[Lazarus] Two simple questions

[Paul Ishenin]

Guadagnini David wrote:

> 1) How define I must use for check (during the compilation) if the 
> compiler is Delphi or Lazarus ?

Lazarus is not a compiler :) You can check if you are using fpc by
{$ifdef fpc}. Delphi does not have similar define but you can check for 
paticular delphi version using:

{$IFDEF VER120}      // Delphi 4.0
   {$DEFINE DELPHI_4UP}
{$ENDIF}

{$IFDEF VER130}      // Delphi 5.0
   {$DEFINE DELPHI_4UP}
   {$DEFINE DELPHI_5UP}
{$ENDIF}

...

> 2) How define I must use for check if the program is for Windows, Linux 
> or MAC ?

windows: {$ifdef Windows} or {$ifdef MSWindows}
linux: {$ifdef linux}
osx: {$ifdef darwin}

> Another think.. I need to manipulate the files attributes (in this 
> particular case the attribute Read-Only). For change this attribute how 
> I can work in Linux or Max (I Know only the Windows method)


FileSetAttr or FileSetAttrUTF8 depends on how your filename string is 
encoded.

Best regards,
Paul Ishenin.