[wxMac 2.6.3] wxWindowMac::DoClientToScreen returns a point with a negative y

[Laurent Carcone]

Hello,
We currently use the 2.6.3 release for the web browser/editor Amaya (http://www/w3.org/Amaya).
We use a notebook control to manage multiple documents with tabs and the event EVT_CONTEXT_MENU to raise a menu when a user right-click on a tab. That works fine on Linux and Windows but not on Mac OS X (10.3 and 10.4), the function HitTest returns -1 as index for the tab in this case.
We have the following instructions:
   long flags    = 0;
   int page_id   = 0;
   wxPoint point = event.GetPosition();
   page_id   = HitTest(ScreenToClient(point), &flags);
Debugging the code, I found that the problem cames from ScreenToClient and more precisely from the function wxWindowMac::DoClientToScreen that calculates a point with a negative y. If I let the x unchanged and force the y (or ignore the last instruction  if(y) *y -= origin.y; ), the function HitTest returns the right tab index.

What would be the right way to fix that problem ?

Thanks in advance,
-- 
  Laurent Carcone	
  carcone at w3.org              W3C/ERCIM
  +33 (0)4 76 61 52 67        INRIA Rhône-Alpes, 655 Avenue de l'Europe
                              38334 Saint Ismier Cedex - France