ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Handling an Action Bar through programming
An Action Bar can be handled through programming. To do so, use the variable corresponding to the Action Bar in the code....
Error 531: The negative or null subscripts are not allowed
Multi-project processes: using batches
WINDEV, WEBDEV and WINDEV Mobile allow you to run a set of processes (compilation, generation, ......
Customizing the report viewer: Available windows
Installing the HFSQL Server module
Installing the HFSQL Server module
Modifies or returns the sound volume....
OCR: Convert an image to text
An OCR (Optical Character Recognition) system analyzes an image to extract the text it contains......
ERR_NO_PAGE
CalculatedItemExpression (Property)
The CalculatedItemExpression property is used to: Find out the SQL expression that defines the value of a calculated item. This item was defined in the data model editor or through programming. Define the SQL expression returning the value of a calculated item (when describing the item through programming)....
CalculatedDefaultValue (Property)
The CalculatedDefaultValue property is used to: Find out the SQL expression that defines the default value of an item. This item was defined in the data model editor or through programming. Define the SQL expression that returns the default value of an item (item described through programming only)....
HDBDescribeFile (Function)
Describes a file in dBase3 format (most common format) through programming.
Debugging in Android
All developers appreciate the possibility to debug an application directly on the device......
ERR_NO_TABLE
fOpen (Function)
Opens an external file (ANSI or UNICODE) in order to handle it through programming.
The Spreadsheet control: Available formulas
At run time, in the Spreadsheet control, the end user directly enters the calculation formulas......
dbgAssert (Function)
Used to find out and signal the possible errors via an assertive programming.
<Variable DiskFile>.Open (Function)
Opens an external file (ANSI or UNICODE) in order to handle it through programming.
Appendix 4: WEBDEV modules
The table below presents the modules installed by the WEBDEV application server for Linux and their main features......
Error 111: The Pascal string %1 is too long