VarIsNull
Check if a variant is null
Declaration
Source position: variants.pp line 76
function VarIsNull(const V: Variant) : Boolean;
Description
VarIsNull returns True if the type of the variant V is varNull. No dereferencing is done.
See also
| Name | Description |
|---|---|
| VarIsEmpty | Check if the variant is empty |
| VarIsNumeric | Check if the variant is a numerical value |
| VarIsStr | Check if the variant is a string |
| VarType | Return the type of a variant. |