Reference for unit 'Variants': Procedures and functions

assign(TNullPtr):Variant

DynArrayFromVariant

Convert a variant to a dynamic arrayt.

DynArrayToVariant

Convert a Dynamic Array To a Variant.

FindCustomVariantType

Find a custom variant class on vartype.

FindVarData

Return a pointer to variant data.

GetPropValue

Return a property value as a variant.

GetVariantProp

Get variant valued property.

HandleConversionException

Convert an exception to a variant exception.

Null

Return a null variant.

SetClearVarToEmptyParam

Create an error variant with value VAR_PARAMNOTFOUND.

SetPropValue

Set a property value as a variant.

SetVariantProp

Set variant valued property.

Unassigned

Return an unassigned variant.

VarArrayAsPSafeArray

Return internal array of variant value.

VarArrayCreate

Create a variant array.

VarArrayCreateError

Raise an EVariantArrayCreateError error.

VarArrayDimCount

Return the number of dimensions of the array.

VarArrayHighBound

Return lower bound of an array.

VarArrayLock

get a pointer to data of a variant array.

VarArrayLockedError

Raise an EVariantArrayLockedError error.

VarArrayLowBound

Return lower bound of an array.

VarArrayOf

Create a variants array of a series of values.

VarArrayRef

Get a reference to a variant array.

VarArrayUnlock

Release data captured by VarArrayLock.

VarAsError

Create an error-typed variant.

VarAsType

Attempt to cast a variant to another type.

VarBadIndexError

Raise an EVariantBadIndexError error.

VarBadTypeError

Raise an EVariantBadVarTypeError error.

VarCastError

Raise a variant type cast error EVariantTypeCastError.

VarCastErrorOle

Raise a variant type cast error EVariantTypeCastError.

VarCheckEmpty

Raise exception if a variant is empty.

VarClear

Clear the variant value.

VarCompareValue

Compare 2 variant values.

VarCopyNoInd

Not supported.

VarEnsureRange

Make sure the variant is within a specified range.

VarFromDateTime

Create variant from TDateTime value.

VarInRange

Check if a variant is in a range of values.

VarInvalidArgError

Raise an EVariantInvalidArgError error.

VarInvalidNullOp

Raise an EVariantInvalidOpError error.

VarInvalidOp

Raise a EVariantInvalidOpError error.

VarIsArray

Check whether a variant is an array.

VarIsBool

Check if the variant is a boolean.

VarIsByRef

Check if the variant is a reference to a value.

VarIsClear

Check if a variant is clear.

VarIsCustom

Check if the variant is a custom value.

VarIsEmpty

Check if the variant is empty.

VarIsEmptyParam

Check if the variant is an error value for VAR_PARAMNOTFOUND.

VarIsError

Check if the variant has type varError.

VarIsFloat

Check if the variant is a floating-point value.

VarIsNull

Check if a variant is null.

VarIsNumeric

Check if the variant is a numerical value.

VarIsOrdinal

Check if the variant is an ordinal value.

VarIsStr

Check if the variant is a string.

VarIsType

Check if a variant is of certain type.

VarNotImplError

Raise an EVariantNotImplError error.

VarOutOfMemoryError

Raise an EVariantOutOfMemoryError error.

VarOverflowError

Raise an EVariantOverflowError error.

VarRangeCheckError

Raise an EVariantOverflowError error.

VarResultCheck

Check the result of an operation and raise exception if not OK.

VarSameValue

Check if 2 variants are the same.

VarSupports

Check if a variant supports an interface.

VarToDateTime

Convert a variant to datetime value.

VarToStr

Convert a variant to string value.

VarToStrDef

Convert a variant to string value, specifying a default.

VarToUnicodeStr

Convert a variant to string value.

VarToUnicodeStrDef

Convert a variant to string value, specifying a default.

VarToWideStr

Convert a variant to string value.

VarToWideStrDef

Convert a variant to string value, specifying a default.

VarType

Return the type of a variant.

VarTypeAsText

Return a textual description of the variant type.

VarTypeDeRef

Returns the resolved type of a variant.

VarTypeIsValidArrayType

Check if a variant type can be used in an array.

VarTypeIsValidElementType

Check if a variant type can be used in an array.

VarUnexpectedError

Raise an EVariantUnexpectedError error.