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Reference for unit 'Variants' (#rtl)

VarIsNull

Check if a variant is null

Declaration

Source position: variants.pp line 76

function VarIsNull(

const V: Variant

):Boolean;

VarIsNull returns True if the type of the variant V is varNull. No dereferencing is done.

VarIsEmpty		Check if the variant is empty
VarType		Return the type of a variant.
VarIsNumeric		Check if the variant is a numerical value
VarIsStr		Check if the variant is a string