ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

<Document variable>.Replace (Function)
Finds all the instances of a character string and replaces them with another string in a Document variable.
<modbusSession>.Disconnect (Function)
Closes the Modbus session.
Button control properties
Button controls in a window or page can be manipulated using different WLanguage properties......
The "Window position preview" pane
The "Window position preview" pane is used to view and/or modify the opening position of the windows currently modified (according to the screen resolution used)......
Properties associated with the rows of a TreeView control
The rows of TreeView controls in a window or page can be manipulated using different WLanguage properties......
dPolygon (Function)
Draws a polygon: in an Image control, in an Image variable, in a WDPic variable (on the background layer), in a picLayer variable....
QuickActionAdd (Function)
Adds a new quick action to the application.
PVTInfoXY (Function)
Returns the values of headers corresponding to a position in a Pivot Table control in pixels.
ParallelTaskRequestCancellation (Function)
Requests the cancellation of a parallel task.
DocSelect (Function)
Selects a fragment in a Word Processing control.
BeaconDetectPrecise (Function)
Used to find the Beacons near the device.
JSONToXML (Function)
Converts a JSON string to XML.
<Image>.DrawRectangleGradient (Function)
Draws a rectangle in an Image control.
<Image>.PixelOpacity (Function)
Identifies the opacity of a pixel in an image (in an Image control) with an Alpha channel.
<Image>.Rotation (Function)
Rotates an Image control.
<Icon variable>.SaveICO (Function)
Saves an image in icon format either in a file, or in memory.
<Image>.EndDrawing (Function)
Deletes all the drawings made since the last call to dStartDrawing.
<Image>.StartDrawing (Function)
Indicates that the drawing functions that will be used are intended for the specified Image control.
<Image>.HorizontalSymmetry (Function)
Flips an image in an Image control with respect to a horizontal axis (symmetry with respect to a horizontal axis).
<Image>.VerticalSymmetry (Function)
Flips an image contained in an Image control with respect to a vertical axis (symmetry with respect to a vertical axis).
<fbSession variable>.GetUserInformation (Function)
Gets the Facebook information of the connected user.
<mqttSession variable>.Subscribe (Function)
Used to subscribe to a MQTT notification.
<mqttSession variable>.Unsubscribe (Function)
Allows you to unsubscribe from a MQTT notification.