IUIAnimationStoryboard2::AddKeyframeAfterTransition method (uianimation.h)

Article
02/22/2024

Adds a keyframe at the end of the specified transition.

Syntax

HRESULT AddKeyframeAfterTransition(
  [in]  IUIAnimationTransition2 *transition,
  [out] UI_ANIMATION_KEYFRAME   *keyframe
);

Parameters

[in] transition

The transition after which a keyframe is to be added.

[out] keyframe

The keyframe to be added.

Return value

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

Return code	Description
UI_E_TRANSITION_NOT_IN_STORYBOARD	The transition has not been added to the storyboard.

See Windows Animation Error Codes for a list of error codes.

Remarks

A keyframe represents a moment in time within a storyboard and can be used to specify the start and end times of transitions. Because keyframes can be added at the ends of transitions, their offsets from the start of the storyboard may not be known until the storyboard is playing.

Requirements

Requirement	Value
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