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Web Cartoon Maker: a Fun Way to Learn C++ Contents Previous Next

Objects as Function Parameters

You probably noticed that internal WCM objects look pretty much like variables. You'll get more familiar with them later after reading about classes. For now I just want to note one simple thing about these objects. You can use these objects as parameters to your functions. You just need to add a special symbol & before a parameter name. For example you can write a function which makes a Boy character to do some actions like this:

#include <boy.h>

void DoActions ( Boy &Who )


Who.Says ( "Hello" );

Sleep ( 0.5 );

Who.Winks ();


void Scene1 ()


Boy Max;

Max.SetVisible ();

DoActions ( Max );


Please note that you need to use & symbol, also called ampersand only in function declaration. You do not need to use this symbol in function calls or when using parameter in a function.

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