# nativeWindowCapabilitySet

A native window capability set record carrying schema, schemaVersion, provider, maximumWindows, ownership, and related state.

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 nativeWindowCapabilitySet
```

- text schema: Stores schema as text.
- int schemaVersion: Stores schema version as int.
- text provider: Stores provider as text.
- int maximumWindows: Stores maximum windows as int.
- bool ownership: Stores ownership as bool.
- bool focus: Stores focus as bool.
- bool normalizedKeyboard: Stores normalized keyboard as bool.
- bool normalizedPointer: Stores normalized pointer as bool.
- bool redraw: Stores redraw as bool.
- bool closeCancellation: Stores close cancellation as bool.
- bool rawHandlesExposed: Stores raw handles exposed as bool.
- nativeWindowCapabilitySet(text provider, int maximumWindows): Native window capability set.
- Describe() returns text: Describe.

## Use nativeWindowCapabilitySet

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.
nativeWindowCapabilitySet sample = nativeWindowCapabilitySet("provider", 1)
Console.Log(Text.From(sample.schema))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.window_multi__nativewindowcapabilityset"
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--nativeWindowCapabilitySet/usage --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


## nativeWindowCapabilitySet.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.
nativeWindowCapabilitySet instance = nativeWindowCapabilitySet("provider", 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__nativewindowcapabilityset"
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--nativeWindowCapabilitySet/method-Describe-12 --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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