Thread: Function Pointers

This code is heavily simplified.

Basically, it works if I do this line in CTestTask::Start():

MyButton.ChangeFunctionPointer( Func );

But not with

MyButton.ChangeFunctionPointer( Test );

because Test is really CUIButton::Test, and not the same type as Func.

Is there a way to make both of them work?

Code:

class CUIButton : public CUIObject
{
public:
	void Activate(int index=0);
	bool ConditionMet();

	void ChangeFunctionPointer( void (*NewFunction)(void) );
	void ( *Function )( void );
	
};

void CUIButton :: ChangeFunctionPointer( void (*NewFunction)(void) )
{
	Function = NewFunction;
}

void CUIButton :: Activate(int index)
{
	// RUN whatever the button does
	Function();
}

Code:

#pragma once

#include "Engine.h"

class CTestTask : public ITask
{
public:

	AUTO_SIZE;

	bool Start();
	void Update();
	void Stop();

	void Test();

private:

	CSprite MySprite;
	CUIButton MyButton;

};

void Func( void )
{
}

bool CTestTask::Start()
{
	MyButton.ChangeFunctionPointer( Test );
	MySprite.LoadBitmap("Images/TestPic2");
	MyButton.Animation.LoadFrameSet(0,1,"Images/Testpic", 5);
	MyButton.x = 500;
	MyButton.y = 500;

	return true;
}

void CTestTask::Test()
{
	MyButton.Animation.ChangeCurrentFrame(1);
}

>> Is there a way to make both of them work?
Make CUIButton::Test() static.

Go ahead and read through this one time.
http://www.function-pointer.org

gg