How I can add an image in to apiGroup?

is there a way ? Please help.

public static int AddListViewGroup(OutlookLikeGrid lst, string text, int index){

LVGROUP apiGroup;

int ptrRetVal;

try{

if(lst == null){ return -1; }

apiGroup = new LVGROUP();

apiGroup.mask = LVGF_GROUPID | LVGF_HEADER | LVGF_STATE;

apiGroup.pszHeader = text;

apiGroup.cchHeader = apiGroup.pszHeader.Length;

apiGroup.iGroupId = index;

apiGroup.stateMask = LVGS_NORMAL;

apiGroup.state = LVGS_NORMAL;

apiGroup.cbSize = Marshal.SizeOf(typeof(LVGROUP));

ptrRetVal = (int)SendMessage(lst.Handle, OutlookLikeGridAPI.LVM_INSERTGROUP, -1, ref apiGroup);

return ptrRetVal;

}

catch(Exception ex){

throw new System.Exception("An exception in OutlookLikeGridAPI.AddListViewGroup occured: " + ex.Message);

}

}