figureExists(h)

Function Description
This function returns the status if a given figure handle exists.

AUTHOR: Sugato Ray | Created on: 07-JUL-2017 | ray.sugato[at]gmail.com

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PLEASE ACKNOWLEDGE THE AUTHOR IF YOU USE THIS CODE
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INPUT:
h = figure handle

OUTPUT:
status = 1 when figure handle exists
status = 0 when figure handle DOES NOT exist

EXAMPLE:
status = figureExists(h);
status = figureExists(2); % check if figure 2 exists