ONLINE HELP
 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)...
Advanced types
The advanced types of WLanguage are as follows
<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.
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.
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.
Assignment operators
Three assignment operators are available...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
Constant
The constants are language elements whose value is fixed once and for all...
Checkers available in the code editor
The code editor proposes several tools used to correct the code...
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler...
<btleService variable>.GetACharacteristic (Function)
Retrieves the characteristic of a Bluetooth Low Energy service corresponding to the specified...
<btleDevice variable>.GetAService (Function)
Retrieves the service of a Bluetooth Low Energy device corresponding to the specified identifier...
<sfConnection variable>.Add (Function)
Creates a record in a file of a Salesforce database.
<sfConnection variable>.ForwardQuery (Function)
Continues to run a SOQL query (Salesforce Object Query Language) on the records of a Salesforce...
<btleCharacteristic variable>.GetADescriptor (Function)
Retrieves the descriptor of a Bluetooth Low Energy characteristic corresponding to the specified...
<sfConnection variable>.Connect (Function)
Allows you to authenticate yourself beside a Salesforce platform.
<sfConnection variable>.ConvertLead (Function)
Converts the leads.
<sfConnection variable>.Disconnect (Function)
Disconnects: the Salesforce platform. the current Salesforce session....
<sfConnection variable>.ExecuteQuery (Function)
Runs an SOQL query (Salesforce Object Query Language) on a Salesforce database.
<sfConnection variable>.ExecuteProcess (Function)
Requests the execution of a specific process.
<sfConnection variable>.Merge (Function)
Merges the Salesforce records (also called Salesforce objects).
<sfConnection variable>.Read (Function)
Retrieves the Salesforce records from their identifiers.
<sfConnection variable>.EmptyRecycleBin (Function)
Clears the specified records from the Salesforce recycle bin.
<Image variable>.Copy (Function)
Copies an image to another image.
<Image variable>.DominantImageColor (Function)
Returns the dominant color (i.e. most frequent color) of an image found in an Image variable.
<Queue variable>.Dequeue (Function)
Dequeues an element from a queue.
<Stack variable>.Pop (Function)
Pops an element from a stack.
<Image variable>.Crop (Function)
Returns the cropped part of an image. This image is found in an Image variable.
<Image variable>.AlphaBlend (Function)
Blends two images together. This allows you to create fade-in effects between 2 images.
<Image variable>.DrawHalo (Function)
Adds a halo effect on an image found in an Image variable].
<Image variable>.EncrustColor (Function)
Encrusts a color in an image found in an Image variable].
<Image variable>.InvertColor (Function)
Inverts the colors in an Image variable.
<Image variable>.ModifyLightness (Function)
Modifies the lightness of an image in an Image variable.
<Queue variable>.Info (Function)
Retrieves the characteristics of a queue: types of elements and number of elements.
<Stack variable>.Info (Function)
Retrieves the characteristics of a stack: types of elements and number of elements.