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MainSpF.pas
Package: delphi.rar [view]
Upload User: fh681027
Upload Date: 2022-07-23
Package Size: 1959k
Code Size: 2k
Category:
Delphi VCL
Development Platform:
Delphi
- unit MainSpF;
- interface
- uses
- Qt, SysUtils, Classes, QGraphics, QControls, QForms, QDialogs,
- QMenus, QStdCtrls, QTypes;
- type
- TForm1 = class(TForm)
- ListBox1: TListBox;
- MainMenu1: TMainMenu;
- Help1: TMenuItem;
- About1: TMenuItem;
- File1: TMenuItem;
- Exit1: TMenuItem;
- procedure About1Click(Sender: TObject);
- procedure FormCreate(Sender: TObject);
- procedure Exit1Click(Sender: TObject);
- private
- { Private declarations }
- public
- { Public declarations }
- end;
- var
- Form1: TForm1;
- implementation
- uses AboutF;
- {$R *.xfm}
- procedure TForm1.About1Click(Sender: TObject);
- begin
- if not Assigned (AboutBox) then
- AboutBox := TAboutBox.Create (Application);
- AboutBox.ShowModal;
- end;
- {function local to the unit}
- function IsPrime (N: LongInt): Boolean;
- var
- Test: LongInt;
- begin
- IsPrime := True;
- for Test := 2 to N - 1 do
- begin
- if (N mod Test) = 0 then
- begin
- IsPrime := False;
- break; {jump out of the for loop}
- end;
- end;
- end;
- procedure TForm1.FormCreate(Sender: TObject);
- var
- I: Integer;
- SplashAbout: TAboutBox;
- begin
- // create and show the splash form
- SplashAbout := TAboutBox.Create (Application);
- SplashAbout.MakeSplash;
- // standard code...
- for I := 1 to 30000 do
- if IsPrime (I) then
- ListBox1.Items.Add (IntToStr (I));
- // get rid of the splash form, after a while
- SplashAbout.Timer1.Enabled := True;
- end;
- procedure TForm1.Exit1Click(Sender: TObject);
- begin
- Close;
- end;
- end.