[Help]whats wrong with my code?

#include <stdio.h>
#include <windows.h>
DWORD *pAddy;
DWORD AmmoAddy;

DWORD GetAddress(DWORD addie, LPCSTR module)
{
	if(GetModuleHandle(module)!=NULL)
	{
		DWORD addie1=(DWORD)GetModuleHandle(module);
		DWORD addie2=addie;
		DWORD address = addie1+addie2;
		return (address);
	}
	else
	return NULL;
}

void ammo() 
{
	pAddy = (DWORD*)GetAddress(0x716A34,"server.dll");
	if(pAddy = 0)
	{
	pAddy = (DWORD*)GetAddress(0x716274,"server.dll");
	}
	 AmmoAddy = (*pAddy + 0x7c8);//AmmoAddy is contents of pAddy + offsett
	 int *Ammo = (int*)(AmmoAddy);//Ammo is now the contents of AmmoAddy
	 for(;;)
	 {
		 *Ammo = 40;
		 Sleep(20);
	 }

}

void thread()
{
	for(;;)
	{
		if(GetAsyncKeyState(VK_NUMPAD1)&1)
		{
		ammo();
		}
		Sleep(50);
	}
}

	BOOL WINAPI DllMain(HINSTANCE module, DWORD dwReason, LPVOID lpvReserved)
{
   if(dwReason == DLL_PROCESS_ATTACH)
   {
       CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)thread, NULL, NULL, NULL);
   }
return TRUE;
}