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  • Overview
  • The parallax effect in the window editor
  • Overview
  • Defining the parallax effect in the window editor
  • Defining the parallax by programming
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Overview
The "Parallax" effects are used to scroll the elements found in the interface at different speeds when the scrollbar is used.
You can define:
  • a parallax of controls: In a window or in a page, the parallax animations are used to configure the speed at which the control is moved or reduced in relation to the scrollbar move in the window (or in the page).
  • a parallax of background image: In a page, a parallax animation can be used on the background images. When the user is using the scrollbar, the background image will use a specific move speed in relation to the scrollbar move in the page.
The Parallax effects are available:
WINDEV
The parallax effect in the window editor

Overview

The window editor proposes a parallax effect of control.
Some examples:
  • If no parallax is defined, the controls and the window scrollbar move at the same speed.
  • If the control is fixed, the control will not move even if the scrollbar is used.
  • The parallax is used to perform specific effects, for example by making the move speed of the control (or its reduction rate) change in relation to the move speed of the window scrollbar.

Defining the parallax effect in the window editor

To define the parallax effect of a control:
  1. Open the control description window.
  2. In the "UI" tab, expand the "Parallax" option.
  3. Choose the requested option:
    • No parallax: The control moves in height according to the move of window scrollbar.
    • Material Design effect without reduction: The control moves in height proportionally to the move scrollbar in the window. In this case, the move speed is set to 50% and the reduction speed is set to 0%.
    • Material Design effect with reduction: The control is reduced in height proportionally to the scrollbar move in the window. In this case, the move speed is set to 50% and the reduction speed is set to 50%.
      For an Image control, the image follows the display mode.
      • If the image is stretched, it will be distorted to be entirely displayed in the height of the control.
      • If the image is homothetic centered, it will be reduced proportionally to the control height.
    • Fixed control: The control is fixed. It does not move in the window. It is always visible when the scrollbar moves in the window. In this case, the move speed is set to 0% and the reduction speed is set to 100%.
    • Customize the effect: You have the ability to specify the Y parallax rate (move speed of control) and the Height parallax rate (reduction speed of control).
Remark: The parallax effect is available for all types of controls.

Defining the parallax by programming

The following properties are used to define the parallax of a control by programming:
Versions 21 and later
ParallaxRateHeight
New in version 21
ParallaxRateHeight
ParallaxRateHeight
..ParallaxRateHeight is used to find out and specify the speed at which a control is reduced when the scrollbar found in the window, the internal window or the page moves.
Versions 21 and later
ParallaxRateY
New in version 21
ParallaxRateY
ParallaxRateY
..ParallaxRateY is used to find out and specify the speed at which a control moves when the scrollbar found in the window, the internal window or the page moves.
Minimum version required
  • Version 21
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