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...show a horizontal scrollbar in a Listbox?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (6):  
     


procedure HorScrollBar(ListBox: TListBox; MaxWidth: Integer);
var
  
i, w: Integer;
begin
  if 
MaxWidth = 0 then
    
SendMessage(ListBox.Handle, LB_SETHORIZONTALEXTENT, MaxWidth, 0)
  else
  begin
    
{ get largest item }
    
for i := 0 to ListBox.Items.Count - 1 do
      with 
ListBox do
      begin
        
w := Canvas.TextWidth(Items[i]);
        if w > MaxWidth then
          
MaxWidth := w;
      end;
    SendMessage(ListBox.Handle, LB_SETHORIZONTALEXTENT,
      MaxWidth + GetSystemMetrics(SM_CXFRAME), 0);
  end;
end;

 

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