ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

<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>.Open (Function)
Opens a table.
Operations in a Select query
The query editor allows you to perform operations on the values of an item......
HSeekLast (Function)
Sets the position on the last file record whose value for a specific item is less than or equal to a sought value.
<Connection variable>.OpenConnection (Function)
Opens a connection to a specific database.
HCreateSubscriberReplica (Function)
Creates the description file of a subscriber replica.
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>.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>.UnlockFile (Function)
Unlocks the records of a table: locked by HLockFile. individually locked by a locking read function....
<Source>.SetDuplicates (Function)
Enables or disables the management of duplicates on a unique key.
HClose (Function)
Closes either a table or all tables opened by the current user: all corresponding physical tables are closed for the current user.
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.
HBackward (Function)
Moves backward several records from the current position in the table, according to a specified item.