BUILT-IN MATHEMATICA SYMBOL
Deinitialization
- The typical usage is Deinitialization:>expr.
- Deinitialization is typically done when the cell containing a construct is deleted, or when the notebook containing it is closed.
- Deinitialization will never be performed unless initialization has previously been performed.
- Deinitialization may be delayed if, for example, a construct appears in an invisible location such as the clipboard.
Choose a color and create the colored disk when the window is closed:
Temporarily change the background of a notebook:
Track and display how long a window was viewed:
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