IDCompositionMatrixTransform3D::SetMatrixElement(int, int, IDCompositionAnimation*) method

Animates the value of one element of the matrix of this 3D transform.

Syntax


HRESULT SetMatrixElement(
  [inint                    row,
  [inint                    column,
  [in] IDCompositionAnimation *animation
);

Parameters

row [in]

Type: int

The row index of the element to change. This value must be between 0 and 3, inclusive.

column [in]

Type: int

The column index of the element to change. This value must be between 0 and 3, inclusive.

animation [in]

Type: IDCompositionAnimation*

An animation that represents how the value of the specified element changes over time. This parameter must not be NULL.

Return value

Type: HRESULT

If the function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code. See DirectComposition Error Codes for a list of error codes.

Remarks

This method makes a copy of the specified animation. If the object referenced by the animation parameter is changed after calling this method, the change does not affect the specified element unless this method is called again. If the specified element was previously animated, calling this method replaces the previous animation with the new animation.

This method fails if animation is an invalid pointer or if it was not created by the same IDCompositionDevice interface as the affected transform. The interface cannot be a custom implementation; only interfaces created by Microsoft DirectComposition can be used with this method.

Requirements

Minimum supported client

Windows 8 [desktop apps only]

Minimum supported server

Windows Server 2012 [desktop apps only]

Header

Dcomp.h

Library

Dcomp.lib

DLL

Dcomp.dll

See also

IDCompositionMatrixTransform3D

 

 

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