IUIAnimationTransitionLibrary2::CreateLinearVectorTransitionFromSpeed method (uianimation.h)

Creates a linear-speed vector transition in the specified dimension.


HRESULT CreateLinearVectorTransitionFromSpeed(
  [in]  DOUBLE                  speed,
  [in]  const DOUBLE            *finalValue,
  [in]  UINT                    cDimension,
  [out] IUIAnimationTransition2 **transition


[in] speed

The absolute value of the velocity in units/second.

[in] finalValue

A vector (of size cDimension) that contains the final values of the animation variable at the end of the transition.

[in] cDimension

The number of dimensions to apply the transition. This parameter specifies the number of values listed in finalValue.

[out] transition

The new linear-speed transition.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code. See Windows Animation Error Codes for a list of error codes.


During a linear-speed transition, the value of the animation variable changes at a specified rate. The duration of the transition is determined by the difference between the initial value and the specified final value.

The following figure shows the change in value over time of an animation variable during a linear-speed transition.

Diagram showing the linear transition from speed


Minimum supported client Windows 8, Windows 7 and Platform Update for Windows 7 [desktop apps | UWP apps]
Minimum supported server None supported
Target Platform Windows
Header uianimation.h
DLL UIAnimation.dll

See also