# nativeWindowEvent

A native window event record carrying sequence, windowId, kind, detail, timestampMicroseconds.

Last updated: 2026-09-09

Package: window.multi | Status: source-declared

Tags: cpu, method, multi, source-example, thing, window, window.multi, yeho

Describe multiple windows, input events, lifecycle, and capabilities with typed records.

```yh
external thing nativeWindowEvent
```

- int sequence: Stores sequence as int.
- text windowId: Stores window id as text.
- text kind: Stores kind as text.
- text detail: Stores detail as text.
- int timestampMicroseconds: Stores timestamp microseconds as int.
- nativeWindowEvent(int sequence, text windowId, text kind, text detail, int timestampMicroseconds): Native window event.
- Describe() returns text: Describe.

## Use nativeWindowEvent

A complete small caller. Values are illustrative; check the returned result and package requirements before connecting live resources.

Verification: type checked

```yh
using window.multi

// Describe multiple windows, input events, lifecycle, and capabilities with typed records.
nativeWindowEvent sample = nativeWindowEvent(1, "window Id", "kind", "detail", 1)
Console.Log(Text.From(sample.sequence))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.window_multi__nativewindowevent"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "window.multi"
version = "0.1.0"
path = "../../../yeho/packages/window/multi"

```

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/window.multi--nativeWindowEvent/usage --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


## nativeWindowEvent.Describe

A complete caller for this public method. Sample inputs are illustrative; native resources require their owning lifecycle.

Verification: type checked

```yh
using window.multi

// Describe.
nativeWindowEvent instance = nativeWindowEvent(1, "window Id", "kind", "detail", 1)
text result = instance.Describe()
Console.Log(Text.From(result))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.window_multi__nativewindowevent"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "window.multi"
version = "0.1.0"
path = "../../../yeho/packages/window/multi"

```

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/window.multi--nativeWindowEvent/method-Describe-6 --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/window/multi/00-contracts.yh

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