Graying a check box in a list box (One for the Guru's)

I'm writing an application which has a listbox full of items. The Style property in the ListBox is set to 1 - CheckBox.

I've written some sub classing code to stop the user unchecking the first item in the list box, but I also want to gray the check box of the first item so it looks disabled.

How do I gray a check box in a list box?


Thanks in advance
:)

If you're subclassing it already then its a doddle. Simply intercept the paint message (I can't remember what it is offhand) and replace the paint routine with your own. You could even draw the whole listbox yourself :D

Have you got any example code on how I should draw a disabled check box?

Cheers
;)