ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

MatDeterminant (Function)
Calculates the determinant of a square matrix (the number of rows is equal to the number of columns).
ModbusWriteFloat (Function)
Writes one or more single-precision floats to a Modbus slave, starting at a specific address.
ModbusWriteRegister (Function)
Writes one or more registers (16-bit values) to a Modbus slave, starting at a specific address.
HFilterStartsWith (Function)
Defines and enables a "Start with" filter on a file, view or query.
HTransaction (Function)
Starts a transaction on the data files (HFSQL or accessed via a Native Connector) and creates the transaction file.
HashCheckString (Function)
Checks the Hash of a character string for a specific type of algorithm.
BrightnessModify (Function)
Modifies the setting of the brightness for the device screen.
DeleteAll (Function)
Deletes all elements: from a one-dimensional or two-dimensional WLanguage array. from an associative array. from an advanced array property (array of gglCalendar events, etc.). from a WLanguage queue. from a WLanguage stack. from a WLanguage list....
iParameterPDF (Example)
Usage example of the iParameterPDF function
SortType (Property)
The SortType property is used to: Find out the sort direction defined for an item or for a component of a composite key. This item was defined in the data model editor or programmatically. Define the sort direction for an item or for a component of a composite key (when describing the item through programming)....
FileToMemory (Function)
Automatically initializes the values of the members of a structure or class with the values of the items of the current record.
MatRead (Function)
Reads the value of a matrix element.
The "Line" charts
In the line charts, the data is interpreted as successive y coordinates of points......
Page (Property)
The Page property is used to handle a page.
ArrayInfo (Function)
Returns the characteristics of an array: type of elements, number of dimensions, dimensions, etc.
HNbRec (Function)
Returns the number of records in an HFSQL file, query or view: active records, deleted records, etc.
Conversion (Function)
Converts a value from a unit to another one.
fUnlock (Function)
Entirely or partially unlocks an external file.
InServiceMode (Function)
Indicates whether the code is run in a service.
HashString (Function)
Calculates the Hash of a character string according to a specific algorithm.
Organizer control functions
The following functions are used to manage the Organizer control:...