libbluray LoadLibraryEx

bdj.c

static void *_load_dll(const wchar_t *lib_path, const wchar_t *dll_search_path)
{
    void *result;

    PVOID WINAPI (*pAddDllDirectory)   (PCWSTR);
    BOOL  WINAPI (*pRemoveDllDirectory)(PVOID);
    pAddDllDirectory    = (__typeof__(pAddDllDirectory))    GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "AddDllDirectory");
    pRemoveDllDirectory = (__typeof__(pRemoveDllDirectory)) GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "RemoveDllDirectory");

    if (pAddDllDirectory && pRemoveDllDirectory) {

        result = LoadLibraryExW(lib_path, NULL,
                               LOAD_LIBRARY_SEARCH_SYSTEM32);

        if (!result) {
            PVOID cookie = pAddDllDirectory(dll_search_path);
            result = LoadLibraryExW(lib_path, NULL,
                                    LOAD_LIBRARY_SEARCH_SYSTEM32 |
                                    LOAD_LIBRARY_SEARCH_USER_DIRS);
            pRemoveDllDirectory(cookie);
        }
    } else {
        result = LoadLibraryW(lib_path);
        if (!result) {
            SetDllDirectoryW(dll_search_path);
            result = LoadLibraryW(lib_path);
            SetDllDirectoryW(L"");
        }
    }

    return result;
}