06.07.2019, 22:09
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Регистрация: 28.12.2012
Сообщения: 18
Репутация: 10
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Почему при нажатии на кнопки картинка исчезает?:
Код:
unit Unit1;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, ieview, imageenview, imageen,
Vcl.StdCtrls, Vcl.ExtCtrls;
type
TForm1 = class(TForm)
Image1: TImage;
Button1: TButton;
Button2: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure ResizeImage;
private
{ Private declarations }
ImgScale : Double; // default 1.0 - set in OnCreate
ImgSize : TPoint; // Width and Height of original image, set when load image
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
ImgScale := ImgScale * 2;
ResizeImage;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
ImgScale := ImgScale / 2;
ResizeImage;
end;
procedure TForm1.ResizeImage;
begin
Image1.Width := Round(ImgSize.x*ImgScale);
Image1.Height := Round(ImgSize.y*ImgScale);
end;
end.
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