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  • Overview
  • Gesture variable
  • Example
  • Retrieving gesture information
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Stored procedures
Overview
The Gesture variable is used to retrieve the gesture parameters (swipe): direction, speed, distance, ...
This variable can be used:
  • in the swipe event of elements in a Looper control, to know the swipe direction.
  • in multitouch events (zoom, scroll and swipe) to avoid declaring parameters in the events.
Versions 19 and later
WEBDEV - Browser code The Gesture variable is now available in browser code.
New in version 19
WEBDEV - Browser code The Gesture variable is now available in browser code.
WEBDEV - Browser code The Gesture variable is now available in browser code.
Gesture variable
The Gesture variable includes the following elements:
Real
Azimuth angle (expressed in degrees) of an Apple Pencil in relation to the mark of current control.
This variable is filled in the event "Pressed/Left button down" only.
Integer constant

Direction of the gesture. Can correspond to one of the following constants:
  • BottomToTop: Swipe from bottom to top.
  • RightToLeft: Swipe from right to left.
  • LeftToRight: Swipe from left to right.
  • TopToBottom: Swipe from top to bottom.
This variable is filled in Scroll and Swipe events.
For a scroll: value of the move (in pixels) in the direction specified by Gesture.Direction.
For a pinch zoom gesture: value of the spacing (in pixels) between two contact points.
This variable is filled in Scroll and Pinch zoom events.
Real
Angle (expressed in degrees) corresponding to the inclination of an Apple Pencil in relation to the tablet plan.
This variable is filled in the event "Pressed/Left button down" only.
Real
Pressure during a press.
This pressure can take a value included between 0,0 and 1,0.
This variable is filled in the event "Pressed/Left button down" only.
Real
Maximum pressure during a press.
This pressure can take a value included between 0,0 and 1,0.
This variable is filled in the event "Pressed/Left button down" only.
Integer
Speed of the move in the direction specified by Gesture.Direction.
This speed is expressed in pixels per second.
This variable is filled in Swipe events.
Example

Retrieving gesture information

// Scroll with Finger event of IMG_Image
SWITCH Gesture.Direction
CASE RightToLeft: RADIO_Direction = 1
CASE LeftToRight: RADIO_Direction = 2
CASE TopToBottom: RADIO_Direction = 3
CASE BottomToTop: RADIO_Direction = 4
END
EDT_Speed = Gesture.Speed
EDT_Distance = Gesture.Distance
Minimum version required
  • Version 18
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