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View Full Version : PLEASE HELP, URGENT! GetColorPixel?



lgnepo
09-21-2002, 01:02 PM
Is there a function that tell us what the color of a specific pixel is on a screen?
For example, if I want to know the color of the pixel located at x=100, y=100?
I will appreciate your help.
Thanks!
LG

tinak
09-21-2002, 03:19 PM
I think glReadPixels can pick up a single pixel. I've only used it for a whole screen but you could try something like the following:

GLubyte color[3];
glReadPixels(x,y,1,1,GL_RGB,GL_UNSIGNED_BYTE,color );

The GL_RGB option tells it to get all 3 color settings. You can change this to get individual colors if you wish.

Tina