diff options
Diffstat (limited to 'Mac')
| -rw-r--r-- | Mac/Modules/win/Winmodule.c | 3 | ||||
| -rw-r--r-- | Mac/Modules/win/winsupport.py | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/Mac/Modules/win/Winmodule.c b/Mac/Modules/win/Winmodule.c index 00d58a4..d267248 100644 --- a/Mac/Modules/win/Winmodule.c +++ b/Mac/Modules/win/Winmodule.c @@ -15,6 +15,7 @@ #define GetWindowSpareFlag(win) (((CWindowPeek)(win))->spareFlag) #define GetWindowFromPort(port) ((WindowRef)(port)) #define GetWindowPortBounds(win, rectp) (*(rectp) = ((CWindowPeek)(win))->port.portRect) +#define IsPointerValid(p) (((long)p&3) == 0) #endif #if ACCESSOR_CALLS_ARE_FUNCTIONS /* Classic calls that we emulate in carbon mode */ @@ -3038,7 +3039,7 @@ WinObj_WhichWindow(w) Py_INCREF(it); } else { it = (PyObject *) GetWRefCon(w); - if (it == NULL || ((WindowObject *)it)->ob_itself != w || !WinObj_Check(it)) { + if (it == NULL || !IsPointerValid((Ptr)it) || ((WindowObject *)it)->ob_itself != w || !WinObj_Check(it)) { it = WinObj_New(w); ((WindowObject *)it)->ob_freeit = NULL; } else { diff --git a/Mac/Modules/win/winsupport.py b/Mac/Modules/win/winsupport.py index 6054e26..0359a91 100644 --- a/Mac/Modules/win/winsupport.py +++ b/Mac/Modules/win/winsupport.py @@ -61,6 +61,7 @@ includestuff = includestuff + """ #define GetWindowSpareFlag(win) (((CWindowPeek)(win))->spareFlag) #define GetWindowFromPort(port) ((WindowRef)(port)) #define GetWindowPortBounds(win, rectp) (*(rectp) = ((CWindowPeek)(win))->port.portRect) +#define IsPointerValid(p) (((long)p&3) == 0) #endif #if ACCESSOR_CALLS_ARE_FUNCTIONS /* Classic calls that we emulate in carbon mode */ @@ -91,7 +92,7 @@ WinObj_WhichWindow(w) Py_INCREF(it); } else { it = (PyObject *) GetWRefCon(w); - if (it == NULL || ((WindowObject *)it)->ob_itself != w || !WinObj_Check(it)) { + if (it == NULL || !IsPointerValid((Ptr)it) || ((WindowObject *)it)->ob_itself != w || !WinObj_Check(it)) { it = WinObj_New(w); ((WindowObject *)it)->ob_freeit = NULL; } else { |