ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

ERR_NO_APPLICATION
Sticky header (Code editor)
When working in a large code file (larger than the screen), it can sometimes be difficult to determine where you are in the code......
WDInst: Configuring the installation workstation
When creating the setup program, WDInst allows you to configure the computer where the program will be installed......
Linking a Scheduler control to a data file or variable
You can create Scheduler controls directly linked to the data....
4. Activating a dynamic WEBDEV site
TmeLine control linked to a data file or variable
You can create TimeLine controls directly linked to the data....
HFSQL Control Center: HFSQL Client/Server backups
The HFSQL Control Center is used to manage the backups of HFSQL Client/Server data files......
HSL (Function)
Creates a color from its hue, saturation and lightness.
Debugger: Running a project step by step
Running a project step-by-step allows you to start the debugger when launching the application......
Customizing the interface of a Table control
In a Table control, you have the ability to customize the following elements......
Error 1004: To explicitly access an element of the base class '%1', use the syntax
CameraCapture (Function)
Captures the images received from the camera: as an image: takes a photo. as a video: records a video. Function kept for "Version-26-compatible" Camera controls....
<Camera>.Capture (Function)
Captures the images received from the camera: as an image: takes a photo. as a video: records a video. Function kept for "Version-26-compatible" Camera controls....
Indirection operators
The { and } operators are used to access a control, a variable, a class member or a file item by dynamically building the name of control, variable, class member or item...
InitialHeight (Property)
The InitialHeight property is used to: Find out the creation height of a control or window. Modify the base height used to anchor the controls "in height". Find out the creation height of a block or control in a report....
VideoCapture (Function)
Captures the images received from the camera: as an image: takes a photo. as a video: records a video. Function kept for "Version-26-compatible" Camera controls....
iParameterPreview (Function)
Configures the print preview: display a message regarding the resources of current computer. display or not the ribbon panes (as well as the buttons found). the export options available in the mini preview window....
<Source>.CancelDeclaration (Function)
Allows you to: Delete a declaration made previously using HDeclare, HDeclareExternal, HDescriveFile. After this operation, the table is no longer recognized by the HFSQL engine. Free the resources of a query (after calling HExecuteQuery or HExecuteSQLQuery)....
HCancelDeclaration (Function)
Allows you to: Delete a declaration made previously using HDeclare, HDeclareExternal, HDescriveFile. After this operation, the table is no longer recognized by the HFSQL engine. Free the resources of a query (after calling HExecuteQuery or HExecuteSQLQuery)....
dDifferenceImage (Function)
Compares two images and returns a grayscale image and a percentage determining the differences between the images. This new function is available from WINDEV Suite SaaS 2025 - Update 3....
ChangeSourceWindow (Function)
Dynamically changes the window displayed in an Internal Window control. Case of internal window dequeues Modifies the currently displayed window. This modification is saved in the list of internal windows to scroll....