I'm using a custom drawn TListBox. Every _other_ time I go to tab on my
form it's crashing with this error. It's not happening during my
painting of the TListBox though - it happens afterwards apparently. All
lines references are part of Lazarus and not my code, but I won't
immediately rule out a bug on my part.
Any ideas of what to look for?
Here's a backtrace:
ERROR in gtk-interface: TGtkListStringList.Get Out of bounds.
Creating gdb catchable error:
Program received signal SIGFPE, Arithmetic exception.
0x0811e0e0 in RAISEEXCEPTION (MSG=0x8268528) at gtkproc.inc:540
540 gtkproc.inc: No such file or directory.
in gtkproc.inc
Current language: auto; currently pascal
(gdb) bt full
#0 0x0811e0e0 in RAISEEXCEPTION (MSG=0x8268528) at gtkproc.inc:540
No locals.
#1 0x080cdad0 in TGTKLISTSTRINGLIST__GETLISTITEM (INDEX=-1,
this=0xb7b46f14)
at gtklistsl.inc:697
result = (PGTKLISTITEM) 0x0
GETLISTITEM = (PGTKLISTITEM) 0x0
RESULT = (PGTKLISTITEM) 0x0
#2 0x080cd99a in TGTKLISTSTRINGLIST__GETOBJECT (INDEX=-1,
this=0xb7b46f14)
at gtklistsl.inc:659
result = (^TOBJECT) 0x0
LISTITEM = (PGTKLISTITEM) 0x816016d
GETOBJECT = (^TOBJECT) 0x0
RESULT = (^TOBJECT) 0x0
#3 0x0807a0b6 in TFRMMAIN__CATLISTCLICK (SENDER=0xb7b99248,
this=0xb7b816a8)
at unitmain.pas:940
I = 138468192
TEMPCAT = (^TCHKCATEGORY) 0x0
CATNAME = (ANSISTRING) 0x0
SUBCATNAME = (ANSISTRING) 0x0
TEMPSTR = (ANSISTRING) 0x0
#4 0x08110916 in TCONTROL__CLICK (this=0xb7b99248) at control.inc:1857
No locals.
#5 0x0815fde0 in TCUSTOMLISTBOX__DOSELECTIONCHANGE (USER=true,
this=0xb7b99248) at customlistbox.inc:401
No locals.
#6 0x0815f916 in TCUSTOMLISTBOX__LMSELCHANGE (THEMESSAGE=void,
this=0xb7b99248) at customlistbox.inc:239
No locals.
#7 0x0805ce47 in SYSTEM_TOBJECT_$__DISPATCH$formal ()
No symbol table info available.
#8 0x0811021e in TCONTROL__WNDPROC (THEMESSAGE=
{MSG = 564, WPARAM = 0, LPARAM = 0, RESULT = 0, WPARAMLO = 0,
WPARAMHI = 0, LPARAMLO = 0, LPARAMHI = 0, RESULTLO = 0, RESULTHI = 0},
this=0xb7b99248)
at control.inc:1534
FORM = (^TCUSTOMFORM) 0x832cc60
#9 0x08107bf9 in TWINCONTROL__WNDPROC (MESSAGE=
{MSG = 564, WPARAM = 0, LPARAM = 0, RESULT = 0, WPARAMLO = 0,
WPARAMHI = 0, LPARAMLO = 0, LPARAMHI = 0, RESULTLO = 0, RESULTHI = 0},
this=0xb7b99248)
at wincontrol.inc:3365
FORM = (^TCUSTOMFORM) 0xbfec9e01
#10 0x081248e5 in DELIVERMESSAGE (TARGET=0xb7b99248, AMESSAGE=void)
at gtkproc.inc:3469
result = 38926
DELIVERMESSAGE = 38926
RESULT = 38926
---Type <return> to continue, or q <return> to quit---
#11 0x081302aa in GTKLISTBOXSELECTIONCHANGEDAFTER (WIDGET=0x83e90b8,
DATA=0xb7b99248) at gtkcallback.inc:3131
result = true
MESS = {MSG = 564, WPARAM = 0, LPARAM = 0, RESULT = 0, WPARAMLO =
0,
WPARAMHI = 0, LPARAMLO = 0, LPARAMHI = 0, RESULTLO = 0, RESULTHI = 0}
GTKLISTBOXSELECTIONCHANGEDAFTER = true
RESULT = true
#12 0xb7dc87b3 in gtk_marshal_NONE__NONE () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#13 0xb7dfc2f5 in gtk_signal_connect_while_alive ()
from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#14 0xb7dfd251 in gtk_signal_emit_stop_by_name () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#15 0xb7dfda59 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#16 0xb7dc4457 in gtk_list_scroll_vertical () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#17 0xb7dc87b3 in gtk_marshal_NONE__NONE () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#18 0xb7dfc2f5 in gtk_signal_connect_while_alive ()
from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#19 0xb7dfd3e3 in gtk_signal_emit_stop_by_name () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#20 0xb7dfda59 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#21 0xb7db5fdf in gtk_item_deselect () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#22 0xb7dc54cb in gtk_list_item_deselect () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#23 0xb7dc42fd in gtk_list_scroll_vertical () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#24 0xb7dc87b3 in gtk_marshal_NONE__NONE () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#25 0xb7dfc2f5 in gtk_signal_connect_while_alive ()
from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#26 0xb7dfd3e3 in gtk_signal_emit_stop_by_name () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#27 0xb7dfda59 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#28 0xb7db5f8f in gtk_item_select () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#29 0xb7dc54a8 in gtk_list_item_select () from /usr/lib/libgtk-1.2.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#30 0xb7dc2fa4 in gtk_list_undo_selection () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#31 0xb7dc8664 in gtk_marshal_NONE__POINTER () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#32 0xb7dfd336 in gtk_signal_emit_stop_by_name () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#33 0xb7dfda59 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#34 0xb7dbf590 in gtk_list_select_child () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#35 0xb7dc0af0 in gtk_list_set_selection_mode () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#36 0xb7dc8664 in gtk_marshal_NONE__POINTER () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#37 0xb7dfd336 in gtk_signal_emit_stop_by_name () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#38 0xb7dfda59 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#39 0xb7d7fb9c in gtk_container_set_focus_child ()
from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#40 0xb7e38d3e in gtk_widget_intersect () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#41 0xb7dc87b3 in gtk_marshal_NONE__NONE () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#42 0xb7dfd419 in gtk_signal_emit_stop_by_name () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#43 0xb7dfda59 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#44 0xb7e34fcc in gtk_widget_grab_focus () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#45 0xb7dc5e8e in gtk_list_item_deselect () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#46 0xb7dc8489 in gtk_marshal_BOOL__POINTER () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#47 0xb7dfd419 in gtk_signal_emit_stop_by_name () from
/usr/lib/libgtk-1.2.so.0
No symbol table info available.
#48 0xb7dfda59 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#49 0xb7e3c246 in gtk_widget_event () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#50 0xb7dc7df0 in gtk_propagate_event () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#51 0xb7dc82c5 in gtk_main_do_event () from /usr/lib/libgtk-1.2.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#52 0xb7f66583 in gdk_event_get () from /usr/lib/libgdk-1.2.so.0
No symbol table info available.
#53 0xb7f95681 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
No symbol table info available.
#54 0xb7f960f6 in g_main_add_poll () from /usr/lib/libglib-1.2.so.0
No symbol table info available.
#55 0xb7dc6ea0 in gtk_main_iteration_do () from /usr/lib/libgtk-1.2.so.0
No symbol table info available.
#56 0x080d2166 in TGTKWIDGETSET__APPWAITMESSAGE (this=0xb7b1e014)
at gtkobject.inc:1798
No locals.
#57 0x0807325f in TAPPLICATION__IDLE (WAIT=true, this=0xb7b26014)
at application.inc:282
DONE = true
#58 0x0807472d in TAPPLICATION__HANDLEMESSAGE (this=0xb7b26014)
at application.inc:912
No locals.
#59 0x08074aa0 in RUNMESSAGE (parentfp=0xbfecbbe0) at application.inc:1029
No locals.
#60 0x080749eb in TAPPLICATION__RUNLOOP (this=0xb7b26014)
at application.inc:1039
No locals.
#61 0x0807c4bf in TWIDGETSET__APPRUN (ALOOP=0x80749ac
<TAPPLICATION__RUNLOOP>,
this=0xb7b1e014) at interfacebase.inc:42
No locals.
#62 0x08074998 in TAPPLICATION__RUN (this=0xb7b26014) at
application.inc:1018
No locals.
#63 0x08053655 in main () at cbt2.lpr:13
No locals.
(gdb)
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