Hi Daniel,
Date: Sat, 2 Apr 2011 19:02:46 -0300
From: daniel.franz...@gmail.com
To: lazarus@lists.lazarus.freepascal.org
Subject: [Lazarus] MDI implementation
Hi there.
I'm trying to write a MDI application in Lazarus (Win32/Vista, Lazarus 0.9.31).
I created the main form and set its FormStyle property to fsMDIForm. Then I
created the child form and set its FormsStyle to fsMDIChild.
I also created a menu where I can start a new form. I moved the child form the
non-automatic-created form list. And used the following code to create it:
-----------------
procedure TfrmMain.mnuEntrarDadosClick(Sender: TObject);
var frmChild: TfrmRelatVend;
begin
frmChild := TfrmRelatVend.Create(self);
frmChild.Show;
end;
-----------------
I also wrote a formClose handler for the child so it gets freed when I close it.
-----------------
procedure TfrmRelatVend.FormClose(Sender: TObject;
var CloseAction: TCloseAction);
begin
CloseAction := caFree;
end;
-----------------
>Altough the form gets created and shows up, it does not have a MDI behavior,
>eg, it does not "stay" in the limits of its parent form and it gets maximized
>on top of its parent form.
>What am I doing wrong?
>thank you
I cannot tell you exactly what you're doing wrong, but I can do the next best
thing.
I have a Simple_Ed (simple text editor) which supports unlimited MDI child text
windows working.
You can find it here:
https://sites.google.com/site/pewtas/home/delphi_source_code
and the download for the Delphi 7 source code is here:
simple_ed_005_src.zip 19 KB - The Delphi source code files only
(Note that this has a main form and a child MDI form).
Best Regards,Peter / pew
--
>Daniel
"Let us change our traditional attitude to the construction of programs.
Instead of imagining that our main task is to instruct a computer what to do,
let us concentrate rather on explaining to human beings what we want a computer
to do." (Donald Knuth)
"Yes, technogeeks can be funny, even if only to each other."
(http://www.boogieonline.com/revolution/science/humor/)"
"Man is driven to create; I know I really love to create things. And while I'm
not good at painting, drawing, or music, I can write software." (Yukihiro
Matsumoto, a.k.a. ``Matz'')
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