[Help]DLL inject

#include <cstdio>
#include <windows.h>
#include <tlhelp32.h>

int GetProcessIdByName(char * procName);

int main()
{
	char dllName[] = "NotepadHack.dll";

	printf("DLL Injector\n");
	printf("____________\n");
	printf("\n");
	printf("Openening process notepad++.exe...\n");

	HANDLE hProcess = NULL;
	hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetProcessIdByName("notepad++.exe"));

	if(hProcess == NULL)
	{
		printf("Process could not be opened.\n");
		getchar();
		return 1;
	}
	
	printf("Process opened successfully.\n");

	getchar();

	printf("Injecting DLL...\n");

	LPVOID pLibAddress = GetProcAddress(GetModuleHandle("Kernel32.dll"), "LoadLibraryA");
	LPVOID pDllAddress = VirtualAllocEx(hProcess, NULL, sizeof(dllName), MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
	WriteProcessMemory(hProcess, pDllAddress, dllName, sizeof(dllName), NULL);

	CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)&pLibAddress, pDllAddress, 0, NULL);

	printf("DLL injected successfully.\n");

	printf("Closing process handle...\n");
	CloseHandle(hProcess);

	getchar();
	return 0;
}


int GetProcessIdByName(char * procName)
{
	PROCESSENTRY32 entry;
	int procID = -1;

	HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);

	if(Process32First(hSnapshot, &entry) == TRUE)
	{
		do
		{
			if(stricmp(entry.szExeFile, procName) == 0)
			{
				procID = entry.th32ProcessID;
			}
		}while(Process32Next(hSnapshot, &entry) == TRUE);
	}

	CloseHandle(hSnapshot);

	return procID;
}

#include <windows.h>

HWND hWindow = NULL;

BOOL CALLBACK EnumWindowsProc(HWND hWnd, LPARAM lParam)
{
	hWindow = hWnd;
	return TRUE;
}

DWORD WINAPI StopProcess()
{
	MessageBox(NULL, "This should appear", "NotepadHack", 0);

	EnumWindows((WNDENUMPROC)EnumWindowsProc, NULL);
	
	if(hWindow == NULL)
	{
		MessageBox(NULL, "The window was not found.", "NotepadHack", 0);
		return FALSE;
	}
	HMENU hCurrentMenu = GetMenu(hWindow);
	HMENU hNewMenu = CreateMenu();

	AppendMenu(hCurrentMenu, MF_STRING | MF_POPUP, (unsigned int)hNewMenu, "NotepadHack");
	AppendMenu(hNewMenu, MF_STRING, 2000, "Button");
	DrawMenuBar(hWindow);

	return TRUE;
}

BOOL WINAPI DllMain(HINSTANCE hModule,
					DWORD fdwReason,
					LPVOID lpReserved)
{
	switch(fdwReason)
	{
	case DLL_PROCESS_ATTACH:
		{
			//CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)&StopProcess, NULL, 0, NULL);
			MessageBox(NULL, "Hello World!", "Hack", 0);
		}break;
	}
	return TRUE;
}