How can I make scrollable popup menu in Delphi

To create a scrollable popup menu in Delphi, you can use the TPopupMenu component and set the AutoPopup property to True. This will cause the menu to appear as a floating window when the user clicks on a control that is associated with the TPopupMenu component.

You can then add menu items to the TPopupMenu component using the Items property. To create a scrollable menu, you can use the TMenuItem component and set the IsLine property to True to add a separator line to the menu. You can then add additional TMenuItem components as children of the separator line to create the scrollable section of the menu.

Here is an example of how to create a scrollable popup menu in Delphi

procedure TForm1.Button1Click(Sender TObject);
var
  PopupMenu: TPopupMenu;
  MenuItem: TMenuItem;
  i: Integer;
begin
  PopupMenu := TPopupMenu.Create(Self);
  try
    PopupMenu.AutoPopup = True;

     //Add a separator line
    MenuItem := TMenuItem.Create(PopupMenu);
    MenuItem.IsLine = True;
    PopupMenu.Items.Add(MenuItem);

     //Add 10 menu items
    for i = 0 to 9 do
    begin
      MenuItem := TMenuItem.Create(PopupMenu);
      MenuItem.Caption = ‘Menu Item ‘ + IntToStr(i+1);
      MenuItem.OnClick = MenuItemClick;
      PopupMenu.Items.Add(MenuItem);
    end;

     //Show the popup menu
    PopupMenu.Popup(Mouse.CursorPos.X, Mouse.CursorPos.Y);
  finally
    PopupMenu.Free;
  end;
end;

procedure TForm1.MenuItemClick(Sender TObject);
begin
  ShowMessage(‘Menu item clicked ‘ + (Sender as TMenuItem).Caption);
end;

procedure TForm1.Button1Click(Sender TObject);

var

PopupMenu: TPopupMenu;

MenuItem: TMenuItem;

i: Integer;

begin

PopupMenu := TPopupMenu.Create(Self);

try

PopupMenu.AutoPopup = True;

//Add a separator line

MenuItem := TMenuItem.Create(PopupMenu);

MenuItem.IsLine = True;

PopupMenu.Items.Add(MenuItem);

//Add 10 menu items

for i = 0 to 9 do

begin

MenuItem := TMenuItem.Create(PopupMenu);

MenuItem.Caption = ‘Menu Item ‘ + IntToStr(i+1);

MenuItem.OnClick = MenuItemClick;

PopupMenu.Items.Add(MenuItem);

end;

//Show the popup menu

PopupMenu.Popup(Mouse.CursorPos.X, Mouse.CursorPos.Y);

finally

PopupMenu.Free;

end;

procedure TForm1.MenuItemClick(Sender TObject);

begin

ShowMessage(‘Menu item clicked ‘ + (Sender as TMenuItem).Caption);

end;

In this example, a button click event handler creates a new TPopupMenu component and adds a separator line and 10 menu items to it. The Popup method is then used to display the menu at the current mouse cursor position. When a menu item is clicked, the MenuItemClick event handler is called and displays a message box with the selected menu item’s caption.

You can customize the appearance and behavior of the popup menu by setting various properties of the TPopupMenu and TMenuItem components. For example, you can use the Images and OnAdvancedDrawItem properties to add icons and custom drawing to the menu items, and use the PopupComponent property to specify the control that the popup menu is associated with.

How can I make scrollable popup menu in Delphi

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