GameHackingBook-GameHackingCode/Chapter7_CodeInjection_DLL/dllmain.cpp

#include <windows.h>


DWORD WINAPI nonTrivialSomething(LPVOID lpParam)
{

	return 1;
}


BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
					 )
{
	switch (ul_reason_for_call)
	{
	case DLL_PROCESS_ATTACH:
		MessageBoxA(NULL, "DLL Attached!\n", "Game Hacking", MB_OK | MB_TOPMOST);
		CreateThread(NULL, 0, &nonTrivialSomething, NULL, 0, NULL); 
		break;
	case DLL_PROCESS_DETACH:
		MessageBoxA(NULL, "DLL Detached!\n", "Game Hacking", MB_OK | MB_TOPMOST);
		break;
	}
	return TRUE;
}