Unverified50% confidenceFactExact time
bigarrow uses a special macOS window that is borderless, has a transparent background, and does not receive mouse events (click-through) to draw arrows, so the arrow does not block normal click operations when it appears.
1
Sources
50%
Confidence
Long-term
Relevance
10/13/2026
First Seen
Sources
Related Entities
Related Claims
Unverifiedbigarrow only supports Mac and relies on macOS-specific screen overlay and coordinate tracking APIs; there is currently no Windows or Linux version.71% similarUnverifiedOn macOS, real-time screen annotation is typically implemented by creating a transparent NSWindow with a layer level higher than all normal windows and dynamically toggling mouse event pass-through.65% similarUnverifiedNotch-based tools use macOS's NSWindow API to create borderless floating windows at the notch position at the top of the screen, triggering functions in conjunction with mouse hover or drag-and-drop events.64% similarUnverifiedScreenMark exists as a macOS menu bar app, does not occupy a standalone window, and does not appear in the Dock or the App Switcher.64% similarUnverifiedmacOS global shortcut monitoring relies on Core Graphics event listening API (CGEventTap) or the higher-level NSEvent global monitor, which can capture keyboard events when the application is not in the foreground64% similar
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