DOKK / manpages / debian 12 / allegro4-doc / transpose_font.3alleg4.en
transpose_font(3alleg4) Allegro manual transpose_font(3alleg4)

transpose_font - Transposes all characters in a font. Allegro game programming library.

#include <allegro.h>

int transpose_font(FONT *f, int drange)

This function transposes all characters in a font, effectively remapping the font. Example:


FONT *myfont;
FONT *capitals;
...
/* Create a font of only capital letters */
capitals = extract_font_range(myfont, 'A', 'Z');

/* Now transpose the characters in the font so that they will be used */
/* for the lower case letters a-z */
transpose_font(capitals, 'a'-'A');
textout_ex(screen, capitals, "allcaps",
100, 100, makecol(255,255,255), 0);

Returns 0 on success, -1 on failure.

get_font_range_begin(3alleg4), get_font_range_end(3alleg4), merge_fonts(3alleg4), extract_font_range(3alleg4)

version 4.4.3 Allegro