Re: [fpc-pascal] Canvas.TextStyle

[Sven Barth]

On 24.05.2014 13:45, Juha Manninen wrote:

On Sat, May 24, 2014 at 2:26 PM, Sven Barth  wrote:

http://wiki.freepascal.org/User_Changes_2.4.0#Treating_direct-mapped_properties_as_regular_fields


Ok, then this becomes an LCL issue. How to port Delphi code like
   Canvas.TextFlags := Canvas.TextFlags or ETO_RTLREADING
   Canvas.TextFlags := Canvas.TextFlags or LAYOUT_SUPERSCRIPT;

TextStyle was the closest thing to TextFlags I could find.
If nobody knows the answer, I will continue my experiments. I know
this is not a Lazarus list.


I don't know what exactly TextStyle provides, but if it has fields 
similar to the flags of TextFlags the following would be the way to go:


=== code begin ===

var
  t: TextStyle;
begin
  t := Canvas.TextStyle;
  t.RtlReading := True;
  t.SuperScript := True;
  Canvas.TextStyle := t;
end;

=== code end ===

Regards,
Sven
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Re: [fpc-pascal] Canvas.TextStyle

[Juha Manninen]

Thanks. I will experiment with it.

Regards
Juha
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[fpc-pascal] AnsiStrupper Error

[Daniel Gaspary]

The code bellow is throwing an exception and I don't know why. It used to work.

program Project1;
uses
sysutils;
var
s : AnsiString;
begin
 s := 'a';
 AnsiStrupper(PAnsiChar(s));
end.

It works fine with FPC 2.6.4 (Linux x86-64 bits).

I'm using FPC trunk (Revision 27818):

An unhandled exception occurred at $00428E4D:
EAccessViolation: Access violation
  $00428E4D
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Re: [fpc-pascal] AnsiStrupper Error

[Jonas Maebe]

On 26 May 2014, at 01:59, Daniel Gaspary wrote:

> The code bellow is throwing an exception and I don't know why. It used to 
> work.
> 
> program Project1;
> uses
>sysutils;
> var
>s : AnsiString;
> begin
> s := 'a';
> AnsiStrupper(PAnsiChar(s));
> end.
> 
> It works fine with FPC 2.6.4 (Linux x86-64 bits).

No, it corrupts your string constant.

> I'm using FPC trunk (Revision 27818):
> 
> An unhandled exception occurred at $00428E4D:
> EAccessViolation: Access violation
>  $00428E4D

And that corruption is now caught: 
http://wiki.freepascal.org/User_Changes_Trunk#Literal_storage_memory_has_been_made_read-only


Jonas

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