Delphi与DirectX之DelphiX(16)：DXImageList1.Items.Find()

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;
DXImageList1: TDXImageList;
Button1: TButton;
Button2: TButton;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
{加载图片并命名, 这也可以在设计时做}
procedure TForm1.FormCreate(Sender: TObject);
const
ImgPath1 = 'C:\Temp\DelphiX.bmp';
ImgPath2 = 'C:\Temp\DelphiX.jpg';
begin
DXImageList1.DXDraw := DXDraw1;
DXImageList1.Items.Add;
DXImageList1.Items[DXImageList1.Items.Count-1].Picture.LoadFromFile(ImgPath1);
DXImageList1.Items[DXImageList1.Items.Count-1].Name := 'img1';
DXImageList1.Items.Add;
DXImageList1.Items[DXImageList1.Items.Count-1].Picture.LoadFromFile(ImgPath2);
DXImageList1.Items[DXImageList1.Items.Count-1].Name := 'img2';
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
DXDraw1.Surface.Fill(0);
DXImageList1.Items.Find('img1').Draw(DXDraw1.Surface, 0, 0, 0);
DXDraw1.Flip;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
DXDraw1.Surface.Fill(0);
DXImageList1.Items.Find('img2').Draw(DXDraw1.Surface, 0, 0, 0);
DXDraw1.Flip;
end;
end.