Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I notice in several API’s, that you may create a struct which is used internally and has nothing. ex:
ALLEGRO_BITMAP *bmp;
...
bmp->(intellesense shows nothing)
how do these types of structures work? are they simply handled like this internally?
REAL_ALLEGRO_BITMAP *realbmp = (REAL_ALLEGRO_BITMAP*)bmp;
or is there a cleaner solution?
Thanks
What you’re looking at is an opaque pointer or opaque data type (link and link). Here’s an SO thread discussing these: What is an opaque value?