unit About_Unit;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, jpeg, ExtCtrls, Buttons;

type
  TfrmAbout = class(TForm)
    Panel1: TPanel;
    Copyright: TLabel;
    OS: TLabel;
    Label2: TLabel;
    PhysMem: TLabel;
    Bevel1: TBevel;
    Shape1: TShape;
    Label1: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Image1: TImage;
    BitBtn1: TBitBtn;
    Label5: TLabel;
    procedure FormCreate(Sender: TObject);
    procedure CopyrightClick(Sender: TObject);
    procedure CopyrightMouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Integer);
    procedure Panel1MouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Integer);
  private
    procedure GetOSInfo;
    procedure InitializeCaptions;
  public
    { Public declarations }
  end;

var
  frmAbout: TfrmAbout;

implementation

uses ShellAPI;

{$R *.dfm}

procedure TfrmAbout.FormCreate(Sender: TObject);
begin
  InitializeCaptions;
end;

procedure TfrmAbout.CopyrightClick(Sender: TObject);
begin
  shellexecute(handle,nil,'http://www.northwain.com.cn',nil,nil,sw_shownormal);
end;

procedure TfrmAbout.CopyrightMouseMove(Sender: TObject; Shift: TShiftState;
  X, Y: Integer);
begin
  Shape1.Visible:=true;  
end;

procedure TfrmAbout.Panel1MouseMove(Sender: TObject; Shift: TShiftState; X,
  Y: Integer);
begin
  Shape1.Visible:=false;
end;

procedure TfrmAbout.GetOSInfo;
var
  Platform: string;
  BuildNumber: Integer;
begin
  case Win32Platform of
    VER_PLATFORM_WIN32_WINDOWS:
      begin
        Platform := 'Windows 98';
        BuildNumber := Win32BuildNumber and $0000FFFF;
      end;
    VER_PLATFORM_WIN32_NT:
      begin
        Platform := 'Windows NT';
        BuildNumber := Win32BuildNumber;
      end;
      else
      begin
        Platform := 'Windows';
        BuildNumber := 0;
      end;
  end;
  if (Win32Platform = VER_PLATFORM_WIN32_WINDOWS) or
    (Win32Platform = VER_PLATFORM_WIN32_NT) then
  begin
    if Win32CSDVersion = '' then
      OS.Caption := Format('%s %d.%d (Build %d)', [Platform, Win32MajorVersion,
        Win32MinorVersion, BuildNumber])
    else
      OS.Caption := Format('%s %d.%d (Build %d: %s)', [Platform, Win32MajorVersion,
        Win32MinorVersion, BuildNumber, Win32CSDVersion]);
  end
  else
    OS.Caption := Format('%s %d.%d', [Platform, Win32MajorVersion,
      Win32MinorVersion])
end;

procedure TfrmAbout.InitializeCaptions;
var
  MS: TMemoryStatus;
begin
  GetOSInfo;
  MS.dwLength := SizeOf(TMemoryStatus);
  GlobalMemoryStatus(MS);
  PhysMem.Caption := FormatFloat('#,###" KB"', MS.dwTotalPhys div 1024);
end;

end.