代碼文件:
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;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
var
w,h: Integer;
procedure TForm1.Button1Click(Sender: TObject);
begin
DXPaintBox1.Width := w div 2;
DXPaintBox1.Height := w div 2;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
DXPaintBox1.Width := ClIEntWidth;
DXPaintBox1.Height := ClIEntHeight;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
DXPaintBox1.Width := w;
DXPaintBox1.Height := h;
end;
procedure TForm1.FormCreate(Sender: TObject);
const
ImgPath1 = 'C:\Temp\DX.jpg';
begin
DXPaintBox1.Left := 0;
DXPaintBox1.Top := 0;
DXPaintBox1.DIB.LoadFromFile(ImgPath1); {!}
w := DXPaintBox1.DIB.Width;
h := DXPaintBox1.DIB.Height;
DXPaintBox1.Width := w;
DXPaintBox1.Height := h;
DXPaintBox1.Stretch := True;
end;
end.
