TCustomVariantType Methods

The methods of the TCustomVariantType class are listed here.

	Name	Description
	_AddRef	Increments the reference count for this interface.
	_Release	Decrements the reference count for this interface.
	DispInvoke	Invokes a method call when the Variant supports such operations.
	LeftPromotion	Indicates whether the left argument to a binary operation should be coerced to a different type.
	OlePromotion	Indicates the type to which a Variant value must be cast to make it Automation-compatible.
	QueryInterface	Returns a reference to a specified interface if the object supports that interface.
	RaiseCastError	Generates a system error that indicates an invalid cast.
	RaiseDispError	Generates a system error indicating an invalid dispatch attempt.
	RaiseInvalidOp	Generates a system error indicating an invalid operation.
	RightPromotion	Indicates whether the right argument to a binary operation should be coerced to a different type.
	SimplisticClear	Clears a TVarData record by re-initializing it.
	SimplisticCopy	Performs a simple block copy of one TVarData record to another.
	VarDataCast	Performs a cast from one Variant type to another.
	VarDataCastTo	This is the overview for the VarDataCastTo method overload.
	VarDataCastToOleStr	Performs a cast to a Variant type of varOleStr.
	VarDataClear	Clears the data from a built-in Variant type.
	VarDataCopy	Copies the data from one built-in Variant type to another.
	VarDataCopyNoInd	Copies the data from one built-in Variant type to another.
	VarDataFromOleStr	Creates a TVarData record to represent a Unicode string.
	VarDataFromStr	Creates a TVarData record to represent a string.
	VarDataInit	Initializes a TVarData record.
	VarDataIsArray	Indicates whether a TVarData record represents the data from a Variant array.
	VarDataIsByRef	Indicates whether a TVarData record stores its data indirectly.
	VarDataIsEmptyParam	Indicates whether a TVarData record represents an unassigned optional parameter.
	VarDataIsFloat	Indicates whether a TVarData record represents a floating-point value.
	VarDataIsNumeric	Indicates whether a TVarData record represents a numeric value.
	VarDataIsOrdinal	Indicates whether a TVarData record represents a ordinal value.
	VarDataIsStr	Indicates whether a TVarData record represents a string (normal or Unicode).
	VarDataToStr	Returns a string that represents the value from a TVarData record.

Public Methods

	Name	Description
	BinaryOp	Implements any binary operations of which the custom Variant type is capable.
	Cast	Converts the data from another Variant type so that it represents this custom type's data format.
	CastTo	This is CastTo, a member of class TCustomVariantType.
	CastToOle	This is CastToOle, a member of class TCustomVariantType.
	Clear	Sets the data for this custom Variant type to a blank or unassigned value.
	Compare	Implements comparisons that involve the custom Variant type.
	CompareOp	Implements any comparison operations of which the custom Variant type is capable.
	Copy	Copies the data from a Variant of this custom type.
	IsClear	Indicates whether the data from a custom Variant represents a blank or unassigned value.
	UnaryOp	Implements any unary operations of which the custom Variant type is capable.

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