[PATCH] include: Add UI_ANIMATION_KEYFRAME_STORYBOARD_START constant

[Alistair Leslie-Hughes]

Signed-off-by: Alistair Leslie-Hughes 
---
 include/uianimation.idl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uianimation.idl b/include/uianimation.idl
index e8b366e8fb9..631af118990 100644
--- a/include/uianimation.idl
+++ b/include/uianimation.idl
@@ -30,6 +30,7 @@ interface IUIAnimationTransitionLibrary;

typedef DOUBLE UI_ANIMATION_SECONDS;
 typedef struct { int _; } *UI_ANIMATION_KEYFRAME;
+const UI_ANIMATION_KEYFRAME UI_ANIMATION_KEYFRAME_STORYBOARD_START = (UI_ANIMATION_KEYFRAME)(-1);

const UI_ANIMATION_SECONDS UI_ANIMATION_SECONDS_EVENTUALLY = -1.0;