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 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Declaring and using a variable
A variable is defined by name and type...
Service variable
The Service variable is used to...
Report based on a variable (Data binding)
A report based on a variable is used to directly print the information found in a WLanguage variable...
Composite variable
A composite variable contains different types of elements (members)...
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
Advanced types
The advanced types of WLanguage are as follows
Checkers available in the code editor
The code editor proposes several tools used to correct the code...
WLanguage types
The different types in WLanguage are...
IsNumeric (Function)
Enables you to find out whether a variable or a control is:
  • a numeric (integer, real, currency or numeric).
  • a string that can be converted into numeric.
Assignment operators
Three assignment operators are available...
Constant
The constants are language elements whose value is fixed once and for all...
<Source>.Reset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
HReset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
MemcachedDecrementKeyGroup (Function)
Decrements the value associated with a key on a group of servers.
MemcachedCASKeyGroup (Function)
Modifies the value of a key on a group of servers if this one was not modified.
MemcachedAddPrefixKeyGroup (Function)
Adds a value at the start of existing value in the cache for the given key on a group of servers.
MemcachedIncrementKeyGroup (Function)
Increments the value associated with a key on a group of servers.
<Image>.Resize (Function)
Resizes an image in an Image control.
<Image>.AlphaBlend (Function)
Blends two images together. This allows you to create fade-in effects between 2 images.
<Image>.InvertColor (Function)
Inverts the colors in an Image control.
FileToURI (Function)
Saves the contents of a file to a resource identified by its URI.
ModbusReadFloat (Function)
Reads one or more single-precision floats from a Modbus slave, starting at a specific address.
HTML Editor control functions (prefix syntax)
List of functions for managing HTML Editor controls (prefix syntax)...
Toast management functions
Connection (Property)
The Connection property gets and sets the connection associated with a data file.
fRead (Function)
Reads: a block of bytes (characters) in an external file (ANSI or Unicode), the content...
PersistedCalculatedItem (Property)
The PersistedCalculatedItem property is used to: Find out whether the value of a calculated...
<redisConnection>.Unsubscribe (Function)
Cancels a subscription to a Redis broadcast channel.
OrgModify (Function)
Modifies an element in an Organization Chart control.
BeaconDetectBackground (Function)
Notifies the application when the device enters or leaves the transmission range of a set...
TimestampUTC (Property)
The TimestampUTC property is used to: Find out whether a timestamp item will use UTC time...
<redisConnection>.Publish (Function)
Publishes a message on a Redis broadcast channel.
ThreadExecute (Function)
Starts the execution of a secondary thread.
MemcachedAddPrefix (Function)
Adds a value at the start of existing value in the cache for the given key.
Certificate functions
The following functions are used to handle the certificates:...
Materialized view
...A materialized view is a physical data source defined by an SQL query....