concatenate 3 HEX values to RGB?

[Swift Curse]

Im trying to concatenate three hex values(redval,greenval,blueval) into a RGB Value(0xFFFFFF) is this possible? I've been trying for a while and it just wont work...(i already googled for help and still couldn't find anyone who has successfully done it.

 

[PaulStoffregen]

int color = (redval << 16) | (greenval << 8) | (blueval);

 

[Swift Curse]

ummm seems to out put just a number from 0-255.

perhaps how im converting to hex isnt right?

redval = (redval, HEX);

ah its not right its just giving the value of "16"

 

[PaulStoffregen]

I do not understand exactly what you need.

 

[Swift Curse]

okay so here is what i have.

I have three potentiometer each with a integer variable(redval,greenval,blueval) with a value between 0-255.
What i want to do is turn these three variables into a color code( ie. 0x00FF00 or 0xFFFFFF) that is represented by the potentiometers.

Does that explain it better?

 

[MichaelMeissner]

I would imagine:

unsigned long color_code;
// ...
color_code = ((((unsigned long)(redval & 0xff)) << 16)
	      | (((unsigned long)(greenval & 0xff)) << 8)
	      | ((unsigned long)(blueval & 0xff)));