[NO MERGE] Add flicker-free UI mutation APIs#14735

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KlausLoeffelmann wants to merge 18 commits into

dotnet:feature/11.0from

KlausLoeffelmann:Net11Api_03_ImproveControlRendering

Commits on Jul 18, 2026

Centralize feature prompt documents
KlausLoeffelmann
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Add the prompts for the new Suspend-Positioning-Painting-Form-Apearance API.
KlausLoeffelmann
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Add flicker-free mutation API proposal prompt

KlausLoeffelmann
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Copilot
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Add flicker-free UI mutation APIs

KlausLoeffelmann
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Copilot
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Add tests for flicker-free mutation APIs

KlausLoeffelmann
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Copilot
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Remove DeferLocationChange; make suspend-mutation hooks explicit-interface

KlausLoeffelmann
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Rename FormAppearanceMode to FormRevealMode with Inherit ambient sentinel

KlausLoeffelmann
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Copilot
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Wire FormRevealMode into the VB Application Framework

KlausLoeffelmann
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Copilot
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Fix FormRevealMode public API tracking
KlausLoeffelmann
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Preserve painting suspension across handles
KlausLoeffelmann
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Add layout-aware painting suspension

KlausLoeffelmann
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Copilot
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Commits on Jul 21, 2026

Fix FormRevealMode.Deferred cloak never engaging

KlausLoeffelmann
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Copilot
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Commits on Jul 23, 2026