ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

EmptyIfZero (Property)
The EmptyIfZero property is used to: Find out the management mode of zero value in a control. Modify the management mode of zero value in a control...
Creating a combining query
A combining query (corresponding SQL statement: UNION) ......
MCU: Implementing and managing user macro codes
No matter how dexterous a development team may be, the end user of an application will always want to perform an action that is not intended......
ThreadMode (Function)
Changes the management mode of threads.
SysStandby (Function)
Allows you to: enable and disable the standby mode (Android) display the system screen used to configure the standby mode (Universal Windows Apps)...
Responsive Web Design: Managing slices
In the WEBDEV editor, different resolutions are represented via slices......
The triggers
A trigger is a WLanguage procedure automatically called by the HFSQL engine whenever a modification is performed (addition, deletion, modification, ......
Automatic data file modification
The automatic data file modification updates the description of data files on user computers......
Context menu of TreeView controls (AAF)
Each TreeView control in a window offers the user a context menu by default......
Transactions in HFSQL Client/Server mode
To keep maximum compatibility between HFSQL Classic applications (single-user or multi-user) and HFSQL Client/Server applications, the transaction mechanism in HFSQL Client/Server mode is similar to the one in HFSQL Classic mode......
Testing a dynamic project (session or AWP mode) from WEBDEV
The test of the entire project allows simulating the startup of the site......
5. Which type of server to choose?
Creating your own User Macro-Codes
The User Macro-Codes are sections of WLanguage code allowing the end user to customize his application......
Using Unicode in HFSQL tables
The database schema proposes two types of Unicode items......
Clipping the window according to an image
An image can be used to easily define the shape of a window......
Information about a control found in a window or in a page
The window editor and the page editor allow you to get information about the controls used....