Illegal character in format string (Windows XP)
lazarus / 13-General

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OnixJr · 2008-01-23 00:38

Hi friends,

recently I downloaded PeaZip and when running (unzip some file) I
receive the message "illegal character in format string"... OK, I
decided wait for next release of them...

But today, I drop an TDBCalendar and I receive: "Error creating
component TDBCalendar. Illegal character in format string"... (first I
updated Lazarus with last SVN revision)... with TCalendar I get the
same error.

I search in forum and mantis, but I get none result...

My question is: is this a lazarus bug or a "non-finished"
implementation?

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Bart · 2008-01-24 08:41

Try to create it at runtime, then you can debug the code to see where
it goes wrong.
This way we can see where the problem is.

Bart

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OnixJr · 2008-01-24 13:49

OK, I did...

I has created a TDBCalendar with simple code:

Code: [Select]
procedure TForm1.Button1Click(Sender: TObject);
begin
  MyDBCalendar := TDBCalendar.Create(Self);
  MyDBCalendar.Parent := Self;
end;


When the button is clicked, an exception occur and I need found the
file "except.inc" (in source/rtl/inc directory)...

The cursor stop in (begin line):

Code: [Select]
Function fpc_Raiseexception (Obj : TObject; AnAddr,AFrame : Pointer) :
TObject;[Public, Alias : 'FPC_RAISEEXCEPTION']; compilerproc;
var
  _ExceptObjectStack : PExceptObject;
  _ExceptAddrstack : PExceptAddr;
begin
{$ifdef excdebug}
  writeln ('In RaiseException');
{$endif}
  fpc_Raiseexception:=nil;
  fpc_PushExceptObj(Obj,AnAddr,AFrame);
  _ExceptAddrstack:=ExceptAddrStack;
  If _ExceptAddrStack=Nil then
    DoUnhandledException;
  _ExceptObjectStack:=ExceptObjectStack;
  if (RaiseProc <> nil) and (_ExceptObjectStack <> nil) then
    with _ExceptObjectStack^ do
      RaiseProc(FObject,Addr,FrameCount,Frames);
  longjmp(_ExceptAddrStack^.Buf^,FPC_Exception);
end;



Executing in GDB ([gdb "C:\project1.exe"] ... [run]) the message
appear too [OK CANCEL], but if click in OK the program continue
normally and when it stoped, gdb give "Program exited normally". (the
program not crash when message appear).

Somebody could reproduce it too?

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OnixJr · 2008-01-24 13:57

OK, I think I found the error...
I think it's because of the Windows XP Service Pack 2 (Windows SP2
have a bug? =)...

See the screen:

(http://img233.imageshack.us/img233/561/clipboard01oz7.png)

I will test on Windows 2000 and post again the outcome ...

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OnixJr · 2008-01-24 14:20

OK, I fix the problem...

Im my regional options (in control panel), date format is: "M/d/aaaa"
(a = ano [year in portuguese])
I change it to "M/d/aa" and now is working...
I change it again to "M/d/aaaa" and continue working (I give up of
trying to understand the MS-Windows =)

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Phil · 2008-01-24 15:21

Quote from: "OnixJr"OK, I fix the problem...

Im my regional options (in control panel), date format is: "M/d/aaaa"
(a = ano [year in portuguese])
I change it to "M/d/aa" and now is working...
I change it again to "M/d/aaaa" and continue working (I give up of
trying to understand the MS-Windows =)

Does M/d/yyyy work? It looks like Windows is interpreting "aaaa" as a
literal. Maybe it uses "y" as a universal format specifier.

Thanks.

-Phil

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OnixJr · 2008-01-24 17:39

No Phil... if use "y" in format specifier, Windows [in portuguese
version] not accept (message: invalid format)...

Thanks!

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Phil · 2008-01-24 18:34

Quote from: "OnixJr"No Phil... if use "y" in format specifier, Windows
[in portuguese version] not accept (message: invalid format)...

It looks like you're not alone in hitting this problem:

http://forums.asp.net/p/257052/257814.aspx

You might do some googling to see if anyone has found a workaround. I
found several other posts where people are asking about this, but no
answers.

At least it doesn't appear to be a problem with Free Pascal's RTL.

Thanks.

-Phil