Recreating a dynamically created form

[artem_niko]

Good afternoon!
I solve this problem: I need to create a form dynamically and load my frame on it, and if the form already exists, then close it (destroy it), along with all the contents, and create it again with a frame. Simply put, recreate an already existing and previously created dynamically form. Everything should be done with one button.

Here is the form creation code that creates the form dynamically initially:

TestForm:=TUniForm.Create(UniApplication);
TestForm.Height:=500;
TestForm.Width:=500;
TestForm.Parent:=MainForm;
TestForm.Name:='test';
TestForm.BorderIcons:=[biSystemMenu,biMaximize];
TestForm.BorderStyle:=bsSizeable;
TestForm.Caption:='test';
TestForm.Show;

Before the form creation code, I tried to add such a code to search for and delete a previously created form:

for i:=Screen.FormCount-1 downto 0 do
begin
  if Screen.Forms[i].Name = 'test' then
     Screen.Forms[i].Free;
end;

The first time the form is created:

 

Without closing this form, I try to recreate it, but I get an error:

 

I ask for help in solving my problem

Initially, I thought that maybe you can create an empty form in the usual way and use it already for my frames, because I need to upload different frames to separate instances of the form, but it seems to me that this will not work...

[artem_niko]

8 hours ago, artem_niko said:

Good afternoon!
I solve this problem: I need to create a form dynamically and load my frame on it, and if the form already exists, then close it (destroy it), along with all the contents, and create it again with a frame. Simply put, recreate an already existing and previously created dynamically form. Everything should be done with one button.

Here is the form creation code that creates the form dynamically initially:

TestForm:=TUniForm.Create(UniApplication);
TestForm.Height:=500;
TestForm.Width:=500;
TestForm.Parent:=MainForm;
TestForm.Name:='test';
TestForm.BorderIcons:=[biSystemMenu,biMaximize];
TestForm.BorderStyle:=bsSizeable;
TestForm.Caption:='test';
TestForm.Show;

Before the form creation code, I tried to add such a code to search for and delete a previously created form:

for i:=Screen.FormCount-1 downto 0 do
begin
  if Screen.Forms[i].Name = 'test' then
     Screen.Forms[i].Free;
end;

The first time the form is created:

 

Without closing this form, I try to recreate it, but I get an error:

 

I ask for help in solving my problem

Initially, I thought that maybe you can create an empty form in the usual way and use it already for my frames, because I need to upload different frames to separate instances of the form, but it seems to me that this will not work...

In general, I figured out my question myself and it's not relevant.
But, I have another question.

Is it possible to make the created form on top of windows, for example, so that I can move it around the screen outside of the main application?
For example, let's say I have 2 monitors on one computer. I want to run the project on one monitor, and move the created form to the second monitor.

Is it possible to do this?