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How to control the positioning of MDI child forms 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
30-Aug-02
Category
Others
Language
Delphi 4.x
Views
11
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Publisher:
DSP, Administrator
Reference URL:
DKB
			Author: Tomas Rutkauskas

I have written an inventory app in Delphi 4 using MDI forms. Everything seems to 
work great. The only thing is, that when I open one child form, then close that 
same child form and reopen it, the form descends a quarter of an inch. As I open 
other child forms, they keep descending the same quarter inch (or so). After about 
four open windows, the 5th opens back at the top of the parent form. Is there any 
way to have child windows open at the top of my parent window (especially when all 
other child forms have been closed).

Answer:

Try overriding CreateParams():

1   
2   procedure CreateParams(var Params: TCreateParams); override;
3   
4     procedure TNotebook.CreateParams(var Params: TCreateParams);
5     begin
6       inherited CreateParams(Params); {call the inherited first}
7       with Params do
8       begin
9         X := YourXPos;
10        Y := YourYPos;
11      end;
12    end;


			
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