ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

NullIfEmpty (Property)
The NullIfEmpty property is used to: Find out whether the value returned by the control is NULL if its content is empty. Configure the value returned by the control if its content is empty....
Impact analysis
The impact analysis immediately identifies the consequences of the latest changes......
Error 1005: To explicitly access a global element of '%1' class, use the syntax
SpellAvailable (Function)
Indicates whether a dictionary is available for the spelling checker (check performed in the controls that use the integrated correction or check performed by WLanguage functions).
2. User-friendly editors in practice
User-friendly editors in practice...
7. Window templates
...Window templates...
dAlphaBlend (Function)
Blends two images together. This allows you to create fade-in effects between 2 images.
<Image variable>.AlphaBlend (Function)
Blends two images together. This allows you to create fade-in effects between 2 images.
<Image>.AlphaBlend (Function)
Blends two images together. This allows you to create fade-in effects between 2 images.
<WDPic variable>.AlphaBlend (Function)
Blends two images together. This allows you to create fade-in effects between 2 images.
<picLayer variable>.AlphaBlend (Function)
Blends two images together. This allows you to create fade-in effects between 2 images.
Accessing an LDAP directory
An LDAP directory is used to share information databases on a local or external network....
5. Deploying a dynamic site (Session or AWP) in practice
Multi-touch in a Chart control
One of the most common applications of the multi-touch feature is used to handle images......
Hash functions
Hashing is used to summarize a file or a character string......
How to choose the data source of a control?
This help page presents the different data sources available for a control....
Range Area chart
The Range Area chart is used to show a variation between a high and a low value......
Error 4: A space is required after the ':' character
Sorts in a report
The sort is used to organize the information displayed in the report......
Additional setup modules
The setup wizard allows you to include additional modules in the setup. The additional modules are used to add additional options to the setup program and to access the advanced setup parameters....
Chart: Managing legends
Several types of legends are supported in the charts......
Docker image of the WEBDEV Application Server
From with version 24, a Docker container with the WEBDEV Application Server can be found in Docker Hub......
The UAC mechanism in Windows Vista (and later)
To increase security against worms and viruses, Windows Vista/7 implemented the UAC (User Account Control) mechanism......
WDInst: grouping the files to install
By default, when generating the setup program, the files to install are compressed in a single archive file ("......
DateTimeValid (Function)
Checks the validity of a date/time between January 01, 0001 at 0 hours 0 minutes 0 seconds 0 hundredths of a second and December 31, 9999 at 23 hours 59 minutes 59 seconds 99 hundredths of a second....