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Re: How to use callbacks [message #45867 is a reply to message #45865]

Fri, 15 January 2016 20:12

Oblivion
Messages: 1204
Registered: August 2007

Senior Contributor

In order to use THISBACK macro(s), which actually expands to callback(this, &CLASSNAME::foo) and other variants, where foo should be a method (memeber) of the CLASS pointed with "this" pointer, you simply need to add the following line to your class' declaration.

typedef Saisie CLASSNAME;

Now, of course you can also use a (1) non-member function as a callback or a (2) public method of another object, without defining a CLASSNAME (type).

E.g.,


1) callback(&foo)

2) callback(&cpp_object, &other_cpp_object::foo)

See U++ documents and reference examples (there is a "Callback" named example code in reference examples.)

Regards,

Oblivion

Github page: https://github.com/ismail-yilmaz
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[Updated on: Fri, 15 January 2016 20:38]

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