Install  BorderStyle -> bsNone  for Form1, Form2,Form3

Thanks bro

procedure Form1_OnResize (Sender: TObject; Action: string);
begin
  Form1:=frmStart.Panel4.Left;
  Form1.Top:=frmStart.Panel4.Top;
  Form1.Width:=frmStart.Panel4.Width;
  Form1.Height:=frmStart.Panel4.Height;
end;

Now when we open the Form1 button it adjusts to the size of Panel 4

Because when you click expand Form1 or Form2, you can't see the borders at the bottom of the screen. It is possible to make it there so that when you expand or weld frmStart while Form1 or Form2 were fully visible ( which was visible on the right side and the lower basement)

To further understand my idea, I will say that you need to make sure that when you scan the frmStart form to full screen, the other forms also adjust to the size of the frmStart. When I click on expand the main window, Form1 remains partially expanded and as it was before the deployment, while if you click on the Button that calls the form again, the window becomes normal size (full screen) The question is why do I need to click the form call button again to get the desired size?

malitos wrote:

Can I ask you a moment again? If you need to see a photo from the Form1 Form table on the Start form, the script I threw something but it doesn't work

frmStart.GridClients.dbItemID

GridClients

you do not have a table with that name

Thank you for seeing the error. You corrected me the above project, where I added 2 windows is it possible to write a script for adding several windows? and if it is not difficult to tell me why they are all opened differently, I would like that when you click on the button, all forms 1 2 3 are equally exactly in relation to the main form

Can I ask you a moment again? If you need to see a photo from the Form1 Form table on the Start form, the script I threw something but it doesn't work

frmStart.GridClients.dbItemID

you do not have a table with that name

Can it be done somehow via Panel attach Form1 when opening to the panel Please help

upload your project