Our application crashes on OSX because of the event processing in function
CarbonWindow_MouseProc(ANextHandler: EventHandlerCallRef; at
lcl/interfaces/carbon/carbonprivatewindow.inc:329
if Postpone then
begin
PostponedDown := True;
PostponedDownMsg := TLMMouse(Msg.Message);
Result := CallNextEventHandler(ANextHandler, AEvent);
end
else
begin
...
end;
// interactive design
if (EventKind = kEventMouseDown)
and Assigned(Widget.LCLObject)
and ((csDesigning in Widget.LCLObject.ComponentState) or (Widget is
TCarbonDesignWindow))
and (GetCarbonMouseButton(AEvent) = 1) then
When double clicking on a custom component of ours, an ancestor of the
component gets hidden and something else gets shown. Unfortunately, this
hiding seems to happen in the call to CallNextEventHandler. During this the
Widget gets freed, its Widget.LCLObject overwritten by some non-sense (e.g.
$ffffffff), and Widget.LCLObject.ComponentState crashes.
This doesn't happen on Linux.
1. Is the a bug in Carbon or are we doing something wrong? I don't yet
understand how our hiding code exactly works.
2. What's the best fix?
Regards,
Martin.
--
_______________________________________________
Lazarus mailing list
[email protected]
http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
