opengl 怎么实现 多窗口显示？ 最好是glut的

Question

我不会MFC希望最好能用glut库的做一个要求不多 希望能有2个窗口 每个显示的不一样

Answer 1

glutCreateWindow
glutCreateSubWindow 

Answer 2

#include <GL\glut.h>
GLuint mainw, subw1, subw2, subw3;
void init(void)
{
glClearColor(0.0,0.0,0.0,0.0);
glutSetWindow(subw1);
glClearColor(1.0,0.0,0.0,0.0);
glutSetWindow(subw2);
glClearColor(0.0,1.0,0.0,0.0);
glutSetWindow(subw3);
glClearColor(0.0,0.0,1.0,0.0);
}
void mreshape(int width,  int height) 
{
}
void mdisplay(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glutSwapBuffers();
}
void s1reshape(int width, int height)
{
}
void s1display(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glutSwapBuffers();
}
void s2reshape(int width, int height)
{
}
void s2display(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glutSwapBuffers();
}
void s3reshape(int width, int height)
{
}
void s3display(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glutSwapBuffers();
}
int main(int argc, char** argv)
{
    glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE);
    glutInitWindowSize(700, 700);
    glutInitWindowPosition(200, 200);
    glutInit(&argc, argv);
  
    mainw = glutCreateWindow("test");
    glutReshapeFunc(mreshape);
    glutDisplayFunc(mdisplay);
    subw1 = glutCreateSubWindow(mainw,30,30,300,300);
    glutReshapeFunc(s1reshape);
    glutDisplayFunc(s1display);
    subw2 = glutCreateSubWindow(mainw, 350,30,300,300);
    glutReshapeFunc(s2reshape);
    glutDisplayFunc(s2display);
    subw3 = glutCreateSubWindow(mainw, 350,380,300,300);
    glutReshapeFunc(s3reshape);
    glutDisplayFunc(s3display);    init();    glutMainLoop();    return 0;
}