Read screen

[wktr]

Hi iam wondering if it's possible to use libraries such as OpenGL to read information from the screen, like a screen recorder (such as fraps)?
i don't want to save the images/info i just need to be able to collect information about the screen from pixel P1(x1,x2) - P2 (y1, y2) (a rectangular shape)


all help is appriciated

[Kalvin]

u can try using vdu memory functions for this,