// gameSettings
struct gameSettings : WithSettingsWindow<TopWindow>
{
	
	
	
	void Exit() {
        if (PromptOKCancel("Cancel changes to settings?") == 1)
            { Break(); }
    }
	
	CANCELBUTTON=callback(Exit);
	
	gameSettings()
	{
		CtrlLayout(*this, "Game Settings");
	}
};

C:\MyApps\BrainBox\main.cpp(25) : error C3867: 'gameSettings::Exit': function call missing argument list; use '&gameSettings::Exit' to create a pointer to member
C:\MyApps\BrainBox\main.cpp(25) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\MyApps\BrainBox\main.cpp(25) : error C2864: 'gameSettings::CANCELBUTTON' : only static const integral data members can be initialized within a class

// gameSettings
struct gameSettings : WithSettingsWindow<TopWindow>
{
	typedef gameSettings CLASSNAME;   // This is new

// gameSettings
struct gameSettings : WithSettingsWindow<TopWindow>
{
	typedef gameSettings CLASSNAME;
	
	void Exit() {
		if (PromptOKCancel("Cancel changes to settings?"))
			{ RejectBreak(IDCANCEL); }		
	}
	
	gameSettings()
	{
		CtrlLayout(*this, "Game Settings");
		
		CANCELBUTTON <<= THISBACK(Exit);
	}
};