How to load BitMap on a Button which is a menber of DialogBox

[Kiran]

I have created a Dialog box with Buttons ..I want to load Bitmap on the buttons .We can accomplish this task in two ways one is declare the Button as CButton member variable & use the CBUtton functions & other way is declare local CButton variable & using (CButton*)GetDlgItem(<ID of button>).Which method is the best solution .. Please give me the reason why

Thanx
kiran