IUIAnimationManager::SetConcludePriorityComparison method (uianimation.h)

Sets the priority comparison handler to be called to determine whether a scheduled storyboard can be concluded.

Syntax

HRESULT SetConcludePriorityComparison(
  [in, optional] IUIAnimationPriorityComparison *comparison
);

Parameters

[in, optional] comparison

The priority comparison handler for conclusion. The specified object must implement the IUIAnimationPriorityComparison interface or be NULL. See Remarks.

Return value

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

Remarks

Setting a priority comparison handler with this method enables the application to indicate when scheduling conflicts can be resolved by concluding the scheduled storyboard.

A scheduled storyboard can be concluded only if it contains a loop with a repetition count of UI_ANIMATION_REPEAT_INDEFINITELY and the priority comparison object registered with this method returns S_OK. If the storyboard is concluded, the current repetition of the loop completes, and the reminder of the storyboard then plays.

Passing NULL for the comparison parameter causes Windows Animation to release its reference to any handler object you passed in earlier. This technique can be essential for breaking reference cycles without having to call the IUIAnimationManager::Shutdown method.

Requirements

See also

IUIAnimationManager

IUIAnimationManager::SetCancelPriorityComparison

IUIAnimationManager::SetCompressPriorityComparison

IUIAnimationManager::SetTrimPriorityComparison

IUIAnimationPriorityComparison