frontend.yui · thing · Updated 2026-09-09

yuiPersistentCanvasExecutionV1

A yui persistent canvas execution v1 record carrying rendered, presented, damageCount, replayedCommandCount, redrawBefore, and related state.

cpufrontendfrontend.yuimethodsource-examplethingyehoyui

Turn YUI models into a working frontend and its rendering/input adapters.

external thing yuiPersistentCanvasExecutionV1

Status: source-declared

Fields and methods (12)

bool rendered: Stores rendered as bool.
bool presented: Stores presented as bool.
int damageCount: Stores damage count as int.
int replayedCommandCount: Stores replayed command count as int.
int redrawBefore: Stores redraw before as int.
int redrawAfter: Stores redraw after as int.
int presentBefore: Stores present before as int.
int presentAfter: Stores present after as int.
text diagnostic: Stores diagnostic as text.
yuiPersistentCanvasExecutionV1(text diagnostic): Yui persistent canvas execution v1.
RedrawDelta() returns int: Redraw delta. Complete example
PresentDelta() returns int: Present delta. Complete example

Use yuiPersistentCanvasExecutionV1

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

cpu · source-example · type checked

using frontend.yui

// Turn YUI models into a working frontend and its rendering/input adapters.
yuiPersistentCanvasExecutionV1 sample = yuiPersistentCanvasExecutionV1("diagnostic")
Console.Log(Text.From(sample.rendered))

project.mech

manifestVersion = "2"
package = "api.example.frontend_yui__yuipersistentcanvasexecutionv1"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "frontend.yui"
version = "0.2.0"
path = "../../../yeho/packages/frontend/yui"

[[dependencies]]
package = "graphics.canvas"
version = "0.1.0"
path = "../../../yeho/packages/graphics/canvas"

[[dependencies]]
package = "graphics.image"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image"

[[dependencies]]
package = "graphics.image.processing"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image/processing"

[[dependencies]]
package = "graphics.text"
version = "0.1.0"
path = "../../../yeho/packages/graphics/text"

[[dependencies]]
package = "host.ui_services"
version = "0.1.0"
path = "../../../yeho/packages/host/ui_services"

[[dependencies]]
package = "input.text"
version = "0.1.0"
path = "../../../yeho/packages/input/text"

[[dependencies]]
package = "ui"
version = "0.2.0"
path = "../../../yeho/packages/ui"

yuiPersistentCanvasExecutionV1.RedrawDelta

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

cpu · method · source-example · type checked

using frontend.yui

// Redraw delta.
yuiPersistentCanvasExecutionV1 instance = yuiPersistentCanvasExecutionV1("diagnostic")
int result = instance.RedrawDelta()
Console.Log(Text.From(result))

project.mech

manifestVersion = "2"
package = "api.example.frontend_yui__yuipersistentcanvasexecutionv1"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "frontend.yui"
version = "0.2.0"
path = "../../../yeho/packages/frontend/yui"

[[dependencies]]
package = "graphics.canvas"
version = "0.1.0"
path = "../../../yeho/packages/graphics/canvas"

[[dependencies]]
package = "graphics.image"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image"

[[dependencies]]
package = "graphics.image.processing"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image/processing"

[[dependencies]]
package = "graphics.text"
version = "0.1.0"
path = "../../../yeho/packages/graphics/text"

[[dependencies]]
package = "host.ui_services"
version = "0.1.0"
path = "../../../yeho/packages/host/ui_services"

[[dependencies]]
package = "input.text"
version = "0.1.0"
path = "../../../yeho/packages/input/text"

[[dependencies]]
package = "ui"
version = "0.2.0"
path = "../../../yeho/packages/ui"

yuiPersistentCanvasExecutionV1.PresentDelta

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

cpu · method · source-example · type checked

using frontend.yui

// Present delta.
yuiPersistentCanvasExecutionV1 instance = yuiPersistentCanvasExecutionV1("diagnostic")
int result = instance.PresentDelta()
Console.Log(Text.From(result))

project.mech

manifestVersion = "2"
package = "api.example.frontend_yui__yuipersistentcanvasexecutionv1"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "frontend.yui"
version = "0.2.0"
path = "../../../yeho/packages/frontend/yui"

[[dependencies]]
package = "graphics.canvas"
version = "0.1.0"
path = "../../../yeho/packages/graphics/canvas"

[[dependencies]]
package = "graphics.image"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image"

[[dependencies]]
package = "graphics.image.processing"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image/processing"

[[dependencies]]
package = "graphics.text"
version = "0.1.0"
path = "../../../yeho/packages/graphics/text"

[[dependencies]]
package = "host.ui_services"
version = "0.1.0"
path = "../../../yeho/packages/host/ui_services"

[[dependencies]]
package = "input.text"
version = "0.1.0"
path = "../../../yeho/packages/input/text"

[[dependencies]]
package = "ui"
version = "0.2.0"
path = "../../../yeho/packages/ui"

Notes and source

Package presence and a declaration do not establish support on every host. Host services need their platform and lifecycle setup.

yeho/packages/frontend/yui/render-persistent_canvas.yh:56