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Message from discussion Function pointer, is this possible?
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lil...@dcccd.edu  
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 More options Jun 16 2009, 1:38 pm
Newsgroups: comp.lang.c++
From: lil...@dcccd.edu
Date: Tue, 16 Jun 2009 12:38:14 -0500
Local: Tues, Jun 16 2009 1:38 pm
Subject: Function pointer, is this possible?
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Hopefully I can describe this in a clear manner.

I've created a button class with private member

    (int) (* func) (void);

This is set using

void BTN::SetFunction(int (*fnc)(void))
{
        func = fnc;

}

This compiles fine.  The problem comes when I use SetFunction to
assign the function I want to run.  Under straight forward
circumstances this should compile fine.  However, the function I want
to set it to is a public member of another class object, bg of class
Grid.

  btnNew.SetFunction ( bg.SetNewMode );

But I get a repremand to

"use '&Grid::SetNewMode' to create a pointer to member"

Does this mean that I can only specify a static function of a class?
The more I think about this I can see why the compiler chokes on this.
Aside from providing discete functions to wrap the call to
bg.SetNewMode() is there any way to use a function pointer with a
non-static function of a class?

--
Lilith


 
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