Check if a variant is clear.
Source position: variants.pp line 84
function VarIsClear( |
const V: Variant |
):Boolean; |
VarIsClear returns True if the variant V is empty, or it is a dispatch type with value Nil. For custom types, the decision is left to the custom type.
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Check if the variant is empty. |
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Check if a variant is null. |
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Check if the variant is a numerical value. |
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Check if the variant is a string. |