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  • Limit: types of controls
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Stored procedures
Opacity (Property)
In french: Opacité
The Opacity property is used to get and define the opacity percentage for a window, or for controls in a window or page. This gives you the ability to make a window transparent (or a control found in a window or in a page).
Remarks:
  • WEBDEV - Server code This property can also be applied to a page control.
  • WEBDEV - Server code This property may not be supported by the former browsers (Internet Explorer 5.5 and earlier, ...).
  • For a Color variable, the opacity value is not included between 0 and 100 but between 0 and 255.
Example
Syntax

Finding out the percentage of opacity applied to a window or to a control (found in a window or in a page) Hide the details

<Percentage of opacity> = <Element used>.Opacity
<Percentage of opacity>: Integer
Percentage of opacity for the specified element (window or control). This percentage is included between 0 (invisible window) and 100 (opaque window).
<Element used>: Name of window, control or group of controls
Name of the element to be used:
  • Name of the window,
  • Name of control,

Modifying the percentage of opacity applied to a window or to a control (found in a window or in a page) Hide the details

<Element used>.Opacity = <Percentage of opacity>
<Element used>: Name of window, control or group of controls
Name of the element to be used:
  • Name of the window,
  • Name of control,
<Percentage of opacity>: Integer
New percentage of opacity that will be applied to the specified element (window or control). This percentage is included between 0 (invisible window) and 100 (opaque window).
Remarks
WEBDEV - Server codePHPAjax

Limit: types of controls

The Opacity property is only available for the following controls:
  • Edit control,
  • Static,
  • Button,
  • Check Box,
  • Radio Button,
  • List box, combo box,
  • Image,
  • Table cell (in read-only),
  • TreeView,
  • WEBDEV - Server codeWEBDEV - Browser codePHP Formatted display control,
  • WEBDEV - Server codeWEBDEV - Browser codePHP HTML control,
  • WEBDEV - Server codeWEBDEV - Browser codePHP Link control,
  • WEBDEV - Server codePHP HTML static,
  • WEBDEV - Server codePHP Pager,
  • WEBDEV - Server codeWEBDEV - Browser codePHP Image (clickable or not),
  • WEBDEV - Server codeWEBDEV - Browser code Breadcrumb,
  • WEBDEV - Server codeWEBDEV - Browser code Thumbnail,
  • WEBDEV - Server codeWEBDEV - Browser code iFrame,
  • WEBDEV - Server codeWEBDEV - Browser code Chart,
  • WEBDEV - Server code Dashboard.
Related Examples:
Opacity property Unit examples (WEBDEV): Opacity property
[ + ] This example presents the use of the..Opacity property by programming on a cell.
The cell contains a virtual keyboard used to enter a password.
Transparency on the controls Unit examples (WINDEV): Transparency on the controls
[ + ] Using the transparency on controls.
Transparency on a window Unit examples (WINDEV): Transparency on a window
[ + ] Using the transparency of windows
WD Magnifier Complete examples (WINDEV): WD Magnifier
[ + ] This example enables you to zoom part of the screen with a magnifier.
The maximum zoom value is set to 8.
Summary of the example supplied with WINDEV:
The WLanguge function named dCopyBlt() and the WLanguage property named ..Opacity allow you to perform a capture of the Windows desktop at the location of a window without this window appearing in the screen shot.
This example uses this tip to zoom the part of the screen found below the magnifier.
Minimum version required
  • Version 9
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Last update: 09/27/2023

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