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ow to display a long text in a TLabel with an end ellipsis 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
23-Nov-03
Category
VCL-General
Language
Delphi 2.x
Views
117
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Publisher:
DSP, Administrator
Reference URL:
DKB
			Author: Tomas Rutkauskas

How to display a long text in a TLabel with an end ellipsis 

Answer:

You must turn off AutoSize for the label, of course. Otherwise the current content 
of the label determines where the string will be trimmed.

1   { ... }
2   var
3     S: string;
4     R: TRect;
5     { ... }
6   begin
7     {Get the text you want into S}
8     S := 'this is way too long to fit into a label - trim it down';
9     {Make it unique, because DrawText is going to change it}
10    UniqueString(S);
11    {Get the rectangle available for drawing}
12    R := Label1.ClientRect;
13    {Make sure you're using the same font the label will use}
14    Label1.Canvas.Font := Label1.Font;
15    {Ask Windows to trim it up with out replacing "&" by an underscore}
16    DrawText(Label1.Canvas.Handle, PChar(S), Length(S), R, DT_END_ELLIPSIS or
17      DT_MODIFYSTRING or DT_NOPREFIX);
18    {Now plug that trimmed text into Label1}
19    Label1.Caption := S;
20    { ... }


			
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