ConstReadonlyAllowWhenBlockedByActiveItem: 128Ignore blocking by another active item.
ReadonlyAllowWhenBlockedByPopup: 32Ignore blocking by a non-modal popup.
ReadonlyAllowWhenDisabled: 1024Item queries: allow disabled items to count as hovered.
ReadonlyAllowWhenOverlapped: 768Item queries: accept overlap by either items or windows.
ReadonlyAllowWhenOverlappedByItem: 256Item queries: accept overlap by another item in AllowOverlap mode.
ReadonlyAllowWhenOverlappedByWindow: 512Item queries: accept overlap by another window.
ReadonlyAnyWindow: 4Window queries: test any ImGui window.
ReadonlyChildWindows: 1Window queries: include hovered child windows.
ReadonlyDelayNone: 16384Item queries: report hover immediately, without a hover delay.
ReadonlyDelayNormal: 65536Item queries: wait HoverDelayNormal, shared across items. Add Stationary to also require a pause in mouse movement.
ReadonlyDelayShort: 32768Item queries: wait HoverDelayShort, shared across items. Add Stationary to also require a pause in mouse movement.
ReadonlyForTooltip: 4096Use the style's tooltip hover policy for mouse or navigation.
ReadonlyNoNavOverride: 2048Item queries: use mouse position even during keyboard/gamepad navigation.
ReadonlyNone: 0Require normal, unobstructed hover over the item or window.
ReadonlyNoPopupHierarchy: 8Window queries: do not treat popup emitters as parents.
ReadonlyNoSharedDelay: 131072Item queries: restart the delay instead of sharing it between items.
ReadonlyRectOnly: 928Ignore popup/active-item blocking and item/window overlap. Does not enable disabled items or bypass modal blocking.
ReadonlyRootAndChildWindows: 3Window queries: test the root and all its children.
ReadonlyRootWindow: 2Window queries: start from the topmost parent.
ReadonlyStationary: 8192Require HoverStationaryDelay once; then movement on the same target is OK.
Hover-query scope, obstruction exceptions and timing. Use IO capture flags, not hover queries, to route raw mouse input.