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unit Unit1;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, LCLVersion,
StdCtrls;
type
{ TVersionForm }
TVersionForm = class(TForm)
Button1: TButton;
Memo1: TMemo;
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
public
end;
var
VersionForm: TVersionForm;
implementation
{$R unit1.lfm}
{ TVersionForm }
procedure TVersionForm.FormCreate(Sender: TObject);
begin
Memo1.Clear;
// check if lcl_version is declared,
// then we know if there is support for lcl version information
{$if declared(lcl_version)}
Memo1.Append('Example which uses the lcl version information');
Memo1.Append(format('LCL Version: %s', [lcl_version]));
Memo1.Append(format('LCL Major: %d', [lcl_major]));
Memo1.Append(format('LCL Minor: %d', [lcl_minor]));
Memo1.Append(format('LCL Release: %d', [lcl_release]));
Memo1.Append(format('LCL Full Version: %d', [lcl_fullversion]));
{$else}
Memo1.Append('No lcl version information available');
{$endif}
end;
procedure TVersionForm.Button1Click(Sender: TObject);
begin
Memo1.Clear;
{$if (lcl_major=0) and (lcl_minor=9) and (lcl_release<26)}
Memo1.Append('This program is compiled with lcl version before 0.9.26');
// you cannot use features introduced in 0.9.26
{$else}
Memo1.Append('This program is compiled with lcl version 0.9.26 or later.');
// you can use features available in 0.9.26
{$endif}
{$if (lcl_fullversion) > 93002}
Memo1.Append('This program is compiled with lcl version after 0.9.30.2.');
// you can use features available in 0.9.30.3 and later (e.g. 0.9.31)
{$else}
Memo1.Append('This program is compiled with lcl version 0.9.30.2 or before.');
// you cannot use features introduced after 0.9.30.2
{$endif}
end;
end.
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