Draws a horizontal line onto the bitmap. allegro game programming library.
#include <allegro.h>
void hline(BITMAP *bmp, int x1, int y, int x2, int color);
Draws a horizontal line onto the bitmap, from point (x1, y) to (x2, y).
Note: hline() is implemented as an alias to another function. See ALLEGRO_NO_VHLINE_ALIAS in the `Differences between platforms' section for details.
vline(3alleg4), line(3alleg4), drawing_mode(3alleg4), makecol(3alleg4), exsprite(3alleg4)