# nativeUiHostEventRecord

A native ui host event record record carrying sequence, timestampMicroseconds, correlationId, category, subject, and related state.

Last updated: 2026-09-09

Package: host.ui_services | Status: source-declared

Tags: cpu, host, host.ui_services, method, source-example, thing, ui_services, yeho

Define host text, editing, clipboard, and accessibility service contracts.

```yh
external thing nativeUiHostEventRecord
```

- int sequence: Stores sequence as int.
- int timestampMicroseconds: Stores timestamp microseconds as int.
- int correlationId: Stores correlation id as int.
- text category: Stores category as text.
- text subject: Stores subject as text.
- text state: Stores state as text.
- text detail: Stores detail as text.
- nativeUiHostEventRecord(int sequence, int timestampMicroseconds, int correlationId, text category, text subject, text state, text detail): Native ui host event record.
- Describe() returns text: Describe.

## Use nativeUiHostEventRecord

A complete small caller. Values are illustrative; check the returned result and package requirements before connecting live resources.

Verification: type checked

```yh
using host.ui_services

// Define host text, editing, clipboard, and accessibility service contracts.
nativeUiHostEventRecord sample = nativeUiHostEventRecord(1, 1, 1, "category", "subject", "state", "detail")
Console.Log(Text.From(sample.sequence))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.host_ui_services__nativeuihosteventrecord"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "host.ui_services"
version = "0.1.0"
path = "../../../yeho/packages/host/ui_services"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/host.ui_services--nativeUiHostEventRecord/usage --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


## nativeUiHostEventRecord.Describe

A complete caller for this public method. Sample inputs are illustrative; native resources require their owning lifecycle.

Verification: type checked

```yh
using host.ui_services

// Describe.
nativeUiHostEventRecord instance = nativeUiHostEventRecord(1, 1, 1, "category", "subject", "state", "detail")
text result = instance.Describe()
Console.Log(Text.From(result))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.host_ui_services__nativeuihosteventrecord"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "host.ui_services"
version = "0.1.0"
path = "../../../yeho/packages/host/ui_services"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/host.ui_services--nativeUiHostEventRecord/method-Describe-8 --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


Package presence and a declaration do not establish support on every host. Host services need their platform and lifecycle setup.

Source: yeho/packages/host/ui_services/00-contracts.yh

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