Advanced types

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The different types of data (Type of variable)

Advanced types

The advanced types of WLanguage are as follows:


Connection	The Connection type is used to describe by programming one or more connections to external databases (HFSQL Client/Server, Native Access, ...).
Date	The Date type allows you to easily handle the dates. This type is used to manage the conversions almost automatically
DateTime	The DateTime type allows you to easily handle a date and a time. The DateTime type can be used to perform calculations (subtraction, addition, ...) on the dates, times and durations.
Versions 16 and later API description New in version 16 API description API description	An API Description variable is used to describe an API, its parameters, its return value and its calling options by programming.
File description	A File description variable is used to describe one or more data files by programming. The description of each file is validated by HDescribeFile.
FullTextIndex description	A FullTextIndex Description variable is used to describe one or more full-text indexes by programming.
Link description	A Link description variable is used to describe a link between two data files by programming. The description of each link is validated by HDescribeLink.
Procedure description	The Procedure description type is used to get information about a procedure or a method.
Item description	An Item description variable is used to describe by programming one or more items found in a data file. The description of each item is validated by HDescribeItem.
Duration	The Duration type is used to easily handle the intervals of dates and times. The DateTime type can be used to perform calculations (subtraction, addition, ...).
Queue	A queue variable is a structured type that is used to group a set of elements of same type. The elements are added at the end of queue and they are retrieved in enqueue order.
Time	The Time type is used to easily handle the times. This type is used to manage the conversions almost automatically (TimeToString, TimeToInteger, ...)
List	A List variable is a structured type that is used to group a set of elements of the same type. The elements can be added at the end of the list or they can be inserted into the list.
Stack	A Stack variable is a structured type that is used to group a set of elements of the same type. The elements are added at the end of stack and they are retrieved from the most recent one.
Versions 21 and later Point New in version 21 Point Point	A Point variable is a structured type that is used to represent a position (X, Y) in 2 dimensions.
Font	The Font type is used to easily describe a font by programming.
Versions 21 and later Rectangle New in version 21 Rectangle Rectangle	A Rectangle variable is a structured type that is used to represent a rectangle (X, Y, Width, Height) in 2 dimensions.
Data source	A Data source variable is used to describe a data source by programming (query, view, alias, ... ). All the operations that can be performed on a view (or on a query) can be performed on a Data source variable associated with a view (or with a query).
Variant	The Variant type is used to: store any simple value: boolean, numeric (currency, 8-byte real, signed 4-byte integer), characters and character string, date (Date, Time, DateTime and Duration). perform interactions with the ActiveX objects and the Automation programming. handle the NULL value in WLanguage.