InterfaceUnit - Variant

Data type “Variant” : Can be interpreted as integer, a real or a string. The definition and the available functions are present in the interface-unit “Variant”. This can be opened in the EbsScript-Editor with “File“ “Open interface-unit”.

Name	Purpose	Arguments	Return value	Example
VarAsType	Changes one variant into a variant of another type.	1: VARIANT: original variant 2: VARIANT: variant of requested type	VARENUM	uses @variant; var v,v1:VARIANT; str:string; begin if (VarIsEmpty(v)) then begin println ("v is empty"); end; v.vt:=varReal; v.rval:=77.7; println (v.rval); if (VarType(v)=varReal) then begin println ("v is real"); end; VarAsType(v, v1, varInteger ); println (v1.ival); str:=VarToStr(v); println (str); VarClear(v); println (v.rval); if (VarIsEmpty(v)) then begin println ("v is empty"); end; end.
VarClear	Deletes the value of a variant.	1: VARIANT	-
VarIsEmpty	Checks whether a variant is empty.	1: VARIANT	BOOLEAN: true: Yes false: No
VarToStr	Returns the value of a variant as text (string).	1: VARIANT	string
VarType	Returns the type of a variant.	1: VARIANT	VARENUM
VarFromBoolean	Converts a boolean value to variant	1: BOOLEAN	VARIANT
VarFromDate	Converts a date to variant	1: REAL	VARIANT
VarFromEbsClass	Converts an object of type EbsClass to variant	1:EBSCLASS	VARIANT
VarFromError	Converts a value of type ERRORENUM to variant	1:ERRORENUM	VARIANT
VarFromInteger	Converts an integer value to variant	1:INTEGER	VARIANT
VarFromPointer	Converts a value of type pointer to variant	1:POINTER	VARIANT
VarFromReal	Converts a real value to variant	1:REAL	VARIANT
VarFromString	Converts a string value to variant	1:STRING	VARIANT
VarArrayCreate	Creates a variant array with the bounds given by Bounds and the element type given by vt. The Bounds parameter must contain an even number of values, where each pair of values specifies the upper and lower bounds of one dimension of the array.	1:ARRAY * OF INTEGER: Bounds 2: VARENUM: vt	VARIANT
VarArrayDimCount	Returns the length of the variant array	1:CONST VARIANT:	INTEGER
VarArrayGet		1:CONST VARIANT 2:CONST ARRAY * OF INTEGER	VARIANT
VarArrayHighBound		1:CONST VARIANT; 2:INTEGER	INTEGER
VarArrayLowBound		1:CONST VARIANT; 2:INTEGER	INTEGER
VarArrayPut		1:VARIANT 2:CONST VARIANT 3: ARRAY * OF INTEGER

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