ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Creating a delete query
A delete query (corresponding SQL statement...
HSuggestKey (Function)
Returns a list of keys to add to data files to improve query performance.
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries...
HSuggestKeyEnd (Function)
Finishes collecting information on executed queries.
Project comparator
Comparing two windows (two pages, two reports, two classes, ...
Creating a query
Two methods can be used to create a query...
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...
Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
Create an insert query
An insert query (corresponding SQL statement...
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...
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...
Code history
The code history is used to...
Environment of the query editor
Creating a select query
A select query (corresponding SQL statement...
Query creation mode: independent or embedded query
The query editor proposes two methods for creating a query...
HSuggestKeyStart (Function)
Starts collecting information on executed queries.
Describing a query
Once a query is created, all the characteristics of this query can be modified at any time...
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries...
Select query description window
The description window of a select query includes several sections...
Creating a combining query
A combining query (corresponding SQL statement: UNION) ...
Example for creating a select query
This help page explains how to create two select queries...
Modifying the values displayed in the result of a select query
In the result of a select query, you have the ability to only display...
Test of a query
The query editor allows you to run the test of query result...
Select query: Displaying the first/last n records
The editor of Select queries is used to limit the number of records that will be displayed in the result of the query.
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...
Creating an update query
An Update query (SQL UPDATE statement) is used to modify the records in a database file...
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...
zipCurrentFile (Example)
Usage example of the zipCurrentFile function
<DiskFile variable>.Write (Function)
Writes: a character string into an external file. a memory section....
Erase patches
To quickly modify the operating mode of an application, you can use application patches......
NbWorksheet (Property)
The NbWorksheet property is used to get the number of worksheets in a Spreadsheet control.
CtDescribedPassword (Property)
The CtDescribedPassword property allows you to set the password used to open the data file in an OLE DB connection (file defined in the code only).
ColumnWidth (Property)
The ColumnWidth property is used to get and change the width of each column in a multi-column Looper control.
WinAnimationClosing (Function)
Modifies the type and duration of the animation used when closing the application windows.
HFSQL Control Center: Open an analysis
The HFSQL Control Center allows you to fully manage an analysis......
The Java Applet control
A Java Applet control allows you to easily include Java Applets in your WEBDEV sites......
Scheduler control: Customize appointments
In the Scheduler control, the appointment is displayed in a specific area......
<Looper>.InsertLine (Function)
Inserts a row into a Looper control.
FTPMakeDir (Example)
Usage example of the FTPMakeDir function
FTPRenameFile (Example)
Usage example of the FTPRenameFile function
iDocumentCanceled (Example)
Usage example of the iDocumentCanceled function
ContactDelete (Function)
Deletes the current contact: from a Lotus Notes or Outlook address book. from the list of contacts on the phone (Android, iPhone or iPad, Universal Windows)....
EnumControl (Example)
Usage example of the EnumControl function
fExtractPath (Example)
Usage example of the fExtractPath function
MouseXPos (Function)
Returns the horizontal position (X) of the mouse cursor relative to the specified window or control. Used in a mouse or stylus process (click, hover, left or right button down, etc.).
MouseYPos (Function)
Returns the vertical position (Y) of the mouse cursor relative to the specified window or control. Used in a mouse or stylus process (click, hover, left or right button down, etc.).
EmailReadFirst (Function)
Reads the first incoming email according to the protocol used (POP3 or IMAP, MS Exchange, Lotus Notes or Outlook).
<DiskFile variable>.ReadLine (Function)
Reads a line from an external file (ANSI or UNICODE).
FTPRemoveDir (Example)
Usage example of the FTPRemoveDir function
<Image variable>.DrawPolygon (Function)
Draws a polygon in an Image variable.
<Image>.DrawPolygon (Function)
Draws a polygon in an Image control,
SQLModify (Example)
Usage example of the SQLModify function