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Reference for unit 'Variants' (#rtl)

VarIsEmpty

Check if the variant is empty

Declaration

Source position: variants.pp line 74

function VarIsEmpty(

const V: Variant

):Boolean;

VarIsEmpty checks whether the variant V is empty (i.e. the type is varEmpty).

VarType		Return the type of a variant.
VarAsType		Attempt to cast a variant to another type
VarIsType		Check if a variant is of certain type
VarIsEmpty		Check if the variant is empty
VarCheckEmpty		Raise exception if a variant is empty.
VarIsNull		Check if a variant is null