[Qt] uclibc + libqt4intf- EAccessViolation : Access violation

[Nataraj S Narayan]

Yikes!!!

Address book code works!

Luckily, I changed the kernel from 2.6.28 to 2.6.30. Now I dont get seg fault.
I mean, the same code gave me segmentation fault on 2.6.28.

BTW these errors remain :-
# ./shapedclock -qws
FT_New_Face failed with index 0 : 2
FT_New_Face failed with index 0 : 2
FT_New_Face failed with index 0 : 2
FT_New_Face failed with index 0 : 2
FT_New_Face failed with index 0 : 2
An unhandled exception occurred at $01054ED0 :
EAccessViolation : Access violation
  $01054ED0 of ../objpas/rtlconsts.pp
  $00009168  TCLOCK__CREATE,  line 72 of shapedclock.pas
  $0000A048  TAPPLICATION__CREATE,  line 318 of shapedclock.pas
  $0000A1AC  main,  line 339 of shapedclock.pas

# ./concentric -qws
start of program
An unhandled exception occurred at $0004C828 :
EAccessViolation : Access violation
  $0004C828 of ../objpas/rtlconsts.pp

regards

Nataraj



On Tue, Feb 2, 2010 at 12:51 AM, Den Jean <Den.Jean at telenet.be> wrote:
> On Monday 01 February 2010 11:41:25 Nataraj S Narayan wrote:
>> #1  0x401c0ab4 in QObject_hook::eventFilter () from /usr/lib/libqt4intf.so
>>
> in embedded, first try a very small c++ app like
> qt-embedded-linux-opensource-src-4.5.3/examples/tutorials/addressbook/part1
> to verify your qt setup
>
> then try a very small freepascal writeln hello world app in fpc (*without* Qt)
>
> then translate the qt tutor to a pascal qt4 app with the binding.(see below)
>
> compiling the Qt libs and the Qt binding with debug info if still problems
>
>
>
> addressbook.lpr:
> http://users.telenet.be/Jan.Van.hijfte/qtforfpc/addressbook.png
>
>
> program addressbook;
>
> {$mode objfpc}{$H+}
>
> uses
>  {$IFDEF UNIX}{$IFDEF UseCThreads}
>  cthreads,
>  {$ENDIF}{$ENDIF}
>  Classes,SysUtils,Types,Qt4;
>
>
> type
>
> TAddressBook = class(TObject)
>  public
>  Handle : QWidgetH;
>  NameLine : QLineEditH;
>  AddressText : QTextEditH;
>  constructor Create;
> end;
>
> constructor TAddressBook.Create;
> var
>  NameLabel : QLabelH;
>  AddressLabel : QLabelH;
>  MainLayout : QGridLayoutH;
>  w : WideString;
> begin
>  Handle:=QWidget_create;
>
>  w:='Name:';
>  NameLabel:=QLabel_Create(@w);
>  NameLine:=QLineEdit_create;
>
>  w:='Address:';
>  AddressLabel:=QLabel_create(@w);
>  AddressText:=QTextEdit_create;
>
>  MainLayout:=QGridLayout_create;
>  QGridLayout_addWidget(MainLayout,NameLabel,0,0);
>  QGridLayout_addWidget(MainLayout,NameLine,0,1);
>  QGridLayout_addWidget(MainLayout,AddressLabel,1,0,QtAlignTop);
>  QGridLayout_addWidget(MainLayout,AddressText,1,1);
>
>  QWidget_setLayout(Handle,MainLayout);
>  w:='Simple Address Book';
>  QWidget_setWindowTitle(Handle, at w);
>  end;
>
> var
>  App : QApplicationH;
>  AddrBook : TAddressBook;
>
> begin
>  App:=QApplication_create(@Argc,Argv);
>  AddrBook:=TAddressBook.Create;
>  QWidget_show(AddrBook.Handle);
>
>  QCoreApplication_exec;
> end.
>
>
>
>
>
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