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Figure 4727. window.geometry("width x height +/-x +/-y").

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pop-up input windows at the center of the screen: code:
         

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pop-up input windows one by one: code:
         
Popup windows :         
         
         
         
         
Output:         
         

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pop-up input windows: code:
         
Popup windows :         
         

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Pop-up windows. Code:
         
Output: