Author: Tomas Rutkauskas

I have a PopupMenu, which contains a lot of menu items. Sometimes the user can't 
see all menus on the screen. The same problem occurs with MainMenu. How I can split 
PopupMenu at runtime that it will be all visible on the screen?

Answer:

TMenuItem has a Break property which you can use to split a menu up into columns. 
The following procedure lets you specify the number of items you want in each 
column:


1   procedure FormatMenu(item: TMenuItem; maxrows: integer);
2   var
3     ix: integer;
4     item2: TMenuItem;
5   begin
6     for ix := 1 to item.Count - 1 do {ignore first}
7     begin
8       item2 := item.Items[ix];
9       if ix mod maxrows = 0 then
10        item2.Break := mbBreak
11      else
12        item2.Break := mbNone;
13    end;
14  end;
15  
16  
17  //You call it like:
18  
19  
20  FormatMenu(PopupMenu.Items, 4);



If instead of an absolute number, you want a specific number of columns, say three:


21  count := PopupMenu.Items.Count div 3;
22  if PopupMenu.Items.Count mod 3 > 0 then
23    inc(count);
24  FormatMenu(PopupMenu.Items, count);