LampArrayBitmapEffect.BitmapRequested Event

  • Reference

Definition

Namespace:
Windows.Devices.Lights.Effects
Edit

Event triggered by the system to indicate a new image should be supplied to the effect.

// Register
event_token BitmapRequested(TypedEventHandler<LampArrayBitmapEffect, LampArrayBitmapRequestedEventArgs const&> const& handler) const;

// Revoke with event_token
void BitmapRequested(event_token const* cookie) const;

// Revoke with event_revoker
LampArrayBitmapEffect::BitmapRequested_revoker BitmapRequested(auto_revoke_t, TypedEventHandler<LampArrayBitmapEffect, LampArrayBitmapRequestedEventArgs const&> const& handler) const;
public event TypedEventHandler<LampArrayBitmapEffect,LampArrayBitmapRequestedEventArgs> BitmapRequested;
function onBitmapRequested(eventArgs) { /* Your code */ }
lampArrayBitmapEffect.addEventListener("bitmaprequested", onBitmapRequested);
lampArrayBitmapEffect.removeEventListener("bitmaprequested", onBitmapRequested);
- or -
lampArrayBitmapEffect.onbitmaprequested = onBitmapRequested;
Public Custom Event BitmapRequested As TypedEventHandler(Of LampArrayBitmapEffect, LampArrayBitmapRequestedEventArgs)

Event Type

TypedEventHandler<LampArrayBitmapEffect,LampArrayBitmapRequestedEventArgs>

Examples

LampArray sample

Demonstrates how to control RGB lighting of peripheral devices using the Windows.Devices.Lights and Windows.Devices.Lights.Effects APIs.

AutoRGB Sample

Demonstrates how to extract a single, representative color from a desktop screen and use it to illuminate LED lamps on a connected RGB device.

Remarks

  • Once a playlist starts the effect, it will immediately trigger the BitmapRequested event.
  • If a playlist pauses the effect, it will temporarily stop further event triggers. Will resume when the playlist is started again.
  • If a playlist stops the effect, no further event triggers will occur until the playlist starts again.
  • The event will trigger a final time when the Duration has expired. This should be used by the caller to set any final state before the effect completes.

Behavior of multiple handlers registered with this event is undefined.

Applies to

See also