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Display and Close a window without user interaction

Hi experts,

I want to display some information in a window at the moment when a savefile dialogue appears on the screen. As soon as the savefile dialogue dissapears from the screen- after I typed in the filename-
the window with the displayed information should dissapear AUTOMATICALLY from the screen, too.  Automatically means: No additional user interaction is required, I don't want to click on a "Ok" button" or "close" button or something like that. (The information I want to display is the number of blanks found in a text file)

Have you suggestions how this could be done in Delphi 3.0 ?
(not the counting of blanks in a file, but this stuff with displaying and deleting a window without user interaction...)

With kind regards

Mathes

0
mathes
Asked:
mathes
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1 Solution
 
ZifNabCommented:
Hi mathes,

what about :

form1.Show
call dialog (if dialog.Execute then ...)
form1.Close (or Hide, or ...)

Regards, Zif.
0
 
kretzschmarCommented:
hi mathes,

create a second Form (Your InformationForm), then you can use this code.

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TForm1 = class(TForm)
    SaveDialog1: TSaveDialog;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
    procedure SaveDialog1Show(Sender: TObject);
    procedure SaveDialog1Close(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

uses Unit2;

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
begin
  savedialog1.Execute;
end;

procedure TForm1.SaveDialog1Show(Sender: TObject);
begin
  {Fill Your InformationForm with Information
    Form2.Edit1.text := Someinformation ...}
  form2.show; {Display your InformationForm}
end;

procedure TForm1.SaveDialog1Close(Sender: TObject);
begin
  form2.close; {Close your InformationForm}
end;

end.

meikl

0
 
mathesAuthor Commented:
Hi experts,

I want to display some information in a window at the moment when a savefile dialogue appears on the screen. As soon as the savefile dialogue dissapears from the screen- after I typed in the filename-
the window with the displayed information should dissapear AUTOMATICALLY from the screen, too.  Automatically means: No additional user interaction is required, I don't want to click on a "Ok" button" or "close"button or something like that.

Have you suggestions how this could be done in Delphi 3.0 ?

With kind regards

Mathes

ZifNab
                                                            Date: Wednesday, January 06 1999 - 05:01AM PST

    Hi mathes,

    what about :

    form1.Show
    call dialog (if dialog.Execute then ...)
    form1.Close (or Hide, or ...)

    Regards, Zif.







Question History:


                                            Proposed Answer
      From: ZifNab
                                                         Date: Wednesday, January 06 1999 - 05:01AM PST


                                             Text above...









                                               Comment
      From: kretzschmar
                                                          Date: Wednesday, January 06 1999 - 05:14AM PST

      hi mathes,

      create a second Form (Your InformationForm), then you can use this code.

-------------------------

      unit Unit1;

      interface

      uses
        Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
        StdCtrls;

      type
        TForm1 = class(TForm)
          SaveDialog1: TSaveDialog;
          Button1: TButton;
          procedure Button1Click(Sender: TObject);
          procedure SaveDialog1Show(Sender: TObject);
          procedure SaveDialog1Close(Sender: TObject);
        private
          { Private-Deklarationen }
        public
          { Public-Deklarationen }
        end;

      var
        Form1: TForm1;

      implementation

      uses Unit2;

      {$R *.DFM}

      procedure TForm1.Button1Click(Sender: TObject);
      begin
        savedialog1.Execute;
      end;

      procedure TForm1.SaveDialog1Show(Sender: TObject);
      begin
        {Fill Your InformationForm with Information
          Form2.Edit1.text := Someinformation ...}
        form2.show; {Display your InformationForm}
      end;

      procedure TForm1.SaveDialog1Close(Sender: TObject);
      begin
        form2.close; {Close your InformationForm}
      end;

      end.
 
Hi experts,

thank you for your comment,

Zifnab: I am afraid you suppose that the dialogue and the displayed information are both in the same form.
I can not implement this, because on the form with the dialogue control I don't have any free space to
display something.

kretzschmar: This comes very close to what I am looking for. However when I tried your code, the second form
with the information never shows up in my screen. I want that the dialog and infoscreen both show up together.

Can you please have a look at my source code and tell me, what I am doing wrong here?

With kind regards

Mathes

-------------------
   unit mainform;

      interface

      uses
        Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
        StdCtrls;

      type
        TForm1 = class(TForm)
          SaveDialog1: TSaveDialog;
          Button1: TButton;
          procedure Button1Click(Sender: TObject);
          procedure SaveDialog1Show(Sender: TObject);
          procedure SaveDialog1Close(Sender: TObject);
        private
          { Private-Deklarationen }
        public
          { Public-Deklarationen }
        end;

      var
        Form1: TForm1;

      implementation

      uses Unit2;

      {$R *.DFM}

      procedure TForm1.Button1Click(Sender: TObject);
      begin
        savedialog1.Execute;
      end;

      procedure TForm1.SaveDialog1Show(Sender: TObject);
      begin
        //Fill Your InformationForm with Information
          //Form2.Edit1.text := Someinformation
        form2.show; //Display your InformationForm
      end;

      procedure TForm1.SaveDialog1Close(Sender: TObject);
      begin
        form2.close; {Close your InformationForm}
      end;

      end.

------------------
unit infoscreen;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TForm2 = class(TForm)
    info: TLabel;
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form2: TForm2;

implementation

{$R *.DFM}

end.
------------------
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ZifNabCommented:
mathes? I am afraid you suppose that the dialogue and the displayed information are both in the same form. I can not implement this, because on the form with the dialogue control I don't have any free space to display something. Nope I don't assume this...

unit main

use form2


begin
 form2.Show
 dialog
 form2.Close
end;

neither form2, form1 (main) or dialog are on the same form...

In fact it's the same as what you do in the dialog events.... Except I call show/close not in the events, but before the dialog exists or after the dialog has existed...

zif.
0
 
ZifNabCommented:
here you can see the difference in both methods, both give what you want :

form2 (my method)
form3 (kretzschmar method)

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    OpenDialog1: TOpenDialog;
    procedure Button1Click(Sender: TObject);
    procedure OpenDialog1Show(Sender: TObject);
    procedure OpenDialog1Close(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

uses Unit2, Unit3;

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
begin
 form2.show;
 opendialog1.Execute;
 form2.close;
end;

procedure TForm1.OpenDialog1Show(Sender: TObject);
begin
 form3.Show;
end;

procedure TForm1.OpenDialog1Close(Sender: TObject);
begin
 form3.close;
end;

end.



0
 
ZifNabCommented:
it can be that in your code, the message form is smaller then the dialog form... and that there position is the same... then the dialog will 'hide' your smaller form.
0
 
kretzschmarCommented:
hi mathes,

both solutions have the same effect, and zif could be right that the dialog is over your information form.

set the position of your Information form before show like

 form2.left := 10; {or any other position }
 form2.show;

meikl
0
 
mathesAuthor Commented:
Hi experts,

thank you for your help

with form2.left:=10, everything works very well.

Mathes
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