MediaTimeline Class
Provides a Timeline for media content.
Assembly: PresentationCore (in PresentationCore.dll)
| Name | Description | |
|---|---|---|
![]() | MediaTimeline() | Initializes a new instance of the MediaTimeline class. |
![]() | MediaTimeline(Nullable<TimeSpan>) | Initializes a new instance of the MediaTimeline that begins at the specified time. |
![]() | MediaTimeline(Nullable<TimeSpan>, Duration) | Initializes a new instance of the MediaTimeline that begins at the specified time and lasts for the specified duration. |
![]() | MediaTimeline(Nullable<TimeSpan>, Duration, RepeatBehavior) | Initializes a new instance of the MediaTimeline class that begins at the specified time over the specified time and has the specified repeat behavior. |
![]() | MediaTimeline(Uri^) | Initializes a new instance of a MediaTimeline class using the supplied Uri as the media source. |
| Name | Description | |
|---|---|---|
![]() | AccelerationRatio | |
![]() | AutoReverse | Gets or sets a value that indicates whether the timeline plays in reverse after it completes a forward iteration. (Inherited from Timeline.) |
![]() | BeginTime | |
![]() | CanFreeze | Gets a value that indicates whether the object can be made unmodifiable. (Inherited from Freezable.) |
![]() | DecelerationRatio | |
![]() | DependencyObjectType | Gets the DependencyObjectType that wraps the CLR type of this instance. (Inherited from DependencyObject.) |
![]() | Dispatcher | Gets the Dispatcher this DispatcherObject is associated with. (Inherited from DispatcherObject.) |
![]() | Duration | Gets or sets the length of time for which this timeline plays, not counting repetitions. (Inherited from Timeline.) |
![]() | FillBehavior | |
![]() | HasAnimatedProperties | Gets a value that indicates whether one or more AnimationClock objects is associated with any of this object's dependency properties.(Inherited from Animatable.) |
![]() | IsFrozen | Gets a value that indicates whether the object is currently modifiable. (Inherited from Freezable.) |
![]() | IsSealed | Gets a value that indicates whether this instance is currently sealed (read-only).(Inherited from DependencyObject.) |
![]() | Name | |
![]() | RepeatBehavior | Gets or sets the repeating behavior of this timeline. (Inherited from Timeline.) |
![]() | Source | Gets or sets the media source associated with the timeline. |
![]() | SpeedRatio |
| Name | Description | |
|---|---|---|
![]() | AllocateClock() | Creates a MediaClock for this timeline.(Overrides Timeline::AllocateClock().) |
![]() | ApplyAnimationClock(DependencyProperty^, AnimationClock^) | Applies an AnimationClock to the specified DependencyProperty. If the property is already animated, the SnapshotAndReplace handoff behavior is used.(Inherited from Animatable.) |
![]() | ApplyAnimationClock(DependencyProperty^, AnimationClock^, HandoffBehavior) | Applies an AnimationClock to the specified DependencyProperty. If the property is already animated, the specified HandoffBehavior is used.(Inherited from Animatable.) |
![]() | BeginAnimation(DependencyProperty^, AnimationTimeline^) | Applies an animation to the specified DependencyProperty. The animation is started when the next frame is rendered. If the specified property is already animated, the SnapshotAndReplace handoff behavior is used.(Inherited from Animatable.) |
![]() | BeginAnimation(DependencyProperty^, AnimationTimeline^, HandoffBehavior) | Applies an animation to the specified DependencyProperty. The animation is started when the next frame is rendered. If the specified property is already animated, the specified HandoffBehavior is used. (Inherited from Animatable.) |
![]() | CheckAccess() | Determines whether the calling thread has access to this DispatcherObject.(Inherited from DispatcherObject.) |
![]() | ClearValue(DependencyProperty^) | Clears the local value of a property. The property to be cleared is specified by a DependencyProperty identifier. (Inherited from DependencyObject.) |
![]() | ClearValue(DependencyPropertyKey^) | Clears the local value of a read-only property. The property to be cleared is specified by a DependencyPropertyKey. (Inherited from DependencyObject.) |
![]() | Clone() | Creates a modifiable clone of this MediaTimeline, making deep copies of this object's values. When copying dependency properties, this method copies resource references and data bindings (but they might no longer resolve) but not animations or their current values. |
![]() | CloneCore(Freezable^) | Makes this instance a deep copy of the specified MediaTimeline. When copying dependency properties, this method copies resource references and data bindings (but they might no longer resolve) but not animations or their current values.(Overrides Freezable::CloneCore(Freezable^).) |
![]() | CloneCurrentValue() | Creates a modifiable clone of this MediaTimeline object, making deep copies of this object's current values. Resource references, data bindings, and animations are not copied, but their current values are. |
![]() | CloneCurrentValueCore(Freezable^) | Makes this instance a modifiable deep copy of the specified MediaTimeline using current property values. Resource references, data bindings, and animations are not copied, but their current values are.(Overrides Freezable::CloneCurrentValueCore(Freezable^).) |
![]() | CoerceValue(DependencyProperty^) | Coerces the value of the specified dependency property. This is accomplished by invoking any CoerceValueCallback function specified in property metadata for the dependency property as it exists on the calling DependencyObject.(Inherited from DependencyObject.) |
![]() | CreateClock() | Creates a new MediaClock associated with the MediaTimeline. |
![]() | CreateClock(Boolean) | |
![]() | CreateInstance() | |
![]() | CreateInstanceCore() | Creates a new instance of the MediaTimeline.(Overrides Freezable::CreateInstanceCore().) |
![]() | Equals(Object^) | Determines whether a provided DependencyObject is equivalent to the current DependencyObject.(Inherited from DependencyObject.) |
![]() | Finalize() | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.) |
![]() | Freeze() | |
![]() | FreezeCore(Boolean) | Makes this instance of MediaTimeline unmodifiable or determines whether it can be made unmodifiable.(Overrides Timeline::FreezeCore(Boolean).) |
![]() | GetAnimationBaseValue(DependencyProperty^) | Returns the non-animated value of the specified DependencyProperty.(Inherited from Animatable.) |
![]() | GetAsFrozen() | |
![]() | GetAsFrozenCore(Freezable^) | Makes this instance a clone of the specified MediaTimeline object. (Overrides Timeline::GetAsFrozenCore(Freezable^).) |
![]() | GetCurrentValueAsFrozen() | |
![]() | GetCurrentValueAsFrozenCore(Freezable^) | Makes this instance a frozen clone of the specified MediaTimeline. Resource references, data bindings, and animations are not copied, but their current values are.(Overrides Timeline::GetCurrentValueAsFrozenCore(Freezable^).) |
![]() | GetHashCode() | Gets a hash code for this DependencyObject.(Inherited from DependencyObject.) |
![]() | GetLocalValueEnumerator() | Creates a specialized enumerator for determining which dependency properties have locally set values on this DependencyObject. (Inherited from DependencyObject.) |
![]() | GetNaturalDuration(Clock^) | |
![]() | GetNaturalDurationCore(Clock^) | Retrieves the Duration from a specified clock.(Overrides Timeline::GetNaturalDurationCore(Clock^).) |
![]() | GetType() | |
![]() | GetValue(DependencyProperty^) | Returns the current effective value of a dependency property on this instance of a DependencyObject. (Inherited from DependencyObject.) |
![]() | InvalidateProperty(DependencyProperty^) | Re-evaluates the effective value for the specified dependency property(Inherited from DependencyObject.) |
![]() | MemberwiseClone() | |
![]() | OnChanged() | |
![]() | OnFreezablePropertyChanged(DependencyObject^, DependencyObject^) | Ensures that appropriate context pointers are established for a DependencyObjectType data member that has just been set.(Inherited from Freezable.) |
![]() | OnFreezablePropertyChanged(DependencyObject^, DependencyObject^, DependencyProperty^) | This member supports the Windows Presentation Foundation (WPF) infrastructure and is not intended to be used directly from your code.(Inherited from Freezable.) |
![]() | OnPropertyChanged(DependencyPropertyChangedEventArgs) | Overrides the DependencyObject implementation of OnPropertyChanged to also invoke any Changed handlers in response to a changing dependency property of type Freezable.(Inherited from Freezable.) |
![]() | ReadLocalValue(DependencyProperty^) | Returns the local value of a dependency property, if it exists. (Inherited from DependencyObject.) |
![]() | ReadPreamble() | |
![]() | SetCurrentValue(DependencyProperty^, Object^) | Sets the value of a dependency property without changing its value source. (Inherited from DependencyObject.) |
![]() | SetValue(DependencyProperty^, Object^) | Sets the local value of a dependency property, specified by its dependency property identifier. (Inherited from DependencyObject.) |
![]() | SetValue(DependencyPropertyKey^, Object^) | Sets the local value of a read-only dependency property, specified by the DependencyPropertyKey identifier of the dependency property. (Inherited from DependencyObject.) |
![]() | ShouldSerializeProperty(DependencyProperty^) | Returns a value that indicates whether serialization processes should serialize the value for the provided dependency property.(Inherited from DependencyObject.) |
![]() | ToString() | Returns the string that represents the media source.(Overrides Object::ToString().) |
![]() | VerifyAccess() | Enforces that the calling thread has access to this DispatcherObject.(Inherited from DispatcherObject.) |
![]() | WritePostscript() | |
![]() | WritePreamble() |
| Name | Description | |
|---|---|---|
![]() ![]() | SourceProperty | Identifies the Source dependency property. |
| Name | Description | |
|---|---|---|
![]() | Changed | |
![]() | Completed | Occurs when this timeline has completely finished playing: it will no longer enter its active period. (Inherited from Timeline.) |
![]() | CurrentGlobalSpeedInvalidated | Occurs when the rate at which time progresses for the timeline's clock changes.(Inherited from Timeline.) |
![]() | CurrentStateInvalidated | Occurs when the CurrentState property of the timeline's Clock is updated.(Inherited from Timeline.) |
![]() | CurrentTimeInvalidated | Occurs when the CurrentTime property of the timeline's Clock is updated.(Inherited from Timeline.) |
![]() | RemoveRequested | Occurs when the clock created for this timeline or one of its parent timelines is removed.(Inherited from Timeline.) |
| Name | Description | |
|---|---|---|
![]() ![]() | IUriContext::BaseUri | Gets or sets the base URI of the current application context. |
MediaTimeline is a Timeline object which provides control over media timing in the same way that animation timeline objects control animations. For example, a MediaTimeline has associated Duration and BeginTime properties can be used to specify when media begins and how long it plays. See Animation Overview for more information on animation timelines.
There are two ways to associate a Timeline to a MediaElement using a MediaTimeline.
Inside of a Storyboard, when a MediaTimeline is targets a MediaElement, a MediaClock will be created and assigned to the MediaElement’s associated player. See How to: Control a MediaElement by Using a Storyboard for an example;
By explicitly creating a MediaClock from a MediaTimeline and assigning it to a MediaElement.
If the Duration of the MediaTimeline is set to Automatic (default), the duration of MediaTimeline is the natural duration of the media source. To find the natural duration of the media source programmatically, query the NaturalDuration property of the MediaElement.
Available since 3.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.







