[0.84] fix: use IsPrimary() for touch pointer isPrimary instead of hardcoded id#16121
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acoates-ms merged 2 commits intoMay 12, 2026
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… id (microsoft#16099) * Create react-native-windows-4ad3ddaf-1358-4ff0-9971-38a7db68266c.json * fix: use IsPrimary() for touch pointer isPrimary instead of hardcoded ID check (#4) activeTouch.isPrimary was set via `pointerId == 1`, which only works for mouse (MOUSE_POINTER_ID == 1). Windows touch pointer IDs are OS-allocated and essentially never 1, so isPrimary was always false for touch input. This meant touch pointers never triggered onClick (gated behind isPrimary && button == 0) and reported incorrect isPrimary in PointerEvents sent to JS. Replace with pointerPoint.Properties().IsPrimary(), which reads the OS POINTER_FLAG_PRIMARY flag directly. This API is already used elsewhere in the codebase (SwitchComponentView, WindowsTextInputComponentView, Composition.Input). (The diagnostics are pre-existing clang noise from missing PCH/Windows headers — not related to this change.)
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acoates-ms
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May 12, 2026
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port over #16099
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