In J6, GRIDHWNDC was a string of characters. In J8 it's an integer.
This will break any old code that puts grids in a form.
I suggest applying 0 ".^:(2=3!:0) to any GRIDHWNDC given by the user, so
that old code can port easily.
FWIW, GRIDPID seems always to have been an integer.
If someone in authority responds to this, I will make the change to the
Wiki.
Henry Rich
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