Office 2003 combobox colors (themed or not)

[lgaudouen]

Developping a combobox, i want to add an Office 2003 style, working under W2K and XP. All the articles and libraries I found do not really work : hardcoded colors, hardcoded theme selection (only those delivered with XP), approximation too far from the real colors (under XP and/or W2K). Does somebody has ideas on the algorythms to use for the three states of the combox button ? (it seems to me that the standard (not hover, not pressed) button is draw transparently upon the toolbar of WinWord,so the mean to get the colors of this toolbar is also nedeed).