TImage 显示 资源中 的图片、TResourceStream、资源文件

unit Unit5;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.ExtCtrls, Vcl.StdCtrls, Vcl.Imaging.pngimage, Vcl.Imaging.jpeg,
  Vcl.ComCtrls, Vcl.Imaging.GIFImg;

type
  TForm5 = class(TForm)
    Button1: TButton;
    Image1: TImage;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form5: TForm5;

implementation

{$R *.dfm}

procedure TForm5.Button1Click(Sender: TObject);
begin
  Image1.Picture.Bitmap.LoadFromResourceName(HInstance, 'Bitmap_1');
end;

procedure TForm5.Button2Click(Sender: TObject);
var
  png: TPngImage;
  stream: TResourceStream;
begin
  png := TPngImage.Create;
  stream := TResourceStream.Create(HInstance, 'PngImage_1', RT_RCDATA);
  try
    png.LoadFromStream(stream);
    Image1.Picture.Assign(png);
  finally
    png.Free;
    stream.Free;
  end;
end;

procedure TForm5.Button3Click(Sender: TObject);
var
  jpg: TJPEGImage;
  stream: TResourceStream;
begin
  jpg := TJPEGImage.Create;
  stream := TResourceStream.Create(HInstance, 'JpgImage_1', RT_RCDATA);
  try
    jpg.LoadFromStream(stream);
    Image1.Picture.Assign(jpg);
  finally
    jpg.Free;
    stream.Free;
  end;
end;

procedure TForm5.Button4Click(Sender: TObject);
var
  gif: TGIFImage;
  stream: TResourceStream;
begin
  gif := TGIFImage.Create;
  stream := TResourceStream.Create(HInstance, 'GifImage_1', RT_RCDATA);
  try
    gif.LoadFromStream(stream);
    gif.AnimationSpeed := ; //动画速度
    gif.Animate := True;//是否动画
    Image1.Picture.Assign(gif);
  finally
    gif.Free;
    stream.Free;
  end;
end;

procedure TForm5.Button5Click(Sender: TObject);
begin
  Image1.Stretch := True; //这句对icon无效.
  Image1.Picture.Icon.LoadFromResourceName(HInstance, 'Icon_1');
end;

procedure TForm5.FormCreate(Sender: TObject);
begin
  Image1.Stretch := True;
  ReportMemoryLeaksOnShutdown := True;
end;

end.

切记：资源管理器 与 项目是连接的，当向资源管理器中增加图片的时候，这个图片会同时加到项目的中来（相当于project---add）；任何一方去除则两方同时自动去除！！！！所以要慎重操作一旦，去除了一方 另一方也会自动去除，那么如果之前有重命名的话 需要寻找之前的资源命名 然后重命名；工作量巨大，所以不要随便删 任何一方。