Rval

Syntax

int Rval(int rgb)

Arguments

rgb
Either a 32-bit RGB triple or a 32-bit RGBA quadruple; in either case, the red, green and blue channels are represented as eight bit values, as is the alpha channel in the RGBA form.

Return

A value in the range 0 to 255 inclusive.

Description

The return value represents the value of the red channel, extracted from the triple (or quadruple).

Example

red = Rval(fgColor); // Gives the red channel value from the current foreground color

Also see

Aval,Bval,Gval

Comments

Everyone can add his comments about his experiences with this function here. Tips for using it are welcome, too.