ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

HUnlockRecNum (Function)
Unlocks a record locked by: HLockRecNum, a read function used with a locking parameter (HRead associated with the hLockWrite or hLockReadWrite constant for example)....
3-tier architecture
The development in "3-tier" architecture is now simplified......
HFSQL Client/Server: Backing up databases
Like for any database, backups of your HFSQL Client/Server databases must be performed on a regular basis......
The "dynamic" Tab control
The "Dynamic tab" Tab control is used to display several windows in the same window......
HUnlockFile (Function)
Unlocks the records of a data file: locked by HLockFile. individually locked by a locking read function....
WDInst: configuring the interface of setup program
By default, WDInst (the setup editor) proposes a standard setup program (the wallpaper corresponds to a gradient shade of blue and no slide is displayed......
Class inheritance
The hierarchical organization in class and sub-class has allowed to create the notion of inheritance......
WinEdSaveNote (Function)
Exports the repositionable notes created by the user into a file.
NoteCreate (Function)
Creates a Repositionable Note control in the curernt window through programming.
Link functions
Link functions are used to link the interface with the data files (and vice versa). These functions are as follows:...
Sub-query
A sub-query is a query whose result is used by another query......
SQL selection conditions
To specify the selection conditions in an SQL query, you can use......
Project description: SCM tab
The project description window allows you to configure various elements of your project......
Creating a WINDEV project
A project is a logical set of elements and processes whose purpose is to accomplish a given objective......
Image control in a window
This help page presents the characteristics of an Image control found in a window...
ExecuteUpdateUIParent (Function)
Immediately executes the "Request for refreshing the display" event of the parent. This function is kept for backward compatibility.
<Source>.LockFile (Function)
Locks a table and restricts the access to this table for all other sites or applications.
ExecuteUpdateUI (Function)
Immediately executes the "Request for refreshing the display" event of the window, page, internal window, internal page, control template or supercontrol. This function is kept for backward compatibility.
Using the Google Maps service
The Google Maps service is an Internet mapping software proposed by Google......
Camera/Video functions (prefix syntax)