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MaskFilter Filter

DHTML文档教程

Displays transparent pixels of the object content as a color mask, and makes the nontransparent pixels transparent.

dhtml语法

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

DHTML可能的值

sPropertiesString that specifies one or more properties exposed by the filter.

Members Table

AttributePropertyDescription
colorColor Sets or retrieves the value of the color applied with the filter.
enabledEnabled Sets or retrieves a value that indicates whether the filter is enabled.

Remarks

You can create this effect more efficiently with the BasicImage 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.

Examples

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

This feature requires Microsoft® Internet Explorer 5.5 or later. Click the following icon to install the latest version. Then reload this page to view the sample.

This example uses the MaskFilter filter and the color property to make a magenta mask of the div—that is, all transparent pixels are colored magenta and all nontransparent pixels are made transparent.

<STYLE>
DIV.aFilter {filter:
progid:DXImageTransform.Microsoft.MaskFilter(color=magenta);
width: 100px;}
</STYLE>
<DIV CLASS="aFilter">
This text is masked with the color "magenta".
</DIV>
This feature requires Microsoft® Internet Explorer 5.5 or later. Click the following icon to install the latest version. Then reload this page to view the sample.

applies to

A, 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

更多语法参考

scripting filters, Filter Design Considerations