Solved

Form Close

Posted on 2004-04-20
7
170 Views
Last Modified: 2010-04-05
Hello!

Is it possible to determine if a form is close from the Title Bar or if it is
programacally closed?

Hokki
0
Comment
Question by:hakanfa
7 Comments
 
LVL 17

Expert Comment

by:mokule
ID: 10875923
If You mean programatically - by Your aplication.
This would work.

  private
    bCloseType: boolean;


procedure TForm1.FormCreate(Sender: TObject);
begin
  bCloseType := False;
end;

procedure TForm1.FormActivate(Sender: TObject);
begin
  bCloseType := False;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  bCloseType := True;
  Close;
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  if bCloseType then
    Application.MessageBox('Closed programatically','Info',MB_OK);
end;
0
 
LVL 11

Expert Comment

by:shaneholmes
ID: 10877801
hakanfa,

var
  bClose: Boolean = False;


procedure TForm1.Button1Click(Sender: TObject);
begin
 bClose: True;
end;


procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
 if bClose then
  ShowMessage('Closed by button!')
 else
  ShowMessage('Closed by Form!');
end;



If you are trying to prevent a user from closing the form from the Title Bar buttons, then you could do this:


var
  Form1: TForm1;

procedure TForm1.Button1Click(Sender: TObject);
begin
 bClose: True;
end;

procedure TForm1.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
begin
 if bClose then
 begin
  ShowMessage('Closed by button!');
  CanClose:= True;
 end
 else
 begin
  ShowMessage('Closed by Form!')
  CanClose:= False;
 end;
end;


Of course, the other way would be to set the form's BorderIcon's property (biSystemMenu) to false, and set the BorderStyle property to bsSingle.

Hope this helps!

Shane
0
 

Author Comment

by:hakanfa
ID: 10880484
Well actually i figured out by my self...

  private
    { Private declarations }
    procedure WMSysCommand(var Msg: TWMSysCommand); message WM_SYSCOMMAND;
.....

procedure TFrmLogin.WMSysCommand;
begin
  if Msg.CmdType = SC_CLOSE then
  begin
{Your code here}  
  end
  else
  begin
    inherited;
  end;
end;
0
Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

 
LVL 17

Expert Comment

by:mokule
ID: 10880697
How do You call it programatically close or from title bar ? :)

  SendMessage(Form1.Handle,WM_SYSCOMMAND,SC_CLOSE,0);
0
 

Author Comment

by:hakanfa
ID: 10880775
Hello!
What I was looking for was to find out if a form is closed from the "Titlebar", and
the above code figures it out. If the user presses the(x) on the title bar the code
in {your code section} fires. Maybe I was not specific enough in my question.
Sorry for that!

Thanks anyway for You support pals,

Hokki
0
 

Accepted Solution

by:
modulo earned 0 total points
ID: 10911578
Closed, 125 points refunded.
modulo
Community Support Moderator
Experts Exchange
0

Featured Post

Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
PDF library for Delphi 2 120
Delphi: how to send PJL commands to printer 3 97
Comparing dates in Delphi. Greater than/ Less than 3 150
Print Graphic and Text to Epson TM-T88v 12 245
Objective: - This article will help user in how to convert their numeric value become words. How to use 1. You can copy this code in your Unit as function 2. than you can perform your function by type this code The Code   (CODE) The Im…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
Windows 10 is mostly good. However the one thing that annoys me is how many clicks you have to do to dial a VPN connection. You have to go to settings from the start menu, (2 clicks), Network and Internet (1 click), Click VPN (another click) then fi…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…

785 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question