The wheel did nothing over action buttons, unit frames or the minimap. benilla gave the notch to the topmost wheel frame or its parents, and zoomed only off the UI. A sideways scroll also reset the idle timer.
In 1.12.1, `0x7664f0` walks the wheel list under the cursor, strata then level then age, and the first visible frame with `OnMouseWheel` consumes it (`0x76c180`). The world frame's slot runs the zoom binding (`0x483d20`), and an unbound chord passes the notch on. Only `WM_MOUSEWHEEL` stamps idle (`0x76651f`).
Now the wheel walks once, and the world takes what is left. Scroll frames are no longer born wheel-enabled (`0x786a40`). On macOS a Shift+wheel, which the system turns sideways, counts as vertical again.
Tests: no-handler frames reach the zoom, handlers consume, off-cursor parents get nothing, a sideways scroll leaves idle alone.
Fixes#176Fixes#224🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Sam Sung
740bd27a0a