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The Timer API provides essential timer services for Microsoft ActiveX Controls, supports external reference clocks, and enables synchronization between controls and scripts.
Overviews/Tutorials
| Topic | Contents |
|---|---|
| Timer API | Timers are essential to multimedia and animation applications. Good animation depends on timer accuracy and synchronization between multiple time-dependent components. Developers can use the Microsoft Timer API to synchronize time-dependent components such as audio and video clips. |
Objects
| Topic | Contents |
|---|---|
| ITimer | This object provides access to timer functions such as ITimer::Freeze and ITimer::GetTime. |
| ITimerService | This object creates a timer object and retrieves and sets named timers. |
| ITimerSink | This object provides access to a timer's schedule. |
Interfaces
| Topic | Contents |
|---|---|
| ITimer | Implements timer functions. |
| ITimerEx | Provides a timer that automatically halts when the page is not visible or is loaded into an inactive tab. |
| ITimerService | Creates, gets, and sets timer objects. |
| ITimerSink | Implements a method that is called by the timer service for a scheduled event. |
Methods
| Topic | Contents |
|---|---|
| ITimer::Advise | Schedules single or periodic notifications. |
| ITimerService::CreateTimer | Creates a timer object. |
| ITimer::Freeze | Halts the timer temporarily. |
| ITimerService::GetNamedTimer | Gets the named timer. |
| ITimer::GetTime | Gets the current time of the timer. |
| ITimerSink::OnTimer | Called by the timer service for a scheduled event. |
| ITimerEx::SetMode | Sets the visibility mode of the timer. |
| ITimerService::SetNamedTimerReference | Replaces the named timer's reference timer with a new reference timer. |
| ITimer::Unadvise | Cancels an event request. |