osx man page for exscroll

exscroll(3alleg4)						  Allegro manual						 exscroll(3alleg4)

NAME

       exscroll - Mode-X hardware scrolling and split screens. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       Example exscroll

DESCRIPTION

       This  program  demonstrates how to use hardware scrolling.  The scrolling should work on anything that supports virtual screens larger than
       the physical screen.

SEE ALSO

       BITMAP(3alleg4), END_OF_MAIN(3alleg4), RGB(3alleg4), SCREEN_H(3alleg4), SCREEN_W(3alleg4), acquire_bitmap(3alleg4),  allegro_init(3alleg4),
       allegro_message(3alleg4),    clear_keybuf(3alleg4),    create_sub_bitmap(3alleg4),    desktop_palette(3alleg4),	  destroy_bitmap(3alleg4),
       install_keyboard(3alleg4),  keypressed(3alleg4),  rectfill(3alleg4),  release_bitmap(3alleg4),	screen(3alleg4),   scroll_screen(3alleg4),
       set_color(3alleg4), set_gfx_mode(3alleg4), set_palette(3alleg4), vline(3alleg4)

Allegro 							   version 4.4.2						 exscroll(3alleg4)