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comparison src/scrollbar-msw.c @ 3482:20773f9b7bc0

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[xemacs-hg @ 2006-06-29 16:58:59 by james] Check scrollbar instance data for NULLness before dereferencing. <m31wt77vcf.fsf@jerrypc.cs.usu.edu>
author james
date Thu, 29 Jun 2006 16:59:00 +0000
parents b7f26b2f78bd
children 16112448d484
comparison
equal deleted inserted replaced
3481:71532ccbd8e3 3482:20773f9b7bc0
88 } 88 }
89 89
90 static void 90 static void
91 mswindows_free_scrollbar_instance (struct scrollbar_instance *sb) 91 mswindows_free_scrollbar_instance (struct scrollbar_instance *sb)
92 { 92 {
93 void *opaque =
94 (void *) qxeGetWindowLong (SCROLLBAR_MSW_HANDLE (sb), GWL_USERDATA);
95 Lisp_Object ptr;
96
97 ptr = VOID_TO_LISP (opaque);
98 assert (OPAQUE_PTRP (ptr));
99 ptr = Fremhash (ptr, Vmswindows_scrollbar_instance_table);
100 assert (!NILP (ptr));
101 DestroyWindow (SCROLLBAR_MSW_HANDLE (sb));
102 if (sb->scrollbar_data) 93 if (sb->scrollbar_data)
103 xfree (sb->scrollbar_data, void *); 94 {
95 void *opaque =
96 (void *) qxeGetWindowLong (SCROLLBAR_MSW_HANDLE (sb), GWL_USERDATA);
97 Lisp_Object ptr;
98
99 ptr = VOID_TO_LISP (opaque);
100 assert (OPAQUE_PTRP (ptr));
101 ptr = Fremhash (ptr, Vmswindows_scrollbar_instance_table);
102 assert (!NILP (ptr));
103 DestroyWindow (SCROLLBAR_MSW_HANDLE (sb));
104 xfree (sb->scrollbar_data, void *);
105 }
104 } 106 }
105 107
106 static void 108 static void
107 unshow_that_mofo (void *handle) 109 unshow_that_mofo (void *handle)
108 { 110 {