ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

How to create a query with external join?
In SQL language, an external join is used to exclude or include file records with or without correspondences in the linked files......
fTempDir (Function)
Returns the name of directory used to store the temporary files.
CameraStopDecoding (Function)
Stops decoding bar codes in a Camera control.
USBDetectRemovableStorage (Function)
Detects whether a removable storage unit (CD, USB key, USB camera, ...) was added or removed.
ExeGetPID (Function)
Returns information about the current process.
LooperStartFilling (Function)
Starts the process to populate a Looper control programmatically.
fDetectRemovableStorage (Function)
Detects whether a removable storage unit (CD, USB key, USB camera, ...) was added or removed.
NFCWriteTag (Function)
Starts writing data to an NFC tag.
HListKey (Function)
Returns the list of keys found in a file (query or view) recognized by the HFSQL engine.
User (Property)
The User property is used to manage the user of a connection (HFSQL Client/Server, OLE DB, etc.)....
XMLLast (Function)
Positions on the last element (tag or attribute) of the current tree level.
XMLFirst (Function)
Positions on the first element (tag or attribute) in the current tree level.
VideoStopDecoding (Function)
Stops decoding a bar code in a Camera control.
WLanguage procedure called by fTrackDirectory
WLanguage procedure ("callback") called by fTrackDirectory when a change is made to the tracked directory.
WLanguage procedure called by fTrackFile
WLanguage procedure ("callback") called by fTrackFile when a change is made to the tracked file.
<Page>.Display (Function)
Displays a web page in the user's browser....
Debugging a connection to an HFSQL server
The stored procedures and the triggers are debugged from the environment, with real execution on the server......
GetDefinition (Function)
Retrieves the definition of element type.
Handling a Control Template control through programming
The "Control template" control is used to display an existing control template......
rssCategory (Type of variable)
The rssCategory type is used to handle the category of a RSS stream or stream entry.
rssTextInput (Type of variable)
The rssTextInput type is used to describe the input area of RSS stream...
HModifyStructure (Function)
Used to update the structure of an HFSQL data file by performing an automatic data modification (also called data synchronization).
HSecurity (Function)
Enables or disables the automatic security mechanism on one or more data files.
Provider (Property)
The Provider property is used to manage the type of a connection (HFSQL Client/Server, OLE DB, etc.)....
ActionDo (Function)
Creates and runs a custom action (defined through programming) with support of "Undo/Redo"....