void __fastcall TForm1::Button4Click(TObject *Sender)
{
        int aa;
        aa = 123;

        Memo2->Text = IntToHex(aa);
}

이렇게 했는데요..
에러가나요..


[C++ Error] ImgView.cpp(441): E2285 Could not find a match for 'IntToHex(int)'

왜그런가요??