[HELP] How to make hacks?

How to make hacks?
Please help me

what is what i wrote:
[php]
#include <windows.h>
bool IsGameReadyForHook()
{
if( GetModuleHandleA( "d3d9.dll" ) != NULL
&& GetModuleHandleA( "ClientFX.fxd" ) != NULL
&& GetModuleHandleA( "CShell.dll" ) != NULL )
return true;
return false;
}
void __cdecl PushToConsole( const char* szCommand )
{
DWORD *LTClient = ( DWORD* )( 0x3778BFB0 );
void* CONoff = ( void* )*( DWORD* )( *LTClient + 0x208 );
__asm
{
push szCommand;
call CONoff;
add esp, 4;
}
}
void main()
{
while(true)
{
PushToConsole("ShowFps 1");
}
}
DWORD WINAPI HackThread(LPVOID)
{
while( !IsGameReadyForHook() )
Sleep(100);
main();
return 0;
}
BOOL WINAPI DllMain ( HMODULE hDll, DWORD dwReason, LPVOID lpReserved )
{
DisableThreadLibraryCalls(hDll);
if ( dwReason == DLL_PROCESS_ATTACH )
{
CreateThread(NULL, NULL, HackThread, NULL, NULL, NULL);
}
return TRUE;
}
[/php]
But, when I entered the game after the loading screen the game closes.