本例效果圖:

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代碼文件:

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unit Unit1;interfaceusesWindows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,Dialogs, DIB, StdCtrls;typeTForm1 = class(TForm)DXPaintBox1: TDXPaintBox;Button1: TButton;Button2: TButton;procedure Button1Click(Sender: TObject);procedure Button2Click(Sender: TObject);procedure FormCreate(Sender: TObject);procedure FormDestroy(Sender: TObject);end;varForm1: TForm1;implementation{$R *.dfm}vardib: TDIB;procedure TForm1.Button1Click(Sender: TObject); constImgPath1 = 'C:\Temp\DX.jpg'; begindib.LoadFromFile(ImgPath1);DXPaintBox1.DIB.Assign(dib);DXPaintBox1.Width := dib.Width;DXPaintBox1.Height := dib.Height;DXPaintBox1.Repaint; end;procedure TForm1.Button2Click(Sender: TObject); beginDXPaintBox1.DIB.SmoothRotateWrap(dib, dib.Width div 2, dib.Height div 2, 15.5);DXPaintBox1.DIB.Assign(dib);DXPaintBox1.Repaint; end;procedure TForm1.FormCreate(Sender: TObject); begindib := TDIB.Create; end;procedure TForm1.FormDestroy(Sender: TObject); begindib.Free; end;end.

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