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2-dimensional drawing -- again...

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I looked up glDrawPixels and it functions exaclty the same as glLFBWriteRegion in the Glide API. This draws a rectangle of pixels to the screen with a specified depth. I don''t know if OpenGL uses an aspect ratio though. For example, if I set the video res to 800x600 and I set the drawing point to the top left of the screen, used glDrawPixels to draw a 400x300 rectangle of colour at a depth of zero, will it show that rectangle taking up a quarter of the screen. Any help would be appreciated. Thanx

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