How to pass objective c++ instance in c++ class [duplicate]

Question

I am following this URL but i have got struck that How can i pass my objective c++(.mm) instance to c++ class. Calling Objective-C method from C++ method?

MyCPPClass.cpp  
#include "MyCPPClass.h"   
#include "MyObject-C-Interface.h"

int MyCPPClass::someMethod (void *objectiveCObject, void *aParameter)     
{  
// To invoke an Objective-C method from C++, use  
// the C trampoline function  
return MyObjectDoSomethingWith (objectiveCObject, aParameter);  
}

How can I call MyCPPClass::someMethod (void *objectiveCObject, void *aParameter) from objective c++(.mm) what can I pass the value for void *objectiveCObject from objective c++(.mm) class.

You gave a nice working link with an explanation yourself, what exactly doesn't work for you? — Gobra
– Gobra, Commented Feb 16, 2017 at 14:10
I am unable to pass objective c instance in .cpp class in method "MyCPPClass::someMethod (void *objectiveCObject, void *aParameter)". How can I pass "void *objectiveCObject" from objective c class. — Abhishek singh
– Abhishek singh, Commented Feb 16, 2017 at 14:14
There's another way that works for me, please see: stackoverflow.com/a/42311096/6539779 — H. Al-Amri
– H. Al-Amri, Commented Feb 18, 2017 at 5:25
What do you mean by "can't pass"? Do you get an error message? — uliwitness
– uliwitness, Commented Mar 4, 2017 at 16:49

Abhishek singh · Accepted Answer · 2017-03-09 10:20:14Z

-1

We can pass instance of objectiveC class to C++  - 

someMethod ((void*)CFBridgingRetain(self),aParameter)

edited Mar 9, 2017 at 10:20

answered Feb 16, 2017 at 15:06

Abhishek singh

4157 silver badges20 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Eel Lee Over a year ago

Hi and welcome to the StackOverflow. I'm afraid that your answer provides no explanation nor context. Could you give a few words explaining what exact problem does your code snippet solves?

CodeMouse92 Over a year ago

While this code may answer the question, providing additional context regarding why and/or how it answers the question would significantly improve its long-term value. Please edit your answer to add some explanation.

Collectives™ on Stack Overflow

How to pass objective c++ instance in c++ class [duplicate]

1 Answer 1

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Linked

Related