ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Constants for external files
List of constants used by the functions for managing external files....
HFSQL server configuration
The HFSQL Control Center allows you to fully manage HFSQL servers......
UploadCopyFile (Function)
Saves on the server a file "uploaded" by the Web user. This upload may have been performed: via an "Upload" edit control. via a single-file or multi-file Upload control....
<Table>.Delete (Function)
Deletes a row from: a Table control, a TreeView Table control, a table displayed in a Combo Box control....
<Table>.Select (Function)
Returns the index of the selected element in the Table or TreeView Table control.
Mathematical SQL functions
The mathematical SQL functions that can be used on the queries written in SQL code are as follows......
SQLTransaction (Example)
Usage example of the SQLTransaction function
fRead (Example)
Usage example of the fRead function
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
INIRead (Function)
Reads the content of an INI file (or the content of a file structured like .INI files).
HRestorePosition (Function)
Restores the context of a previously saved file (HSavePosition): current record, filter, pointers.
Scanner (Type of variable)
The Scanner type is used to handle the information from a scanner.
HDuplicateRecord (Function)
Duplicates the record read in a data file: the record found in memory is added into the data file (query or view).
HModify (Function)
Modifies the specified record or the record found in memory in the data file (query or view).
ImageInfoModify (Function)
Modifies the value of an Exif tag for the image used.
HTransactionStart (Function)
Starts a transaction on the data files (HFSQL or accessed via a Native Connector) and creates the transaction file.
Image control in a window
This help page presents the characteristics of an Image control found in a window...
EXE constants
List of constants used by the functions for managing executables....
HWrite (Function)
Writes a record into a data file without updating the indexes corresponding to all keys used in the file.
HDeclareExternal (Function)
Temporarily imports into the current analysis the description of a data file from an existing HFSQL data file.
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler......
HCreationIfNotFound (Example)
Usage example of the HCreationIfNotFound function
Modbus constants
Constants used by the Modbus management functions....
HFilterIncludedBetween (Function)
Defines and enables an "Included between" filter on a file, view or query.
HTTPRequest (Function)
Starts an HTTP request on a server.