ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

<Source>.FromWindow (Function)
Automatically initializes: 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....
Error 531: The negative or null subscripts are not allowed
<Upload>.CopyFile (Function)
Saves on the server a file "uploaded" by the Web user. This upload may have been performed: via an "Upload" edit control. via a single-file or multi-file Upload control....
<Upload>.FileName (Function)
Returns the name of a file "uploaded" by the Web user. This upload may have been performed: via an "Upload" edit control. via a single-file or multi-file Upload control....
<Window>.ToSource (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....
MenuAddOption (Function)
Adds a new option after the last option of a drop-down or context menu.
Available features and specific features of Java
WINDEV allows you to generate a Java application without even knowing the Java language......
Managing HBase databases
HBase is a non-relational (NoSQL) distributed database, based on columns and using non-structured storage for large tables......
GetUUID (Function)
Calculates a 128-bit Universal Unique Identifier ("UUID").
Managing Responsive Web Design in your Web pages
Websites can be viewed on several platforms......
CalendarSelectMinus (Function)
Deselects a date in a multi-selection Calendar control.
DocInfoXY (Function)
For a given position in a Word Processing control (coordinates of a control point), returns one of the following: the number of the corresponding page, the corresponding X-position (in mm), the corresponding Y-position (in mm)...
8. 10 tips for better interfaces...
<Page>.OpenChild (Function)
Opens a non-modal child window.
<Source>.LogRecreate (Function)
Used to re-create an empty log.
HLogRecreate (Function)
Used to re-create an empty log.
HActivateTrigger (Function)
Re-enables a trigger that was disabled by HDeactivateTrigger.
Installing the HFSQL Server module
Installing the HFSQL Server module
Modifies or returns the sound volume....
Data source (Type of variable)
A Data source variable is used to describe a temporary data source (query, view, alias, ...)