OpenGL writing to framebuffer of graphics card

How can we write the pixel values to the framebuffer of the graphics card?
By calling the drawing functions of OpenGL like gldrawline, quad etc we generate the pixel values.
By generating a framebuffer and binding to it we can write to a custom framebuffer object.
But how do we write the generated pixels to the framebuffer of a graphics card?? Should I bind the graphics card’s framebuffer to the glframebuffer?? If so how do I do it??

This topic was automatically closed 183 days after the last reply. New replies are no longer allowed.