preserveAlpha property
Indicates that the convolution will apply to all channels or just the color channels.
This property is read-only.
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Syntax
HRESULT get_preserveAlpha(
[out] SVGAnimatedBoolean **boolean
);
Property values
Type: SVGAnimatedBoolean
One of the following:
| Value | Condition |
|---|---|
| false false | Indicates that the convolution will apply to all channels, including the alpha channel. |
| true true | Indicates that the convolution will apply only to the color channels. In this case, the filter will temporarily un-premultiply the color component values, apply the kernel, and then re-premultiply at the end. |
Standards information
- Scalable Vector Graphics: Filter Effects, Section 15.25.12
Remarks
If ISVGFEConvolveMatrixElement::preserveAlpha is not specified, then the effect is as if a value of false were specified.