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popupmenu的问题

时间:2011-11-05

来源:互联网

做一个数据库软件有很多image控件 在image上点右键弹出popupmenu菜单 菜单里有打开选项 image显示打开的图片
  问题是多个image控件可以用一个popupmenu控件吗 代码要怎么写 谢谢

作者: jige5d   发布时间: 2011-11-05

多个控件可以用1个popupmenu的,将它们的popupmenu属性全指向同一popupmenu就可以了
而响应PopupMenu时,PopupMenu的PopupComponent属性就是你点击的那个控件
下面是delphi6自带的EX,两个Edit同时用一个PopupMenu
Delphi(Pascal) code

procedure TForm1.FormCreate(Sender: TObject);

begin
  PopupMenu1.AutoPopup := True;
  Edit1.PopupMenu := PopupMenu1;
  Edit2.PopupMenu := PopupMenu1;

end;

These are the cut, copy, and paste OnClick events for the commands on the pop-up menu. 

procedure TForm1.Copy1Click(Sender: TObject);

begin
  if PopupMenu1.PopupComponent = Edit1 then
   Edit1.CopyToClipboard
  elseif PopupMenu1.PopupComponent = Edit2 then
    Edit2.CopyToClipboard
  else
    Beep;

end;

procedure TForm1.Cut1Click(Sender: TObject);

begin
  if PopupMenu1.PopupComponent = Edit1 then
    Edit1.CutToClipboard
  elseif PopupMenu1.PopupComponent = Edit2 then
    Edit2.CutToClipboard;
  else
    Beep;

end;

procedure TForm1.Paste1Click(Sender: TObject);

begin
  if PopupMenu1.PopupComponent = Edit1 then
    Edit1.PasteFromClipboard
  else if PopupMenu1.PopupComponent = Edit2 then
    Edit2.PasteFromClipboard;
  else
    Beep;
end;


作者: keiy   发布时间: 2011-11-05

谢谢~~~~~~~~~~~~~~~~~~~~~~~

作者: jige5d   发布时间: 2011-11-05

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