Reference map for interactive on-screen selection: window, region, point, or
color picking.
Drawing persistent annotations belongs to osd/screen-overlay.md.
IOsdSelectionService is the user-facing picker.PickWindow() returns IWindowHandle.IOsdSelectionService
PickWindow()PickRegion(IWindowHandle targetWindow = default)PickPoint(IWindowHandle targetWindow = default)PickColor(IWindowHandle targetWindow = default)OsdRegionSelectionResult - selected region, transform matrices, and windowOsdRegionTransformationMatrices - ScreenToWindow and WindowToScreen.OsdPointSelectionResult - selected point.OsdColorSelectionResult - sampled color.IOsdSelectionService for user-driven selection.IWindowHandle from PickWindow() over raw handles.windows-subsystems/window-handles.md for handle conversion/matching.osd/screen-overlay.md for drawing persistent overlays.IOsdSelectionService, PickWindow, PickRegion, PickPoint,PickColor, OsdRegionSelectionResult, WindowUnderCursor,OsdRegionTransformationMatrices.osd/screen-overlay.mdwindows-subsystems/window-handles.mdcomputer-vision/images.mdmemory/processes.md