UI_ANIMATION_PRIORITY_EFFECT enumeration (uianimation.h)

Defines potential effects on a storyboard if a priority comparison returns false.

Syntax

typedef enum __MIDL___MIDL_itf_UIAnimation_0000_0008_0001 {
  UI_ANIMATION_PRIORITY_EFFECT_FAILURE = 0,
  UI_ANIMATION_PRIORITY_EFFECT_DELAY = 1
} UI_ANIMATION_PRIORITY_EFFECT;

Constants

UI_ANIMATION_PRIORITY_EFFECT_FAILURE Value: 0 This storyboard might not be successfully scheduled.
UI_ANIMATION_PRIORITY_EFFECT_DELAY Value: 1 The storyboard will be scheduled, but might start playing later.

Remarks

This enumeration is used as the priorityEffect parameter of IUIAnimationPriorityComparison::HasPriority, informing the client of the potential effect on the storyboard to be scheduled when the return value is false (S_FALSE). UI_ANIMATION_PRIORITY_EFFECT_FAILURE means that the attempt to schedule the storyboard might fail if the return value is false. UI_ANIMATION_PRIORITY_EFFECT_DELAY means that the attempt to schedule the storyboard will succeed, but if the return value is false, the storyboard could play later than it would otherwise.

This enumeration can help an application decide how aggressive to be about reducing latency in the UI. For example, if the application returns true when the effect is UI_ANIMATION_PRIORITY_EFFECT_DELAY, then other animations might get canceled or compressed even though doing so was not strictly necessary to play a new animation within the application-specified longest acceptable delay.

Requirements

Requirement	Value
Minimum supported client	Windows 7, Windows Vista and Platform Update for Windows Vista [desktop apps | UWP apps]
Minimum supported server	None supported
Header	uianimation.h

See also

IUIAnimationPriorityComparison::HasPriority