Hi,
I am playing with gtkglarea under OS X. One of the test cases, viewlw,
closes a window which often has the focus. When running
outside a debugger the memory pointed to by
MacCarbonEvents::mac_gwind_grabbed often seems to be legit, so the mouse
events code in mouse_motion_handler() gives a sigsev. Inside the
debugger I can confirm that the gdk_window_internal_destroy()
function clears the memory, but then the app does not crash.
The simplest workaround that I have found is to extend the test on line
201 of MacCarbonEvents.c to also test the values of
mac_gwind_grabbed, and confirm that it is valid by comparing
mac_gwind_grabbed to mac_gwind_grabbed->magic
e.g.
if(win_ref && mac_gwind_grabbed && mac_gwin_grabbed ==
mac_gwind_grabbed->magic) {
Ta,
Charles Ballard
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