Title: Minimize non-main forms
Use this text in project file. This example shows how to minimize non-main form in the running application.
program Project1;
uses
Forms,
Windows,
Messages,
SysUtils,
Classes,
Graphics,
Controls,
Dialogs,
Unit1 in 'Unit1.pas' {Form1},
Unit2 in 'Unit2.pas' {Form2};
{$R *.RES}
begin
Application.Initialize;
Application.CreateForm(TForm1, Form1);
Application.CreateForm(TForm2, Form2);
Form2.Show;
SendMessage(Form2.Handle,WM_SYSCOMMAND,SC_MINIMIZE,0);
Application.Run;
end.