Hiding your application from the Windows Taskbar.

Author: Embarcadero USA

Question:

How do I hide my application from the Windows Taskbar?

Answer:

It is possible to have your application running without an icon appearing in the task bar. Here’s how to do this:

• In Delphi go to the menu option Project -> View Source.
• Add the Windows unit to the uses clause.
• Add Application.ShowMainForm := False; to the line after
  “Application.Initialize;”.
• Add: ShowWindow(Application.Handle, SW_HIDE); to the line
  before “Application.Run;”
• If you still want your form to show then Add: ShowWindow(Form1.Handle, SW_SHOWNORMAL); to the line just before “Application.Run;”
  
  Your main project source file should now look something like
  this:

  program Project1;
  
  uses
    Windows,
    Forms,
    Unit1 in 'Unit1.pas' {Form1},
    Unit2 in 'Unit2.pas' {Form2};
  
  {$R *.RES}
  
  begin
    Application.Initialize;
    Application.ShowMainForm := False;
    Application.CreateForm(TForm1, Form1);
    Application.CreateForm(TForm2, Form2);
    ShowWindow(Application.Handle, SW_HIDE);
    ShowWindow(Form1.Handle, SW_SHOWNORMAL); //Only add this if you want your form to show.
    Application.Run;
  end.
  

• In the “initialization” section (at the very bottom)
  of each unit that uses a form, add:

  begin
    ShowWindow(Application.Handle, SW_HIDE);
  end.
  

  Article originally contributed by