AlphaImage Class

Use the AlphaImage Web control to render PNG images in Microsoft Internet Explorer.

Inheritance Hierarchy


Namespace:  Microsoft.SharePoint.WebControls
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: No


<AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
Public Class AlphaImage _
    Inherits SPControl
Dim instance As AlphaImage
[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public class AlphaImage : SPControl


The AlphaImage Web control uses ECMAScript (JScript, JavaScript) to change the filter style for a PNG image. This allows Microsoft Internet Explorer to render transparency for the PNG image.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also


AlphaImage Members

Microsoft.SharePoint.WebControls Namespace