now what?? naive question

I think I am being rather naive here.. I hope though that I will still get an answer...
 I have been reading C and C++ and I am in position to say that I know some things.. I finished one of my textbooks yesterday and they sth very simple occured to me..
 How could I possibly colour a single pixel on my screen??
 I don't thing my textbooks would cover sth like this... I am sure that there must be some library that will provide me with the functions to do graphics... how would this function be implemented though? Is there some kind of low level C that is not in my textbook or would such a function have to turn to assembly??

 I thank you in advance you all fine people :)

 Nick
anemosAsked:
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jhanceConnect With a Mentor Commented:
The answer depends on what system you are programming for.

Under MS Windows you have the SetPixel() function.  It, amazingly, sets the color of a pixel on the screen.

Under MSDOS you have access to the screen buffer itself but it's more complicated since you have to get the display hardware into a graphics mode.  Often the programming environment you are using has some sort of graphics lib.

Unix/Linux systems generally use X.  I'm not that familiar with X programming but I suspect that there is a capability similar to the Windows SetPixel function.
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jhanceCommented:
One other thing.  There is NOTHING in either C or C++ language itself that deals specifically with graphics.

That doesn't mean it can't be done, it  just that there must be some extra library that provides the capabilities you are asking for.
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anemosAuthor Commented:
I am sorry for not making myself clear..
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