ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Programming Looper controls based on a data file (prefix syntax)
These are the main concepts for programming Looper controls based on a data file......
Programming Looper control attributes (prefix syntax)
All the looper attributes can be handled by programming......
HUpdateLink (Function)
Updates on the server all the links of an HFSQL Client/Server data file....
HStatCalculate (Function)
Performs various statistical calculations on the file keys.
SourceFromWindow (Function)
Automatically updates: the values of a data file's items in memory with the values from the controls in the window. the value of the WLanguage variables with the value of the window controls. This function is also available for WEBDEV pages....
DnDGetData (Function)
Retrieves a specific type of data during Drag/Drop....
DnDCacheData (Function)
Indicates the type of data and the data to copy/move during Drag/Drop....
HStatDate (Function)
Returns the date of the last update for the index statistics.
HStatTime (Function)
Returns the time of the last update for the index statistics.
HChangeConnection (Function)
Dynamically changes the connection associated with a data file.
HFilterStartsWith (Function)
Defines and enables a "Start with" filter on a file, view or query.
DocToPDF (Function)
Converts a Word Processing document into a PDF file.
HListKey (Function)
Returns the list of keys found in a file (query or view) recognized by the HFSQL engine.
CoordinateScreenToEditor (Function)
Converts a size or a position specified in the native dpi of the screen on the device where the application is run to the reference dpi in the editor (160 dpi).
HFilterIncludedBetween (Function)
Defines and enables an "Included between" filter on a file, view or query.
HLogRecreate (Function)
Used to re-create an empty log.
HLogRestart (Function)
Restarts the logging process on a file.
HLogStop (Function)
Stops the log process of a file.
HChangeLogDir (Function)
Modifies the location of log files corresponding to an HFSQL data file.
DnDEvent (Function)
Indicates the procedure to run during an event of Drag/Drop....
HPrevious (Function)
Positions on the previous file record according to a browse item.
VideoRequestPermission (Function)
Requests permission to use the device's camera....
DnDIsDataAvailable (Function)
Checks whether a specific type of data is available during Drag/Drop....
Programming the browsing Looper controls
These are the main concepts for programming Looper controls based on a data file......
TimeSys (Function)
Returns or modifies the system time (current time defined for the current computer).