Riremito's API Hook

/*
    API Hooks
*/

HWND (WINAPI *_CreateWindowExA)(DWORD dwExStyle, LPCSTR lpClassName, LPCSTR lpWindowName, DWORD dwStyle, int X, int Y, int nWidth, int nHeight, HWND hWndParent, HMENU hMenu, HINSTANCE hInstance, LPVOID lpParam);
HWND WINAPI CreateWindowExA_Hook(DWORD dwExStyle, LPCSTR lpClassName, LPCSTR lpWindowName, DWORD dwStyle, int X, int Y, int nWidth, int nHeight, HWND hWndParent, HMENU hMenu, HINSTANCE hInstance, LPVOID lpParam){
    if(lpClassName && strstr(lpClassName, "StartUpDlgClass")){
        MapleStory();//wait for unpacking client
    }
    return _CreateWindowExA(dwExStyle, lpClassName, lpWindowName, dwStyle, X, Y, nWidth, nHeight, hWndParent, hMenu, hInstance, lpParam);
}

HANDLE (WINAPI *_CreateMutexExA)(LPSECURITY_ATTRIBUTES lpMutexAttributes, LPCTSTR lpName, DWORD dwFlags, DWORD dwDesiredAccess);
HANDLE WINAPI CreateMutexExA_Hook(LPSECURITY_ATTRIBUTES lpMutexAttributes, LPCTSTR lpName, DWORD dwFlags, DWORD dwDesiredAccess){
    HANDLE hMutex, hDuplicatedMutex;
    if(lpName && strstr(lpName, "WvsClientMtx")){
        hMutex =  _CreateMutexExA(lpMutexAttributes, lpName, dwFlags, dwDesiredAccess);
        DuplicateHandle(GetCurrentProcess(), hMutex, 0, &hDuplicatedMutex, 0, FALSE, DUPLICATE_CLOSE_SOURCE);
        CloseHandle(hDuplicatedMutex);
        AW.AddString(EDIT_LOG, "Mutexを閉じました\r\n");
        return hMutex;
    }
    return _CreateMutexExA(lpMutexAttributes, lpName, dwFlags, dwDesiredAccess);
}

void APIHook(){
    ExportHook user32, kernelbase;
    user32.Init("user32.dll");
    kernelbase.Init("kernelbase.dll");
    user32.Hook("CreateWindowExA", CreateWindowExA_Hook, &_CreateWindowExA);
    kernelbase.Hook("CreateMutexExA", CreateMutexExA_Hook, &_CreateMutexExA);
}