| Namespace | Windows.Devices.Midi2.CapabilityInquiry |
|---|---|
| Type Name | MidiPropertySubscriptionUpdatedEventArgs |
| Type | WinRT Runtime Class |
| IDL | MidiPropertySubscriptionUpdatedEventArgs.idl |
Raised on MidiCapabilityInquirySession when a device sends an update for a subscription this session holds. The reply the specification requires has already been sent by the time this is raised, so you don’t need to answer.
Command says what the device did:
full carries the whole resource. Most devices send this.partial carries only what changed, in the form the specification defines for a partial update.notify only says that something changed. Ask for the resource yourself if you need the new value.end means the device dropped the subscription. IsSubscriptionEnded is true, and the subscription is no longer active.A device can end a subscription at any time, so handle end instead of assuming a subscription lasts as long as the session. Subscribe again if you still need the resource.
| Property | Description |
|---|---|
Subscription |
The subscription this update belongs to |
Command |
What the device did: full, partial, notify, or end |
IsSubscriptionEnded |
True when the device ended the subscription |
Update |
The new data, if the update had any, as a MidiPropertyExchangeResponse |
Windows MIDI Services is an open source project with all source available on GitHub. We have a great community on Discord as well. Between GitHub and Discord, you should find the information you are looking for.
