Provided by: allegro4-doc_18.104.22.168-1_all
bmp_write_line - Direct access bank switching line selection for writing. Allegro game programming library.
#include <allegro.h> unsigned long bmp_write_line(BITMAP *bmp, int line);
Selects the line of a bitmap that you are going to draw onto.
Returns the address of the selected line for writing.