ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

Create an insert query
An insert query (corresponding SQL statement...
Creating a combining query
A combining query (corresponding SQL statement: UNION) ...
Joins between the data files of a select query
When several data files are used in a query, the query editor automatically searches for the links between these files defined in the analysis...
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries...
HSuggestKey (Function)
Returns a list of keys to add to data files to improve query performance.
Query: Displaying the records corresponding to a given period
When a "Date" item is found in the query, you have the ability to only select the records corresponding to a given period...
HSuggestKeyStart (Function)
Starts collecting information on executed queries.
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
Items used in a select query
A query created in the query editor can contain several types of items...
Sort order of records found in a select query
To make the result of a query easier to read, the records can be sorted according to one or more items...
Example for creating a select query
This help page explains how to create two select queries...
Result of a query in test mode
After its execution in test mode (see Running the query test), the result of the query can be...
Carrying over the differences from an element to another one
The project comparator is used to compare two elements and to list the differences found...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a query...
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Project comparator
Comparing two windows (two pages, two reports, two classes, ...
Test of a query
The query editor allows you to run the test of query result...
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
Static control properties
List of properties associated with a Static control...
restRequest (Type of variable)
The restRequest type is used to define the advanced characteristics of a REST request.
Check Box control properties
Several WLanguage properties can be used on the Check Box controls found in a window, in a page or in a report......
DndTarget (Property)
The DndTarget property determines and changes how a control behaves in a drag-and-drop operation.
grParameter (Function)
Retrieves or modifies a chart parameter.
Changing an application to 64-bit
WINDEV allows you to develop 64-bit applications......
The different types of buttons in a window
WINDEV and WINDEV Mobile include 5 types of buttons......
Camera control: decoding bar codes
In iOS and Android, bar codes can be decoded via the Camera control using BCCapture......
TraceBuild (Function)
Displays a customizable message in the trace window opened in parallel with the current window.
Creating a branch
A branch is used to create a copy of the current project in order to perform modifications, additions, etc....
User Groupware
A Windows application, an Internet or Intranet site require to define the role of different contributors......
Handling Bar Code controls programmatically
WINDEV, WEBDEV and WINDEV Mobile allow you to programmatically handle Bar Code controls......
Structure of log files (HFSQL Classic)
The following files are automatically created when logging an HFSQL Classic data file......
Conversion (Function)
Converts a value from a unit to another one.
ServiceWait (Function)
Pauses the current service during the specified duration.
LoadDLL (Function)
Loads the specified library (DLL) in memory.
Control constants
List of constants used by the functions for managing controls...
Composite keys
A composite key is a key item containing several other items......
CSS styles (Cascading Style Sheet)
The CSS styles are the standard styles used on Internet......
Tab order in a window, a page, etc.
The tab order of the controls found in a window or in a page describes the order in which the controls take focus in a window when the user presses the [Tabulation] key......
How to include secure payment in a WEBDEV site?
This help page explains how to add a secure payment into a WEBDEV site......
dSaveImagePNG (Function)
Saves an image: in a PNG file. in memory....
dSaveImageGIF (Function)
Saves an image: in a file in GIF format. in memory....
dSaveImageBMP (Function)
Saves an image: in a file in BMP format. in memory....
eChangeCurrency (Function)
Converts a currency into another currency.