GetListString:
--------------------------------------------------------------------------
Get an element from a list uicontrol. Returns empty if there is no
string or the value of the uicontrol is 0.
--------------------------------------------------------------------------
Form:
s = GetListString( h )
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------
Inputs
------
h (1,1) Handle to the string
-------
Outputs
-------
s (1,:) String
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Children:
Common: General/DeBlankLT