TCustomVariantType.IsClear
Is the custom value unassigned ?
Declaration
Source position: variants.pp line 199
public
function IsClear(const V: tvardata) : Boolean; Virtual;
Description
IsClear must be overridden to decide whether the custom variant V is equivalent to varClear (unassigned) value. The VarIsClear function calls this method to decide whether a custom variant is unassigned.
The TCustomVariantType implementation of IsClear always returns False.
See also
| Name | Description |
|---|---|
| VarIsClear | Check if a variant is clear |