ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

HDeclareExternal (Function)
Temporarily imports into the current analysis the description of a data file from an existing HFSQL data file.
HTransactionEnd (Function)
Validates the current transaction: the modifications performed on the data file since the start of transaction (HTransactionStart) are validated. the transaction file is deleted (if the transaction is the last transaction in progress for a network application) the records locked in read-only by the transaction are unlocked....
Word Processing constants
The following constants are used by the functions for managing the Word Processing control:...
HLockRecNum (Function)
Locks a record and restricts the access to this record for all the other applications.
HListKey (Example)
Usage example of the HListKey function
HListDatabase (Function)
Lists the Client/Server databases associated with a connection....
HFileExist (Example)
Usage example of the HFileExist function
HErrorInfo (Example)
Usage example of the HErrorInfo function
HReadFirst (Function)
Sets the position on the first record according to a browse item.
HNbRec (Example)
Usage example of the HNbRec function
HGetCurrentPosition (Function)
Returns the approximate position of current record in the data file.
HMergeView (Example)
Usage example of the HMergeView function
HChangeName (Example)
Usage example of the HChangeName function
HListItem (Example)
Usage example of the HListItem function
CalculatedItemExpression (Property)
The CalculatedItemExpression property is used to: Find out the SQL expression that defines the value of a calculated item. This item was defined in the data model editor or through programming. Define the SQL expression returning the value of a calculated item (when describing the item through programming)....
HErrorDuplicates (Example)
Usage example of the HErrorDuplicates function
HChangeKey (Example)
Usage example of the HChangeKey function
HOpenConnection (Function)
Opens a connection to a specific database.
HReadLast (Example)
Usage example of the HReadLast function
HOut (Example)
Usage example of the HOut function
HExecuteSQLQuery (Example)
Usage example of the HExecuteSQLQuery function
HModify (Example)
Usage example of the HModify function
HExecuteSQLQueryAsynchronous (Function)
Executes an SQL query asynchronously.
HCancelDeclaration (Example)
Usage example of the HCancelDeclaration function
HReadLast (Function)
Sets the position on the last record of a data file according to a browse item.