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Handles events that occur before an animation update begins.
Syntax
HRESULT OnPreUpdate();
Return value
If the method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code. See UIAnimation Error Codes for a list of error codes.
Remarks
For each tick, a timer calls the following sequence of methods:
- IUIAnimationTimerEventHandler::OnPreUpdate
- IUIAnimationTimerUpdateHandler::OnUpdate
- IUIAnimationTimerEventHandler::OnPostUpdate
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 |
| Target Platform | Windows |
| Header | uianimation.h |
| DLL | UIAnimation.dll |