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How to remove the scrollbar of a TListBox Turn on/off line numbers in source code. Switch to Orginial background IDE or DSP color Comment or reply to this aritlce/tip for discussion. Bookmark this article to my favorite article(s). Print this article
27-Aug-02
Category
VCL-General
Language
Delphi 2.x
Views
70
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Publisher:
DSP, Administrator
Reference URL:
DKB
			Author: Tomas Rutkauskas

I want to remove the scrollbar of a TListBox and control scrolling with a separate 
scrollbar. Anyone has an idea how to remove it?

Answer:

This requires a somewhat dubious hack. Derive a new component from TListBox, like 
this:


1   type
2     TNoVScrolllistbox = class(TListBox)
3     private
4       procedure WMNCCalcSize(var msg: TMessage); message WM_NCCALCSIZE;
5     end;
6   
7   procedure TNoVScrolllistbox.WMNCCalcSize(var msg: TMessage);
8   var
9     style: Integer;
10  begin
11    style := GetWindowLong(handle, GWL_STYLE);
12    if (style and WS_VSCROLL) <> 0 then
13      SetWindowLong(handle, GWL_STYLE, style and not WS_VSCROLL);
14    inherited;
15  end;



This technique works for nearly any control that uses the standard window scrollbars.

			
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