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IDCompositionGaussianBlurEffect::SetStandardDeviation(float) method (dcomp.h)

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

Syntax

HRESULT SetStandardDeviation(
  [in] float amount
);

Parameters

[in] amount

Type: float

The amount of blur to be applied to the image. 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. A value of zero DIPs disables this effect entirely.

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

IDCompositionGaussianBlurEffect