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Glow Filter

This topic documents a feature of Visual Filters and Transitions, which is deprecated as of Windows Internet Explorer 9.

Adds radiance around the outside edges of the content of the object so that it appears to glow.

Syntax

HTML
<ELEMENT STYLE=
"filter:progid:DXImageTransform.Microsoft.Glow(sProperties)"
... >
Internet Explorer 5.5 or later
Scripting
object .style.filter =
"progid:DXImageTransform.Microsoft.Glow(sProperties)"
Internet Explorer 5.5 or later

Possible Values

sProperties String that specifies one or more properties exposed by the filter.

Members Table

The following table lists the members exposed by the Glow object.

Attributes/Properties
Attribute Property Description
color Color

Sets or retrieves the value of the color applied with the filter.

enabled Enabled

Sets or retrieves a value that indicates whether the filter is enabled.

strength Strength

Sets or retrieves the distance, in pixels, that a filter effect extends.

Remarks

The radiance appears only around the outermost edge of content within the object's boundary. Some variations on how this works include the following:

  • If the filtered object has text with no background color or image, then each text character is framed with a glow.
  • If the filtered object has a background color or image, then the whole bounding container is framed with a glow.
  • If the filtered object's child elements are positioned out of the parent's bounding container, only the content inside the bounding container is affected by the filter.

This effect is supported in Microsoft Internet Explorer 4.0. For more information about Internet Explorer 4.0 filter behavior, see Downlevel Support and Internet Explorer 4.0 Filters.

The object that the filter is applied to must have layout before the filter effect displays. You can give the object layout by setting the height or width property, setting the position property to absolute, setting the writingMode property to tb-rl, or setting the contentEditable property to true.

You can assign multiple filters or transitions to an object by declaring each in the filter property of the object. The following div declaration assigns two filters and a Wheel transition to a div element.


<DIV STYLE="width:100%; filter:
    progid:DXImageTransform.Microsoft.MotionBlur(strength=13, direction=310)
    progid:DXImageTransform.Microsoft.Blur(pixelradius=2)
    progid:DXImageTransform.Microsoft.Wheel(duration=3);">
        Blurry text with smudge of gray.</div>     
When multiple filters are applied to an object, each filter is processed in source order, with the exception of procedural surfaces, which are computed first. To emphasize a filter's effect, place it last in source order or on the object's parent. Always place transitions last in source order.

Note  As of Internet Explorer 9, the visual effect of this filter is only applied when content is displayed on a screen; the effect is not applied when content is printed.

Examples

The following example shows how to change the effects of this filter by modifying its properties.

Code example: http://samples.msdn.microsoft.com/workshop/samples/author/filter/Glow.htm

This example uses the Glow filter to add blue radiance around text within a DIV object.


<STYLE>
   DIV.aFilter {
    filter:progid:DXImageTransform.Microsoft.Glow(Color=blue,Strength=5);
    width: 150px;}
</STYLE>

<DIV CLASS="aFilter">
Glowing Text
</DIV>

Code example: http://samples.msdn.microsoft.com/workshop/samples/author/filter/shortSamples/glowEX1.htm

Applies To

A, ABBR, ACRONYM, ADDRESS, B, BDO, BIG, BLOCKQUOTE, BODY, BUTTON, CAPTION, CENTER, CITE, CODE, CUSTOM, DD, DEL, DFN, DIR, DIV, DL, DT, EM, FIELDSET, FONT, FORM, FRAME, hn, I, IFRAME, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, INS, KBD, LABEL, LEGEND, LI, MARQUEE, MENU, NOBR, OL, OBJECT, P, PLAINTEXT, PRE, Q, RT, RUBY, runtimeStyle, S, SAMP, SMALL, SPAN, STRIKE, STRONG, style, SUB, SUP, TABLE, TD, TEXTAREA, TH, TT, U, UL, VAR, XMP

See Also

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