ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

TraceStart (Function)
Opens the trace window or saves the trace information in a text file.
TraceEnd (Function)
Closes the trace window if this window was opened or stops saving the trace information in a text file.
TraceDeleteAll (Function)
Clears the content of trace window opened in parallel with the current window.
VideoStartDecoding (Function)
Starts decoding bar codes in a Camera control.
WeekNumber (Function)
Returns the week number within the year that corresponds to the specified date (this date is a character string).
Auto-scrolling text
Sometimes, text in a Static Text or Button control can exceed the width of the control......
TimeValid (Function)
Checks the time validity.
RealToDateTime (Function)
Converts an 8-byte real to a date and time.
EpochToDateTime (Function)
Converts a date and a time in Epoch format (number of time units since 01/01/1970 at 00h00 UTC) to a local datetime....
DateDifference (Function)
Calculates the number of days between two dates.
Age (Function)
Returns the age according to the date of birth.
Handling a TreeView Table control programmatically
This page explains how to program TreeView Table controls......
DatePicker (Function)
Opens the system date picker.
AppInstallVersion (Function)
Installs a specific application version.
KeyGetIdentifier (Function)
Retrieves the identifier that was used to generate an initial key.
KeyCompareKey (Function)
Compares an initial key with an activation key.
KeyGenerateInitialKey (Function)
Generates the initial key (unique license number) for the activation system of the application.
VideoRequestPermission (Function)
Requests permission to use the device's camera....
Hasp functions
The dongles of Hasp family (Hasp3, Hasp4, NetHasp, memoHasp and Hasp HL) are used to protect the applications developed with WINDEV or WEBDEV......
AppInstallUPD (Function)
Triggers the automatic update of current application.
Hour (Property)
The Hour property is used to: Get the time from a variable of type Time or DateTime, or the number of hours from a variable of type Duration. Change the time in a variable of type Time or DateTime, or the number of hours in a variable of type Duration. Retrieve the time or the number of hours from a Date item (in "Date and time" or "Duration" format) or from a Time item. Modify the time or the number of hours in a Date item (in "Date and time" or "Duration" format) or in a Time item....
<Popup>.Display (Function)
Displays a popup in a page with a DDW effect (Dim Disabled Windows).
Multi-touch in a Chart control
One of the most common applications of the multi-touch feature is used to handle images......
4. WEBDEV, WINDEV and WINDEV Mobile: fully compatible format