WoW API: IsItemInRange

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Returns 1 if you are in range of the specified unit to use the item specified by item, 0 if not, nil if the target is invalid, etc.

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Arguments

(String item, String unit)

item

The item to use (e.g. "Heavy Silk Bandage")

unit

The unit to query (e.g. "target", "party1", "pet", "player")

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Common Ranges

Bandages: 18 yards

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Returns

If in range to perform the action, 1 (true). Otherwise, 0 (false), or nil (false) if the action is invalid.

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Notes

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Example

if ( IsItemInRange("Heavy Silk Bandage","target") ) then
  -- light up a part of the interface
else
  -- darken
end