+ // check for change page number ("page_X" or "page_XX") (optional)
+ if (strPrefix(s_ptr, pattern_2))
+ {
+ s_ptr += strlen(pattern_2);
+
+ if (*s_ptr >= '0' && *s_ptr <= '9')
+ {
+ int gic_page_nr = (*s_ptr++ - '0');
+
+ if (*s_ptr >= '0' && *s_ptr <= '9')
+ gic_page_nr = 10 * gic_page_nr + (*s_ptr++ - '0');
+
+ if (gic_page_nr < 1 || gic_page_nr > MAX_CHANGE_PAGES)
+ return ANIM_EVENT_NONE;
+
+ // change page stored as 1 to 32 (0 means "all change pages")
+
+ result |= gic_page_nr << ANIM_EVENT_PAGE_BIT;
+ }
+ else
+ {
+ // invalid animation part number specified
+
+ return ANIM_EVENT_NONE;
+ }
+ }
+