I found this solution (it run ok) :
DEFINE FONT oFnt NAME "MS Sans Serif" SIZE 0,-24
DEFINE BUTTONBAR oBar OF oWnd SIZE 60, 60 2007
oBar:bPainted = { ||;
DrawText2(oBar:hDC, oFnt:hFont, 1, "Testing on ButtonBar 2007 Office look" ,;
0, 400 , 500, 500, CLR_WHITE ) }
.....
FUNCTION DrawText2( hDC, hFont, nBkMode, cText, nTop, nLeft, nWidth, nHeight,color )
LOCAL hFontOld:= SelectObject( hDC, hFont )
LOCAL nBkOld := SetBkMode( hDC, nBkMode )
SetTextColor( hDC, color )
DrawText( hDC, cText, { nTop, nLeft, nTop+nWidth, nLeft+nHeight } )
SelectObject( hDC, hFontOld )
SetBkMode( hDC, nBkOld )
RETURN( NIL )