char *convert_ucs_to_utf8(char *input);
char *convert_utf8_to_ucs2(char *input, int *real_strlen);
-uint32_t get_colorpixel(xcb_connection_t *conn, char *hex);
uint32_t get_mod_mask(xcb_connection_t *conn, uint32_t keycode);
xcb_window_t open_input_window(xcb_connection_t *conn, uint32_t width, uint32_t height);
int get_font_id(xcb_connection_t *conn, char *pattern, int *font_height);