[lazarus] Extending TToolButton Messages

[Martin Smat]

Hi,
In procedure TToolbar.WndProc are defined two messages 
(LM_INSERTTOOLBUTTON and LM_DELETETOOLBUTTON) in CNSendMessage and both 
messages have their second parameter (Data) nil. Can we use this 
parameter for something more usefull?
I suggest in case LM_INSERTTOOLBUTTON the Data be as TTBButton structure 
(Pointer(Message.LParam)) and in case LM_DELETETOOLBUTTON the Data be 
the number of deleted Toolbarbutton (@(Message.WParam)).
This would be very usefull for creating toolbarbuttons in Win32 API.

Martin Smat.