Sampling pixels...

BlitzMax Forums/BlitzMax Beginners Area/Sampling pixels...

Dubious Drewski (Posted 2005) [#1]

What's the best way to do it? To be honest, I can't figure out any way to do it. I've seen an example where someone sampled from a loaded file. I need need to sample directly from the screen buffer. I can't find the topic in the forums either. Any help would be great.

LarsG (Posted 2005) [#2]

what do you mean "sample"? do you mean reading the pixels from the screen?

ImaginaryHuman (Posted 2005) [#3]

You either have to use GrabPixmap and then look at the content of the pixmap data, or use glReadPixels() to save off some pixels into a buffer in main memory then examine that. Not sure if there is a DirectX solution.