Delphi 与 DirectX 之 DelphiX(7): 给 TDXImageList 加载图片的最后方案

本例效果图:

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代码文件:

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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;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
const
  ImgPath1 = 'C:\Temp\DelphiX.bmp';
  ImgPath2 = 'C:\Temp\DelphiX.jpg';
var
  PicItem: TPictureCollectionItem;
begin
  DXImageList1.DXDraw := DXDraw1;

  DXImageList1.Items.Add;
  PicItem := DXImageList1.Items[DXImageList1.Items.Count-1];
  PicItem.Picture.LoadFromFile(ImgPath1);

  DXImageList1.Items.Add;
  PicItem := DXImageList1.Items[DXImageList1.Items.Count-1];
  PicItem.Picture.LoadFromFile(ImgPath2);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  with DXImageList1 do begin
    Items[0].Draw(DXDraw.Surface, 0, 0, 0);
    Items[1].Draw(DXDraw.Surface, 0, Items[0].Height, 0);
    DXDraw.Flip;
  end;
end;

end.