How to make my toolbar button to use my own icons/images?

Question

Currently the code here is using IE6's button icons. How can I point this button to use other image/icon that I create myself?

TBBUTTONINFO inf;
inf.cbSize=sizeof(inf);
inf.dwMask = TBIF_IMAGE;
inf.iImage = 1;
SendMessage(tmp, TB_SETBUTTONINFO, m_buttonID, (LPARAM)(&inf));