unit2.pas

delphi 环境下

unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    Timer1: TTimer;
    SpeedButton1: TSpeedButton;
    XPManifest1: TXPManifest;
    Edit1: TEdit;
    procedure Timer1Timer(Sender: TObject);
    procedure FormPaint(Sender: TObject);
    procedure CreateParams(var Params: TCreateParams); override;
    procedure FormResize(Sender: TObject);
    procedure SpeedButton1Click(Sender: TObject);
    procedure FormMouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
  private
    { Private declarations }
    ShowBeginTime: TDateTime;
  public
    { Public declarations }
    Step: Integer;
  end;

var
  Form2: TForm2;

implementation

uses Unit1;

{$R *.dfm}
procedure TForm2.CreateParams(var Params: TCreateParams);
begin
  inherited;
  with Params do begin
    EXStyle := EXStyle or WS_EX_TOPMOST or WS_EX_NOACTIVATE;
    wndParent := Form1.Handle;
  end;
end;

procedure TForm2.Timer1Timer(Sender: TObject);
begin
  {Form2.AlphaBlend:=True;
  Form2.AlphaBlendValue:=Form2.AlphaBlendValue-5;
  Form1.ListBox1.Items.Append(inttostr(Form2.AlphaBlendValue));
  if Form2.AlphaBlendValue=0 then begin Timer1.Enabled:=False;end;  }

  case Step of

    1: begin
        Self.Top := Self.Top - 1; Self.Height := Self.Height + 1;
        Self.Left := Screen.WorkAreaWidth - Self.Width - 1;
        if Self.Top <= Screen.WorkAreaHeight - 180 then begin
          Canvas.MoveTo(Self.Width - 1, Self.Height - 1);
          Canvas.LineTo(0, Self.Height - 1);
          ShowBeginTime:=Now;
          Step := 2;
        end;
      end;
    2: begin
        Canvas.MoveTo(Self.Width - 1, Self.Height - 1); //添加最下行
        Canvas.LineTo(0, Self.Height - 1); //添加最下行
        if StrToInt(FormatDateTime('s', Now - ShowBeginTime)) >= 16 then begin
          Self.AlphaBlendValue := 255; Step := 3; end;
      end;
    3: begin
        Canvas.MoveTo(Self.Width - 1, Self.Height - 1); //添加最下行
        Canvas.LineTo(0, Self.Height - 1); //添加最下行
        Self.AlphaBlend := true;
        Self.AlphaBlendValue := Self.AlphaBlendValue - 5;
        if Self.AlphaBlendValue = 0 then begin
          Timer1.Enabled := false;  end;
      end;

  end;



  //Timer1.Enabled := false;






















end;
procedure TForm2.FormPaint(Sender: TObject);
begin
  Canvas.MoveTo(0, Self.Height - 1);
  Canvas.LineTo(0, 0); //绘制左边线
  Canvas.LineTo(Self.Width - 1, 0); //绘制上边线
  Canvas.LineTo(Self.Width - 1, Self.Height); //绘制右边线
end;

procedure TForm2.FormResize(Sender: TObject);
begin
  Form2.Repaint;
end;

procedure TForm2.SpeedButton1Click(Sender: TObject);
begin
  Form2.Close;
end;

procedure TForm2.FormMouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  if Timer1.Enabled = false then begin
    ReleaseCapture; //无标题窗体移动
    SendMessage(Self.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0); end; //无标题窗体移动
end;

end.