ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Calling a procedure/a function
Syntax for calling a local or global procedure.
Declaring a procedure/a function
The different syntaxes for declaring a procedure...
Global procedure/function
A global procedure can be used in all the processes or events of the project.
Parameters of a procedure/function
You have the ability to pass parameters to a procedure.
Passing parameters
The parameters can be passed to a procedure...
Parameters of a procedure with a variable number of parameters
When the procedure uses a variable number of parameters, you must be able to handle the different parameters passed to the function in the code of the procedure.
Local procedure
Two types of procedures are available...
Typecasting of parameters
The description of the parameter type is optional...
Prototype overload/Overload
The procedures and the methods of classes can have several syntaxes.
HTransactionRollbackToSavepoint (Function)
Rolls the transaction back to the savepoint.
PDFAddWatermark (Function)
Adds a watermark to all or some pages of an existing PDF file.
PDFAddImage (Function)
Adds an image to a page in an existing PDF file.
HTMLEnableDebugger (Function)
Enables the HTML/JavaScript debugger on CEF-based HTML controls: HTML Display or HTML Editor...
StringToNum (Function)
Returns the numeric value of a character string. This feature enables you to perform numeric...
ScanProperty (Function)
Used to get and change the properties of a scanner.
HClusterMasterNode (Function)
Returns the name of the master node in an HFSQL cluster.
HTransactionSavepoint (Function)
Declares a transaction savepoint.
SysNotificationSend (Function)
Sends an interactive notification to the system in order to be displayed.
SysNotificationRemove (Function)
Removes a previously sent interactive notification.
SysNotificationCompatible (Function)
Checks if the operating system supports interactive notifications.
InSysNotificationMode (Function)
Used to determine if the application is launched from an interactive notification in "Windows 10".
AppleTrackingAuthorizationStatus (Function)
Determines if the app has been allowed to track activity based on user data (iOS only).
AppleRequestTrackingAuthorizationAsynchronous (Function)
Displays the permission request for user activity tracking.
AppleAdvertisingIdentifier (Function)
Returns the device's advertising identifier (iOS only)....
SysNotificationClear (Function)
Removes all interactive notifications previously sent by the current application.
SysNotificationRemoveID (Function)
Removes all previously sent interactive notifications that match the specified identifier (ID).
AIDetect (Function)
Detects different elements in an image: object, faces, etc, ... This detection is achieved...
grStartAngle (Function)
Sets the starting angle of the first section in the following types of chart: Pie,...
HTriggerRecordBefore (Function)
Retrieves the value of the current record before the trigger(s) are executed.
CookieDelete (Function)
Deletes a cookie on the user's computer....
HSuggestKey (Function)
Returns a list of keys to add to data files to improve query performance.
HSuggestKeyStart (Function)
Starts collecting information on executed queries.
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
HTMLOpen (Function)
Creates an htmlDocument variable from an HTML document.