the point size;

Gllinewidth (1.0); Set the line width;

Glmatrixmode (gl_projection); Select the appropriate matrix;

Glloadidentity ();

gluortho2d (0.0, 500.0, 0.0, 500.0); Set the window size;

}

void Drawchessboard (void)

{

Glclear (Gl_color_buffer_bit); Clear screen;

glcolor3f (0.6, 0.6, 0.6);

Glrecti (0.0,0.0,100.0,100.0);

Glrecti (0.0, 200.0, 100.0, 300.0);

Glrecti (0.0, 400.0, 100.0, 500.0);

Glrecti (100.0, 100.0, 200.0, 200.0);

Glrecti (100.0, 300.0, 200.0, 400.0);

Glrecti (200.0, 0.0, 300.0, 100.0);

Glrecti (200.0, 200.0, 300.0, 300.0);

Glrecti (200.0, 400.0, 300.0, 500.0);

Glrecti (300.0, 100.0, 400.0, 200.0);

Glrecti (300.0, 300.0, 400.0, 400.0);

GLRECTI (400, 0, 500, 100);

Glrecti (400, 200, 500, 300);

GLRECTI (400, 400, 500, 500);

Glflush ();

}

int main (int argc,char* argv[])

{

Glutinit (&ARGC, argv); Initialize the toolkit;

Glutinitdisplaymode (Glut_single |     GLUT_RGB); Set the display mode;

Glutinitwindowposition (100, 100); Sets the position of the window on the screen;

Glutinitwindowsize (500, 500); Set the window size;

Glutcreatewindow ("chessboard"); Open the screen window;

Glutdisplayfunc (Drawchessboard); Register redraw function;

Myinit ();

Glutmainloop (); Enter the permanent cycle;

}

Opengl_ Chess board