ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

HClose (Function)
Closes either a table or all tables opened by the current user: all corresponding physical tables are closed for the current user.
MultiPolygonGeo (Variable type)
The MultiPolygonGeo type can be used to store a collection of non-overlapping polygons defined with geographic coordinates.
Link functions (prefix syntax)
Link functions are used to link the interface with the data files (and vice versa)....
<Source>.Alias (Function)
Creates a logical alias of a data file (or query) or cancels all existing aliases.
<Source>.UnlockFile (Function)
Unlocks the records of a data file: locked by HLockFile. individually locked by a locking read function....
<Source>.UnlockRecNum (Function)
Unlocks a record locked by: HLockRecNum, a read function used with a locking parameter (HRead associated with the hLockWrite or hLockReadWrite constant for example)....
<Source>.DescribeFile (Function)
Describes a data file programmatically.
<Source>.Close (Function)
Closes a data file or all the data files opened by the current user: all the corresponding physical data files are closed for the current user.
<Source>.SetDuplicates (Function)
Enables or disables the management of duplicates on a unique key.
<Source>.Open (Function)
Opens a data file.
HSetREP (Function)
Enables or disables the management of .REP file.
<Connection variable>.OpenConnection (Function)
Opens a connection to a specific database.
HErrorIntegrity (Function)
Used to check whether an integrity error occurred.
<Polygon2D variable>.IsValid (Function)
Checks whether the specified 2D polygon is valid according to the OGC rules.
Link functions
Link functions are used to link the interface with the tables and vice versa. These functions are as follows:...
<Source>.ReadSeek (Function)
Sets the position on the first record whose value for a specific item is greater than or equal to a sought value (generic search).
HUnlockFile (Function)
Unlocks the records of a table: locked by HLockFile. individually locked by a locking read function....
HUnlockRecNum (Function)
Unlocks a record locked by: HLockRecNum, a read function used with a locking parameter (HRead associated with the hLockWrite or hLockReadWrite constant for example)....
HSetDuplicates (Function)
Enables or disables the management of duplicates on a unique key.
Type (Property)
The Type property is used to get: the type of element (table or item) defined programmatically or in the data model editor, view or query. the type of object. the type of data held in a Variant....
HDescribeFile (Function)
Describes a data file programmatically.
HBackward (Function)
Moves backward several records from the current position in the table, according to a specified item.