[This code is freaking me out..Help please! :( (VC ++)]

Hi, well..i will not explain the hole thing but, this code its for replacing memory addresses for a game called GunZ (NA version).

I Could compile it, but when in Inject the DLL in the game, i press ALT + A (As in the code), and it should appear a message "Hi Version", but it doesnt ...

Take a look at the code :

mongo001.cpp

// mongo001.cpp: define las rutinas de inicialización del archivo DLL.
//

#include "mongo001.h"
#include "stdafx.h"
#include <windows.h>
#include <iostream>
#include <fstream>
#include <string>
#include "func.h"

/*	GetTwoKeys	*/
#define GetTwoKeys(keyone,keytwo) if(GetAsyncKeyState(keyone) &0x8000 && GetAsyncKeyState(keytwo) &0x8000)

/*	Log	*/
#define Log( name , addr ) fprintf(xLog, name "	:	%.8X\n", addr );

/*	Popad Version	*/
#define MongoVersion 0.1

float TelePos[3] = {0.000000};
bool bQuest = false;

void Echo(const char *szMsg, ...){ //AGREGADA
_asm{
mov eax,ZChatOutput
PUSH 0xFFFFFFFF 
PUSH 0 
PUSH 2 
PUSH szMsg 
call eax
add esp,16
}}

void Main()
{
	while(true)
	{
		/*	Info	*/
		/*	Working	*/
		GetTwoKeys(0x12, 'A'){
				   Echo("Hi version!"); //AGREGADA
			Sleep(500);
		}
	}
}

func.h

#define ZChatOutput 0x0042ABC0;

Please tell me in what i am wrong ...

Thank you very much