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 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

NULL values in HFSQL
WINDEV, WEBDEV and WINDEV Mobile allow you to manage the NULL value in the items of the HFSQL data files and for all the other types of accesses (Native, OLE DB, ...
Max (Function)
Returns the greatest value passed as parameter.
<ANSI string>.ToNum (Function)
Returns the numeric value of a character string. This feature enables you to perform numeric calculations on strings.
<Source>.BuildKeyValue (Function)
Builds the value of a composite key to implement a filter (HFilter) or to perform a search (HReadSeekFirst, HReadSeekLast, etc.).
HBuildKeyValueANSI (Function)
Whatever the platform used, the data stored in HFSQL data files is in ANSI format.
StringToNum (Function)
Returns the numeric value of a character string. This feature enables you to perform numeric calculations on strings.
HBuildKeyValue (Function)
Builds the value of a composite key to implement a filter (HFilter) or to perform a search (HReadSeekFirst, HReadSeekLast, etc.).
ChronoValue (Function)
Indicates the time elapsed (in milliseconds) since the call to ChronoStart.
LocalStorageGet (Function)
Retrieves a value from the local storage.
Val (Function)
Returns the numeric value of a character string.
Operations in a Select query
The query editor allows you to perform operations on the values of an item...
<Array>.Min (Function)
Returns the lowest value in the array.
Min (Function)
Returns the lowest value.
Data persistence
The data persistence is used to store the value typed by the user...
<Array>.Max (Function)
Returns the greatest value in the array.
Automatic procedures
The programming of timers, threads and delayed procedures is now automatically managed...
AAF: Sort/Search/Filter on the columns of Table controls
Procedure/Function
A procedure is used to associate an identifier with a statement block......
Creating an application that manages the Euro
The method for creating an application supporting the switch to the Euro is as simple as the method...
Aligning elements in a List Box or Combo Box control
There are different methods to align the elements in a List Box or Combo Box control......
Calling a DLL written in Visual Basic
Visual Basic (like many other languages) allows you to create custom DLLs......
The "Scatter" charts
A scatter chart (XY) represents the relationship between two numeric values in two series...
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...
The formatted display control
...This control can be used to display dates, times and currency values while respecting...
Automatic Application Features (AAF) of Spreadsheet controls
The Spreadsheet control includes multiple Automatic Application Features (AAF) in order to simplify...
The Date edit control: Input or display masks
WINDEV, WINDEV Mobile and WEBDEV propose two types of masks......
The Duration control: Input or display masks
WINDEV, WEBDEV and WINDEV Mobile propose two types of masks......
The Time control: Input or display masks
WINDEV, WEBDEV and WINDEV Mobile propose two types of masks......
The Numeric or Currency control: Input or display masks
WINDEV, WINDEV Mobile and WEBDEV propose two types of masks......
Declaring and using a variable
A variable is defined by name and type......
The Text control: Input or display masks
WINDEV, WEBDEV and WINDEV Mobile propose two types of masks......
Opening, closing and saving a query
The query editor allows you to easily handle the queries....
Optimizing the query execution
The query editor allows you to optimize the execution speed of one or more queries......
Selection conditions of a query
The selection conditions of records are applied to the items used in the queries......
Clipboard with history
The clipboard stores the last 10 pieces of content cut or pasted (from any editor)......
Input masks and display masks
WINDEV, WEBDEV and WINDEV Mobile propose two types of masks......
Hosting parameters
The hosting parameters define the default values that will be used to create the new hosting...
Managing the HFSQL contexts in the windows and in the reports
An HFSQL context contains information relative to the data used......
Different types of data (Type of variable)
A variable is defined by name and type......
Providing an image per DPI
On mobile, when displaying images, each device has its own physical size and its own graphic...