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Function call

General and Gameplay Programming Programming

Started by ganecj December 01, 2011 02:17 PM

2 comments, last by ganecj 12 years, 4 months ago

ganecj

100

Author

December 01, 2011 02:17 PM

Good day all,

in Opengl , I have a function:

glutDisplayFunc();

Instead of passing a standalone function into it, would it be possible for me to pass in a class function?





for example



class graphic



{



public



        void run();

};











void main ()



{



        class graphic temp;



         glutDisplayFunc( temp.run);

}

SiCrane

11,840

December 01, 2011 02:20 PM

Unfortunately, no.

rip-off

11,000

December 01, 2011 02:51 PM

You can have a global object or pointer, and call methods on it:



graphic *g_graphic = 0;



void runGlobal()

{

    assert(g_graphic);

    g_graphic->run();

}



int main()

{

    graphic graphics;

    g_graphic = &graphics;

    glutDisplayFunc(&runGlobal);

    g_graphic = 0;

}