Delphi 与 DirectX 之 DelphiX(69): TDIB.Greyscale();
本例效果图:
代码文件:
unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, DIB, StdCtrls; type TForm1 = class(TForm) DXPaintBox1: TDXPaintBox; Button1: TButton; Button2: TButton; Button3: TButton; Button4: TButton; procedure Button1Click(Sender: TObject); procedure Button2Click(Sender: TObject); procedure Button3Click(Sender: TObject); procedure Button4Click(Sender: TObject); end; var Form1: TForm1; implementation {$R *.dfm} procedure TForm1.Button1Click(Sender: TObject); const ImgPath1 = 'C:\Temp\DX.jpg'; begin DXPaintBox1.DIB.LoadFromFile(ImgPath1); DXPaintBox1.Width := DXPaintBox1.DIB.Width; DXPaintBox1.Height := DXPaintBox1.DIB.Height; DXPaintBox1.Repaint; end; procedure TForm1.Button2Click(Sender: TObject); begin DXPaintBox1.DIB.Greyscale(32); DXPaintBox1.Repaint; end; procedure TForm1.Button3Click(Sender: TObject); begin DXPaintBox1.DIB.Greyscale(4); DXPaintBox1.Repaint; end; procedure TForm1.Button4Click(Sender: TObject); begin DXPaintBox1.DIB.Greyscale(1); DXPaintBox1.Repaint; end; end.
posted on 2009-01-18 21:36 万一 阅读(1220) 评论(0) 编辑 收藏