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Author Topic: Problem passing around an instance of sf::RenderWindow  (Read 2501 times)

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Wibbs

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Problem passing around an instance of sf::RenderWindow
« on: October 26, 2009, 04:46:59 pm »
Hi,

I'm sorry if this is a silly question, but I can't get my head around how to pass a reference or pointer to my sf::RenderWindow instance.  

I have a VideoManager class which holds a sf::RenderWindow private member variable.  How do I write a get function that will give other classes access to this variable? I've tried passing by reference and pointeres in various combinations, but whatever I try brings up the error:

cannot access private member declared in class 'sf::NonCopyable

which I am guessing is something to do with a singleton implementaiton within SFML.  

I would be grateful for any pointers, as I feel I'm missing something obvious here...

Thanks,

Wibbs

Laurent

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Problem passing around an instance of sf::RenderWindow
« Reply #1 on: October 26, 2009, 05:13:00 pm »
You get this error because you try to pass your window by value (i.e. a copy of it), which is for obvious reasons not allowed.

You must return a reference:
Code: [Select]
sf::RenderWindow& GetWindow() {return this->window;}
Laurent Gomila - SFML developer

Wibbs

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Problem passing around an instance of sf::RenderWindow
« Reply #2 on: October 26, 2009, 05:46:07 pm »
Thanks for the quick reply.  Turns out my mistake was actually because of confusion using boost smart pointers rather than directly with SFML, and it was trying to make a copy of an object without me realising it - all sorted now though.

Wibbs

 

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