getr83alleg
Extract a color component from the specified pixel format. allegro game programming library.
Usage
#include <allegro.h>
int getr8(int c);
int getg8(int c);
int getb8(int c);
int getr15(int c);
int getg15(int c);
int getb15(int c);
int getr16(int c);
int getg16(int c);
int getb16(int c);
int getr24(int c);
int getg24(int c);
int getb24(int c);
int getr32(int c);
int getg32(int c);
int getb32(int c);
Overview
Given a color in a display dependent format, these functions extract one of the red, green, or blue components (ranging 0-255). Example:
int r, g, b, color_value; color_value = _getpixel15(screen, 100, 100); r = getr15(color_value); g = getg15(color_value); b = getb15(color_value);
Releases
4 releases since Debian 3.1 (Sarge); the text changed 2 times.