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13.7. Is the Widget Mapped?

To find out if the widget has been mapped to the screen, use the ismapped method: 

if ($widget->ismapped)
  # Do something
} else {
  # map the widget
}

The ismapped method returns 1 if the widget is currently mapped to the screen and 0 if it is not.

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13.6. Widget ExistenceBook Index13.8. Converting Screen Distances


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