On Saturday 20 May 2006 23:30, Flávio Etrusco wrote:
> I can't see anything wrong either... Guess we'll need a callstack...
> Out of curiosity, if you comment out the body of the SetHtmlStrings
> method is the AV still raised?
This test sounded like worth trying, so I did - same result.
So I undid it and slapped together a little test program, threw a
TSimpleHTML, a TMEMO and a button on a form, and set the button's onclick to:
SimpleHTML1.HTMLStrings.Assign(Memo1.Lines)
And ran it through gdb.
Here follows the backtrace:
(gdb) run
Starting program: /tmp/project1
Program received signal SIGSEGV, Segmentation fault.
0x08077208 in TFORM1__BUTTON1CLICK (SENDER=0xb7b32f88, this=0xb7b317f8) at
unit1.pas:35
35 SimpleHTML1.HTMLSTrings.Assign(Memo1.Lines);
Current language: auto; currently pascal
(gdb) backtrace
#0 0x08077208 in TFORM1__BUTTON1CLICK (SENDER=0xb7b32f88, this=0xb7b317f8) at
unit1.pas:35
#1 0x0810bc06 in TCONTROL__CLICK (this=0xb7b32f88) at control.inc:1857
#2 0x0816005d in TBUTTONCONTROL__CLICK (this=0xb7b32f88) at
buttoncontrol.inc:57
#3 0x081619f1 in TCUSTOMBUTTON__CLICK (this=0xb7b32f88) at buttons.inc:187
#4 0x08161d9d in TBUTTON__CLICK (this=0xb7b32f88) at buttons.inc:293
#5 0x08161bb8 in TCUSTOMBUTTON__WMDEFAULTCLICKED (MESSAGE=
{MSG = 1031, WPARAM = -1075971580, LPARAM = 138006360, RESULT
= -1075972444, WPARAMLO = 64004, WPARAMHI = 49117, LPARAMLO = 53080, LPARAMHI
= 2105, RESULTLO = 63140, RESULTHI = 49117}, this=0xb7b32f88) at
buttons.inc:242
#6 0x0805ce47 in SYSTEM_TOBJECT_$__DISPATCH$formal ()
#7 0x0810b50e in TCONTROL__WNDPROC (THEMESSAGE=
{MSG = 1031, WPARAM = -1075971580, LPARAM = 138006360, RESULT
= -1075972444, WPARAMLO = 64004, WPARAMHI = 49117, LPARAMLO = 53080, LPARAMHI
= 2105, RESULTLO = 63140, RESULTHI = 49117}, this=0xb7b32f88) at
control.inc:1534
#8 0x08102ee9 in TWINCONTROL__WNDPROC (MESSAGE=
{MSG = 1031, WPARAM = -1075971580, LPARAM = 138006360, RESULT
= -1075972444, WPARAMLO = 64004, WPARAMHI = 49117, LPARAMLO = 53080, LPARAMHI
= 2105, RESULTLO = 63140, RESULTHI = 49117}, this=0xb7b32f88) at
wincontrol.inc:3378
#9 0x0811fd65 in DELIVERMESSAGE (TARGET=0xb7b32f88, AMESSAGE=void) at
gtkproc.inc:3469
#10 0x081bb7ec in GTKWSBUTTON_CLICKED (AWIDGET=0x83aada0, AINFO=0xb7b686f4) at
gtkwsbuttons.pp:117
#11 0xb7dfc877 in gtk_marshal_NONE__NONE () from /usr/lib/libgtk-1.2.so.0
#12 0xb7e2be5a in gtk_signal_remove_emission_hook ()
from /usr/lib/libgtk-1.2.so.0
#13 0xb7e2b16a in gtk_signal_set_funcs () from /usr/lib/libgtk-1.2.so.0
#14 0xb7e29234 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
#15 0xb7d9be1c in gtk_button_clicked () from /usr/lib/libgtk-1.2.so.0
#16 0xb7d9d38a in gtk_button_get_relief () from /usr/lib/libgtk-1.2.so.0
#17 0xb7dfc877 in gtk_marshal_NONE__NONE () from /usr/lib/libgtk-1.2.so.0
#18 0xb7e2b07b in gtk_signal_set_funcs () from /usr/lib/libgtk-1.2.so.0
#19 0xb7e29234 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
#20 0xb7d9bd60 in gtk_button_released () from /usr/lib/libgtk-1.2.so.0
#21 0xb7d9cd26 in gtk_button_get_relief () from /usr/lib/libgtk-1.2.so.0
#22 0xb7dfc64d in gtk_marshal_BOOL__POINTER () from /usr/lib/libgtk-1.2.so.0
#23 0xb7e2b19f in gtk_signal_set_funcs () from /usr/lib/libgtk-1.2.so.0
#24 0xb7e29234 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
#25 0xb7e5efd9 in gtk_widget_event () from /usr/lib/libgtk-1.2.so.0
#26 0xb7dfc4d0 in gtk_propagate_event () from /usr/lib/libgtk-1.2.so.0
#27 0xb7dfb5c1 in gtk_main_do_event () from /usr/lib/libgtk-1.2.so.0
#28 0xb7f70b44 in gdk_wm_protocols_filter () from /usr/lib/libgdk-1.2.so.0
#29 0xb7f9ae75 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#30 0xb7f9b32c in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#31 0xb7f9b4f5 in g_main_iteration () from /usr/lib/libglib-1.2.so.0
#32 0xb7dfb388 in gtk_main_iteration_do () from /usr/lib/libgtk-1.2.so.0
#33 0x080cd0e6 in TGTKWIDGETSET__APPWAITMESSAGE (this=0xb7b70014) at
gtkobject.inc:1798
#34 0x0807330f in TAPPLICATION__IDLE (WAIT=true, this=0xb7b90014) at
application.inc:282
#35 0x0807481d in TAPPLICATION__HANDLEMESSAGE (this=0xb7b90014) at
application.inc:920
---Type <return> to continue, or q <return> to quit---
#36 0x08074c10 in RUNMESSAGE (parentfp=0xbfde03a0) at application.inc:1034
#37 0x08074b5b in TAPPLICATION__RUNLOOP (this=0xb7b90014) at
application.inc:1044
#38 0x0807741f in TWIDGETSET__APPRUN (ALOOP=0x8074b1c <TAPPLICATION__RUNLOOP>,
this=0xb7b70014) at interfacebase.inc:42
#39 0x08074b08 in TAPPLICATION__RUN (this=0xb7b90014) at application.inc:1023
#40 0x08053653 in main () at project1.lpr:16
I cannot see anything usefull there, but maybe somebody else can.
A.J.
--
"there's nothing as inspirational for a hacker as a cat obscuring a bug
by sitting in front of the monitor" - Boudewijn Rempt
A.J. Venter
Chief Software Architect
OpenLab International
www.getopenlab.com
www.silentcoder.co.za
+27 82 726 5103
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