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Frequently Asked Questions

Disabling system menu in code

Question:

How can I disable the forms system menu and the Minimize, Maximize, and Close Buttons in code at Runtime?

Answer:

The following demonstrates disabling the buttons and system menu on

the form's caption bar.



Example:



procedure TForm1.Button1Click(Sender: TObject);

begin

{Disable}

  Form1.BorderIcons := Form1.BorderIcons -

                       [biSystemMenu, biMinimize, biMaximize];

end;



procedure TForm1.Button2Click(Sender: TObject);

begin

{Enable}

  Form1.BorderIcons := Form1.BorderIcons +

                      [biSystemMenu, biMinimize, biMaximize];

end;




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