YouTube Links Converter Script (Multi-GUI Defunct)

#SingleInstance force
#NoEnv
SetWorkingDir %A_ScriptDir%  ; Ensures a consistent starting directory.
#Persistent

global Name
global EditContent
global YT_URL

#^y::
Label_a:
Gui, Submit , NoHide
Gui, Destroy
GoSub, GUI
MsgBox, This message box will show because the variable "vButton" was destroyed along with the Gui.
Return

GUI:
InputBox, YT_URL, YouTube to youtu.be Shortened, Enter a YouTube Long URL Here:
;Gui, Submit , NoHide
global Name := % YT_URL
Name := strReplace(Name,"www.youtube.com","youtu.be")
Name := strReplace(Name,"/watch?v=", "/")
global EditContent = % Name
GoSub, GUI2
Return

GUI2:
;Gui, Hide
Gui, MyGui:Add, Edit, r1 vBox1 w630, %EditContent%
;GuiControl,, Box1, %EditContent%  ; Put the text into the control.
Gui, MyGui:Show, w650 h100, Box1
EditContent := ""
Name := ""
YT_URL := ""
;cnt :=0
ButtonOK:
GuiClose:
GuiEscape:
Gui, Submit  ; Save the input from the user to each control's associated variable.
GuiControl,, Box1  ; Clear the Edit control.
Return

/* Error: The same variable cannot be used for more than one control. Specifically vBox1 w630 line 051: Gui, MyGui:Add, Edit, r1 vBox1 w630, %EditContent% The current thread will exit. Sample links to test it with: https://www.youtube.com/watch?v=FMR8EYpQj6I https://www.youtube.com/watch?v=GzQLTByH1S0 */