[lazarus] BUGS

[Mattias Gaertner]

On Fri, 07 Mar 2003 11:26:34 +0300
"Vasily I. Volchenko" <Vasily.Volchenko at mstu.edu.ru> wrote:

> At first, there is a bug in forms.pp/screen.inc - header of somewhat
> like SetCorsors method doesn't match (const/not const parameter).

Sounds like an 1.1 bug. I will check it, as soon as 1.1. compiles again.


> Second, TTreeView doesn't work with font - so charset is poor.

That's probably something for the bugtracker.


> And, at last, my project (attached) have resulted in a very strange bug.
> Dump is following
> #0  0x0810c77b in _SYSTEM_ROUND$EXTENDED ()
> #1  0x080aec7d in TGTKOBJECT__SETSCROLLINFO (HANDLE=143870872,
> SBSTYLE=1,
>     valSCROLLINFO=
>       {CBSIZE = 28, FMASK = 103, NMIN = 0, NMAX = 0, NPAGE = 321, NPOS =
> 0, NTRACKPOS = 0}, BREDRAW=false, this=0x815b384) at gtkwinapi.inc:6786

Hmm, looks like the old float conversion bug of fpc. I thought, this was
fixed. Apparently not. It appears on some extrem values, which means, you
found also a bug in the LCL.

Can you send me a failing program or describe how I can reproduce the bug?


Mattias




> #2  0x080dd812 in SETSCROLLINFO (HANDLE=143870872, SBSTYLE=1,
> valSCROLLINFO=
>       {CBSIZE = 28, FMASK = 103, NMIN = 0, NMAX = 0, NPAGE = 321, NPOS =
> 0, NTRACKPOS = 0}, REDRAW=false) at winapi.inc:923
> #3  0x08105a4e in UPDATEVSCROLL () at scrollingwincontrol.inc:193
> #4  0x08105c16 in TCONTROLSCROLLBAR__UPDATESCROLLBAR (this=0x8163724)
>     at scrollingwincontrol.inc:235
> #5  0x081061fb in TSCROLLINGWINCONTROL__UPDATESCROLLBARS
> (this=0x8163014)
>     at scrollingwincontrol.inc:421
> #6  0x081058d4 in TCONTROLSCROLLBAR__AUTOCALCRANGE (this=0x8163754)
>     at scrollingwincontrol.inc:161
> #7  0x08105ef7 in TSCROLLINGWINCONTROL__ALIGNCONTROLS
> (ACONTROL=0x8163a64,
>     ARECT=
>         {LEFT = 0, TOP = 0, RIGHT = 673, BOTTOM = 320, TOPLEFT = {X = 0,
> Y = 0}, BOTTOMRIGHT = {X = 673, Y = 320}}, this=0x8163014)
>     at scrollingwincontrol.inc:341
> #8  0x080ed841 in TWINCONTROL__ALIGNCONTROL (ACONTROL=0x8163a64,
>     this=0x8163014) at wincontrol.inc:1706
> #9  0x080ed704 in TWINCONTROL__INSERTCONTROL (ACONTROL=0x8163a64,
> ---Type <return> to continue, or q <return> to quit---
>     this=0x8163014) at wincontrol.inc:1666
> #10 0x080f0d85 in TCONTROL__SETPARENT (APARENT=0x8163014,
> this=0x8163a64)
>     at control.inc:1631
> #11 0x0805ee0c in TCUSTOMGRID__SETEDITOR (AVALUE=0x8163a64,
> this=0x8163014)
>     at grids.pas:876
> #12 0x08068b6d in TSTRINGGRID__SELECTEDITOR (this=0x8163014) at
> grids.pas:4236
> #13 0x080632d0 in TCUSTOMGRID__MOVEEXTEND (RELATIVE=false, DCOL=1,
> DROW=1,
>     this=0x8163014) at grids.pas:2602
> #14 0x08062509 in TCUSTOMGRID__MOUSEDOWN (BUTTON=MBLEFT, SHIFT=Invalid
> C/C++ type code 10 in symbol table.
> )
>     at grids.pas:2257
> #15 0x080f0039 in TCONTROL__DOMOUSEDOWN (MESSAGE=
>       {MSG = 513, KEYS = 1, XPOS = 229, YPOS = 41, POS = {X = 229, Y =
> 41}, RESULT = 0}, BUTTON=MBLEFT, SHIFT=Invalid C/C++ type code 10 in
> symbol table.
> ) at control.inc:950
> #16 0x080f00c8 in TCONTROL__WMLBUTTONDOWN (MESSAGE=
>       {MSG = 513, KEYS = 1, XPOS = 229, YPOS = 41, POS = {X = 229, Y =
> 41}, RESULT = 0}, this=0x8163014) at control.inc:979
> #17 0x08112cc9 in _SYSTEM_TOBJECT_$_DISPATCH$formal ()
> #18 0x080effc2 in TCONTROL__WNDPROC (THEMESSAGE=
>       {MSG = 513, WPARAM = 1, LPARAM = 2687205, RESULT = 0, WPARAMLO =
> 1, WPARAMHI = 0, LPARAMLO = 229, LPARAMHI = 41, RESULTLO = 0, RESULTHI =
> 0},
>     this=0x8163014) at control.inc:922
> #19 0x080ecf62 in TWINCONTROL__WNDPROC (MESSAGE=
>       {MSG = 513, WPARAM = 1, LPARAM = 2687205, RESULT = 0, WPARAMLO =
> 1, WPARAM---Type <return> to continue, or q <return> to quit---
> HI = 0, LPARAMLO = 229, LPARAMHI = 41, RESULTLO = 0, RESULTHI = 0},
>     this=0x8163014) at wincontrol.inc:1329
> #20 0x0806142d in TCUSTOMGRID__WNDPROC (THEMESSAGE=
>       {MSG = 513, WPARAM = 1, LPARAM = 2687205, RESULT = 0, WPARAMLO =
> 1, WPARAMHI = 0, LPARAMLO = 229, LPARAMHI = 41, RESULTLO = 0, RESULTHI =
> 0},
>     this=0x8163014) at grids.pas:1833
> #21 0x0806c62a in DELIVERMESSAGE (TARGET=0x8163014, AMESSAGE=void)
>     at gtkproc.inc:1080
> #22 0x08071fd2 in DELIVERMOUSEDOWNMESSAGE (WIDGET=0x8934f80,
> EVENT=0x8941478,
>     AWINCONTROL=0x8163014) at gtkcallback.inc:1007
> #23 0x0807206e in GTKMOUSEBTNPRESS (WIDGET=0x8934f80, EVENT=0x8941478,
>     DATA=0x8163014) at gtkcallback.inc:1061
> #24 0x40232b26 in gtk_marshal_BOOL__POINTER () from
> /usr/lib/libgtk-1.2.so.0
> #25 0x40277e16 in gtk_signal_remove_emission_hook ()
>    from /usr/lib/libgtk-1.2.so.0
> #26 0x40276f3b in gtk_signal_handlers_destroy () from
> /usr/lib/libgtk-1.2.so.0
> #27 0x40274b8e in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
> #28 0x402c0ba4 in gtk_widget_event () from /usr/lib/libgtk-1.2.so.0
> #29 0x40231a7f in gtk_propagate_event () from /usr/lib/libgtk-1.2.so.0
> #30 0x40231224 in gtk_main_do_event () from /usr/lib/libgtk-1.2.so.0
> #31 0x40108985 in gdk_flush () from /usr/lib/libgdk-1.2.so.0
> #32 0x403093ee in g_idle_remove_by_data () from
> /usr/lib/libglib-1.2.so.0
> #33 0x40309199 in g_idle_remove_by_data () from
> /usr/lib/libglib-1.2.so.0
> ---Type <return> to continue, or q <return> to quit---
> #34 0x403080e3 in g_main_iteration () from /usr/lib/libglib-1.2.so.0
> #35 0x40231f37 in gtk_main_iteration_do () from /usr/lib/libgtk-1.2.so.0
> 
> #36 0x08096ebf in TGTKOBJECT__HANDLEEVENTS (this=0x815b384)
>     at gtkobject.inc:770
> #37 0x08096ff6 in TGTKOBJECT__WAITMESSAGE (this=0x815b384) at
> gtkobject.inc:828
> #38 0x08108c29 in TAPPLICATION__IDLE (this=0x815b274) at
> application.inc:278
> #39 0x0810959c in TAPPLICATION__HANDLEMESSAGE (this=0x815b274)
>     at application.inc:616
> #40 0x0810962e in TAPPLICATION__RUN (this=0x815b274) at
> application.inc:661
> #41 0x0811b81a in main () at planexp.dpr:23
>