Where is the right place to insert the script to get the title of the current window?

Hello. Where is the right place to insert the script to get the title of the current window?

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Split from Get current screen name.

Try this,

Maybe I'm writing the script in the wrong place, but instead of text, everything is empty. Figure 1 shows the element and where I attached this script, Figure 2 shows the name of the main window, which should be displayed by the script.

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Hi,

"../ScreenHeader" place here the name of the Text box (Miscellaneous - Name)

You can also place the script when loading the page, click on the background of the page and place the script under Events / Loaded: 

Screen.FindItem("Text box name").Text = Screen.Name;  

(the "Text box name" don't need any script)