在Windows上使用OpenGL扩展

#include <GL/glut.h>

void display() {
    glClearColor(0.0, 0.0, 0.0, 1.0);
    glClear(GL_COLOR_BUFFER_BIT);

    glColor3f(1.0, 1.0, 1.0);
    glBegin(GL_POLYGON);
        glVertex3f(-0.5, -0.5, 0.0);
        glVertex3f(0.5, -0.5, 0.0);
        glVertex3f(0.5, 0.5, 0.0);
        glVertex3f(-0.5, 0.5, 0.0);
    glEnd();

    glFlush();
}

int main(int argc, char** argv) {
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize(500, 500);
    glutInitWindowPosition(100, 100);
    glutCreateWindow("OpenGL Program");

    glutDisplayFunc(display);
    glutMainLoop();

    return 0;
}