[Customdrawn] Lazdialogs patch

[Felipe Monteiro de Carvalho]

Ummm, I think I was wrong, steping into the code it seams that Dialogs
does not really implement the dialogs, it just makes some
reorganization of the information and in the end it calls
TCDWidgetSet.PromptUser

So this would be a implementation for TCDWidgetSet.PromptUser. Sorry
for the confusion =)

In this case, maybe the routines in lazdialogs should have the same
parameters as TCDWidgetSet.PromptUser

thanks,
-- 
Felipe Monteiro de Carvalho