Check if the variant is empty.
Source position: variants.pp line 81
function VarIsEmpty(  | 
const V: Variant  | 
):Boolean;  | 
VarIsEmpty checks whether the variant V is empty (i.e. the type is varEmpty).
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Return the type of a variant.  | 
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Attempt to cast a variant to another type.  | 
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Check if a variant is of certain type.  | 
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Check if the variant is empty.  | 
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Raise exception if a variant is empty.  | 
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Check if a variant is null.  |