Explanation about search symbol interface
已回答

What does the pin symbol in search symbol interface mean?

Also, what does the lock symbol in search file interface mean?
请先登录再写评论。
The pin symbol means const modifier. The lock symbol is a visibility modifier and means “private”. You can find descriptions of all icons in our web help: Symbols and File Types.
I think you have omitted one symbol in the help page. The third symbol in this picture, I think it means pure virtual function.
Thanks for your comment! I created the issue about this in our tracker.