libcaptcha/examples/example1.c

#include <stdio.h>
#include <libcaptcha.h>

/*
 * This example simply prints glyphs into
 * png file. Here is nothing but basics
 */
int main() {
  char * str = "😒Hi!";
  char * fontfile = "../ttf/dejavu.ttf";

  lc_fontBuffer *font = lc_create_font(fontfile);
  lc_arrGlyph *arr;
  lc_bmp * bmp;

  if (!font) {
    perror("lc_create_font()");
    return 1;
  }

  arr = lc_str_to_arr(font, str, 38, 0);

  if (!arr) {
    perror("lc_str_to_arr()");
    return 1;
  }

  bmp = lc_create_image(arr);

  if (!bmp) {
    perror("lc_create_image()");
    return 1;
  }

  lc_save_png("./example1.png", bmp);

  lc_free(arr);
  lc_free(bmp);
  lc_free(font);
  return 0;
}