ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

NullSupported (Property)
The NullSupported property is used to manage the NULL value in HFSQL tables.
SQLReqExists (Function)
Checks the existence of a query.
Nation (Function)
Defines or identifies the display language (captions, messages, ...) used for the windows, pages, reports and controls.
AppointmentDelete (Function)
Deletes: the current appointment from the calendar of a Lotus Notes or Outlook messaging. an appointment from the calendar found on a mobile device (Android/iOS)....
New (Reserved word)
New is used to allocate memory space...
grPieStartAngle (Function)
Indicates the starting angle of the first slice in a Sector, Hemicycle or Donut graph.
Events associated with internal windows
List of events associated with internal windows...
LastDayOfWeek (Function)
Returns the date of the last day of the week corresponding to a given date.
7. Debugger
WINDEV Tutorial - WLanguage basics Lesson 7 - Debugger - 30 min
SQLChangeConnection (Function)
Modifies the current connection.
Internal component
An internal component is a set of elements from a project......
SexagesimalToDecimal (Function)
Returns the decimal angle corresponding to a sexagesimal angle.
Error: Redefinition of syntax
The '<method>' methods of the '<derived class>' class and of the '<base class>' class do not have the same prototype......
ListDeleteAll (Function)
Clears a List Box, ListView or Combo Box control populated programmatically.
ListDelete (Function)
Deletes an element from a List Box, ListView or Combo Box control populated programmatically.
ExeInfo (Function)
Retrieves the specified information about the version of an executable or DLL.
Bitwise operators
The operations on binary values are performed......
RGB (Function)
Defines a color from its Red, Green and Blue components.
Configuring the SOAP administrator
HDeclareExternal (Example)
Usage example of the HDeclareExternal function
Image drawing and processing functions (prefix syntax)
List of image drawing and processing functions (prefix syntax)...
HDescribeItem (Example)
Usage example of the HDescribeItem function
DateValid (Function)
Checks the validity of a date between January 01 0001 and December 31 9999.