about color dialog in property

[joaquim]

Public Property Get NewColor() As OLE_COLOR
    If blnDestroyed = True Then Exit Property
    NewColor = lngNewColor
End Property

Public Property Let NewColor(ByVal vNewValue As OLE_COLOR)
    If blnDestroyed = True Then Exit Property
    lngNewColor = vNewValue
    Call ShowImage
    PropertyChanged "NewColor"
End Property

what is OLE_COLOR?
can i change it for new diferent dialog(like color dialog)?
thanks