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

本例效果圖:

　　代碼文件:

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:TempDelphiX.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.