Each MFD carries its 4+4 physical button strip and the radar its 6+6
amber side columns, exactly as mounted on the pod (RP412 MFDSplitView
geometry + the shared Tesla-board RIO addresses; anchors 0x2F/0x27/0x37/
0x0F/0x07 for the five MFDs, 0x10/0x18 for the radar).
- L4VB16.cpp: BTBuildCockpitButtons computes the button rects from the
same cockpit surface layout (strips toward the screen interior to stay
on-canvas); BTDrawCockpitButtons draws them as coloured quads, lit from
PadRIO::GetLampState (bright red/amber) or dim; state-block wrapped so
the button pass doesn't leak render state into the next world frame.
BTCockpitButtonAt hit-tests; BTPadRIOScreenButton bridges to PadRIO.
- btl4main.cpp WndProc: WM_LBUTTONDOWN/UP hit-test the buttons and inject
press/release into PadRIO (SetCapture so the release always fires).
Verified: the button banks render around all six surfaces in the
L4MFDSPLIT cockpit; mouse plumbing wired through the already-active
PadRIO screen-button path (Phase 2).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
CydandClaude Fable 5
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