Update taskbar-scroll-actions.wh.cpp

[iMAboud]

Features:

• Software Dimming: Smoothly lowers brightness below the monitor's minimum hardware limits using software layers.
• Brightness OSD: Added a transparent, modern OSD that displays the current brightness percentage whenever it's adjusted.
• Fallback Support: Automatically falls back to software dimming if hardware brightness (DDC/CI or WMI) is unavailable.
• Configurable Settings: Both the software dimming feature and the OSD delay can be configured or toggled via settings.

Details:

Software Dimming Engine: Added threaded software dimming functionality (SetSoftwareDimBrightness) that intercepts AdjustBrightnessDdcCi. It tracks combined brightness states per physical monitor, clamping to minimum hardware levels (e.g., 0 DDC/CI) while scaling software overlays seamlessly down to -100.

WMI Fallback: Added graceful software dimming fallback logic in AdjustBrightnessThread when native hardware brightness is unavailable.

Brightness OSD: Implemented BrightnessOsdWndProc to draw a layered (WS_EX_LAYERED), transparent, un-activated window that renders text via GDI (DrawText). The OSD automatically hides via a configurable timer (BrightnessOsdTimerProc).
Thread Management: Instantiated and safely managed a new thread g_pSwDimThread in Wh_ModInit and Wh_ModUninit to handle software dimming message loops without blocking the main UI.

Settings Added: Exposed softwareDimming, brightnessOsd, and brightnessOsdDelay (default: 1500ms) to global settings.

[iMAboud]

Pushed an updated version to the previous update:

Features:

• Multi-Tray Compatibility: Improved the detection of the notification area to seamlessly support third-party multi-tray mods on secondary monitors.

• Modifier Key Requirement: Added an optional setting to require holding a specific modifier key (Ctrl, Shift, Alt, Win) to trigger scrolling actions.

• Monitor Selection: Added an option to assign specific scrolling actions exclusively to particular monitors (e.g., Primary only, Secondary only, or All).

Details:

Multi-Tray Bridge Union: Updated GetNotificationAreaRect to dynamically loop through all DesktopWindowContentBridge instances on secondary taskbars and compute their bounding union (UnionRect). This creates a single bounding box that correctly encompasses both the native clock and the extra multi-tray icons. The layout fallback calculation was also expanded from 50 to 150 pixels for broader compatibility.

Scroll Event Filtering: Integrated GetAsyncKeyState inside OnMouseWheel to evaluate the active state of configured modifier keys (VK_CONTROL, VK_SHIFT, VK_MENU, VK_LWIN) before executing any scroll commands, bypassing the action if the requirement isn't met.

Monitor Index Enumeration: Implemented a new GetMonitorIndexForMonitor helper utilizing EnumDisplayMonitors to map physical HMONITOR handles to user-configurable numerical indices. This allows OnMouseWheel to accurately restrict scroll events to the specific monitor index configured in the settings array.

[m417z]

The scope of the changes is larger than I initially thought. After considering it, I decided that it'd be better to have it submitted as a separate PR. Please update and reopen ramensoftware/windhawk-mods#4523 and I'll review it.