[wxMac carbon] ScrollBars Problem

[Manfred]

Hi all

I try to port my app fromm msw (working fine)
but a have some problème with scroll bars

1:I need to call this function
MacCreateScrollBars( wxVSCROLL | wxHSCROLL ) ;

I use this for the contructor of my one of my window

MKC_Arbre::MKC_Arbre(MKC_Client *parent , const wxString& title,int
drap)wxMDIChildFrame( parent, wxID_ANY, title, wxDefaultPosition,
wxDefaultSize,
wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE |
 wxVSCROLL | wxHSCROLL )