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IDCompositionShadowEffect::SetStandardDeviation(IDCompositionAnimation*) method (dcomp.h)

  • Article

Sets the amount of blur to be applied to the alpha channel of the image.

Syntax

HRESULT SetStandardDeviation(
  [in] IDCompositionAnimation *animation
);

Parameters

[in] animation

Type: IDCompositionAnimation*

An animation that represents how the amount of blur to be applied to the alpha channel of the image changes over time. You can compute the blur radius of the kernel by multiplying the standard deviation by 3. The units of both the standard deviation and blur radius are DIPs.
This parameter must not be NULL.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

Requirement Value
Target Platform Windows
Header dcomp.h
Library Dcomp.lib
DLL Dcomp.dll

See also

IDCompositionShadowEffect