how to use dialog button to change a 2D object to 3D?

[coda]

I using opengl rendering to draw 2D objects in my dialog view. I wish to add a button to allow user to view the object as 3D. How do i proceed? any tutorial or sample on this will be greatly appreciated.:)

[Deniz]

If you want to use openGL, your best off going to the OpenGL.org (http://www.opengl.org) website to find a tutorial.

[cwc36]

Hi,

You can create a button and keep track on the button by gluPickMatrix() (gluPickMatrix() demo is linked as http://myopendemo.hypermart.net/opengl2.htm). Then you will display it in 3D view.


void Display()
{
if(!CLICK)
{
//Draw the 2D object
Draw2DObject();
}
else
{
//Draw the 3D object
Draw3DObject();
}
glutPostRedisplay();
}

Hope it can help