[Lazarus] TButton must now become a custom draw component

[Michael Van Canneyt]

On Thu, 7 Aug 2008, Mattias Gärtner wrote:

> 
> BTW, the new TEdit.OnlyNumber property is a joke, is it not?

I doubt this. 
This is a feature of the WinAPI which Borland simply forgot
to implement all these years. So they finally decided to do it
(it's about 3 lines of code to do so)

Michael.