通过

grayScale Attribute | GrayScale Property

  • 项目

Sets or retrieves the value that indicates whether content is displayed as the average of the RGB component values.

Syntax

HTML
{ filter:progid:DXImageTransform.Microsoft.BasicImage(
    grayScale = bGray ... ) ... }
Scripting
object.filters.item(
    "DXImageTransform.Microsoft.BasicImage").GrayScale [ = bGray ]

Possible Values

bGray Boolean that specifies or receives one of the following values:
1
Display content as the grayscale average of the RGB values.
0
Default. Display content with normal RGB values.

The property is read/write. The property has a default value of 0.

Example

This sample sets the BasicImage filter to display the content of a DIV element in grayscale.

<!-- This DIV is the target container for an image.  -->        
    <DIV ID="oDiv" STYLE="position:absolute; left:270px;" >
        An Image - >    
        <IMG SRC='/workshop/graphics/earglobe.gif' />
    </DIV>
<BUTTON onclick="oDiv.style.filter=
        'progid:DXImageTransform.Microsoft.BasicImage(grayScale=1)'">
    Gray</BUTTON><BR/>
<BUTTON onclick="oDiv.style.filter=''">Clear Filter</BUTTON><BR/>

Applies To

BasicImage