Delphi 与 DirectX 之 DelphiX(23): TDirectDrawSurface.Blur;

本例效果图:

---

代码文件:

---

unit Unit1;



interface



uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, DXDraws, StdCtrls;



type

  TForm1 = class(TForm)

    DXDraw1: TDXDraw;

    Button1: TButton;

    Button2: TButton;

    Button3: TButton;

    procedure Button1Click(Sender: TObject);

    procedure Button2Click(Sender: TObject);

    procedure Button3Click(Sender: TObject);

  end;



var

  Form1: TForm1;



implementation



{$R *.dfm}



const

  ImgPath1 = 'C:\Temp\DelphiX.bmp';



procedure TForm1.Button1Click(Sender: TObject);

begin

  DXDraw1.Surface.Fill(0);

  DXDraw1.Surface.LoadFromFile(ImgPath1);

  DXDraw1.Flip;

end;



procedure TForm1.Button2Click(Sender: TObject);

begin

  DXDraw1.Surface.Fill(0);

  DXDraw1.Surface.LoadFromFile(ImgPath1);

  DXDraw1.Surface.Lock;

  DXDraw1.Surface.Blur;

  DXDraw1.Surface.UnLock;

  DXDraw1.Flip;

end;



procedure TForm1.Button3Click(Sender: TObject);

begin

  with DXDraw1.Surface do begin

    Fill(0);

    LoadFromFile(ImgPath1);

    Lock;

    Blur; Blur;

    UnLock;

  end;

  DXDraw1.Flip;

end;



end.