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Run routine after application start. (D7)

Posted on 2011-09-27
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Last Modified: 2012-08-13
I'd like to start some routine after application start running. My application has main form but it is hidden. So, OnShow event can't be used.
Is there a way other than Timer and Application.OnIdle event?
Thanks.
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Question by:3axap
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Mahdi78 earned 250 total points
ID: 36708736
Use DataModule or write you routine in program unit like the following example


program Project1;

uses
  Forms,
  Dialogs, // add Dialogs here to use showmessage procedure
  Unit1 in 'Unit1.pas' {Form1};

{$R *.res}

begin
  Application.Initialize;
  Application.CreateForm(TForm1, Form1);
  showmessage('My routine here');
  Application.Run;
end.

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Assisted Solution

by:epasquier
epasquier earned 250 total points
ID: 36708747
It would help to know what kind of routine you want to run. Is it related to your main form data ? what does it do ? why can't it be called in OnCreate event of your main form ?

why not calling it directly in you project source code ? This is a convenient place as you know for sure that all forms data have been initialized (the ones that are autocreated), but none of the GUI stuff and events occured (all managed in the main loop Application.Run)

begin
  Application.Initialize;
  Application.MainFormOnTaskbar := True;
  Application.CreateForm(TfrmMain, frmMain);
  frmMain.BeforeRun; // Create this method of your main form and call it before Application.Run
  Application.Run;
end.

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Author Comment

by:3axap
ID: 36708851
In OnCreate event of main form I'm starting thread that gives feedback before application finishes initializing.
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Expert Comment

by:epasquier
ID: 36708877
ok, then try to start the threads just before Run
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Author Closing Comment

by:3axap
ID: 36708906
Thank you.
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LVL 9

Expert Comment

by:Mahdi78
ID: 36709069
As correction to my code, you should write your routine before CreateForm procedures


program Project1;

uses
  Forms,
  Dialogs, // add Dialogs here to use showmessage procedure
  Unit1 in 'Unit1.pas' {Form1};

{$R *.res}

begin
  Application.Initialize;
  showmessage('My routine here');
  Application.CreateForm(TForm1, Form1);  // This should be the mainform
  Application.Run;
end.

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Author Comment

by:3axap
ID: 36709140
Mahdi78, thanks for correction but I'd like to start my routine(thread) after main form creation and as late as possible.
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