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how to center a Form efficiently 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
03-Sep-02
Category
VCL-Forms
Language
Delphi 2.x
Views
49
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Publisher:
DSP, Administrator
Reference URL:
DKB
			Author: Tomas Rutkauskas

Center a Form efficiently

Answer:

To center a form after having changed its dimensions at run-time,
the poScreenCenter won't do it - it only works when the form is shown.

The following code shows 2 solutions how to handle this "problem":

1   
2   // this works, but the form will be redrawn two times
3   // (one redraw for each assignment)
4   Form1.Left := (Screen.Width div 2) - (Form.Width div 2);
5   Form1.Top := (Screen.Height div 2) - (Form.Height div 2);
6   
7   // this is better.. the form is redrawn only once
8   Form1.SetBounds((Screen.Width - AForm.Width) div 2,
9     (Screen.Height - AForm.Height) div 2,
10    ATop, Form1.Width, Form1.Height);


			
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