| Transport | RFC 6455 on Winsock, SHA-1 from CNG; text = JSON, binary = tap; thread per connection (protocol) |
| Keys, text, pointer | queued + PostMessage(hwnd, WM_LHI); subclassed WndProc (game thread) sets the virtual state, calls the game's with WM_KEYDOWN/WM_KEYUP, WM_CHAR, WM_MOUSEMOVE + virtual cursor (hooked GetCursorPos), handled as real input (MainGameCore::WndProc_PC::onKeyboardAction → HIDControllerGameCoreDesktop::onKeyDown). Replies after dispatch |
| Buttons, wheel, camera | GameInput v2 (GameInputRedist.dll) ignores window messages: hooked IGameInputReading::GetMouseState, GetKeyCount, GetKeyState; GetCurrentReading gets a virtual reading before the device reports |
| No foreground | launch: CreateProcessW + SW_SHOWNOACTIVATE; hooked ShowWindow, SetWindowPos, SetActiveWindow, BringWindowToTop, SetForegroundWindow; bottom of Z order; WM_ACTIVATEAPP(0)/WM_KILLFOCUS/WM_ACTIVATE(inactive) swallowed (no pause). Hooks in load() (window exists before enable()). Fake "focus gained" skips default WM_ACTIVATE (hooked DefWindowProcW). BEDD_RETURN_FOCUS: window to refocus if the game activates while starting |
| Real input blocked | WM_KEY*/WM_MOUSE*/WM_INPUT/WM_POINTER* swallowed; virtual ClipCursor (no-op), SetCursorPos, GetCursorPos, GetPhysicalCursorPos, GetAsyncKeyState, GetKeyState, GetKeyboardState, GetForegroundWindow/GetActiveWindow/GetFocus (game window), GetRawInputData/GetRawInputBuffer (dropped) |
| Screenshot | PrintWindow(PW_RENDERFULLCONTENT) (covered/off screen OK), WIC |
| Clones | The LeviLauncher instance (found with LeviLauncher.exe instance list --json) is never written to. %LOCALAPPDATA%\BeDD\instances\<gameVersion>-<slot>: hardlinks (copies across volumes), own mods\, worlds, options; changed files replaced, not edited. Loader resolves from the exe folder (keep the exe name): data in its Minecraft Bedrock |
| Manager | BeDD.exe, one per logon session: DWM thumbnails; launch starts it outside the caller's tree; attaches via discovery files (manager); closing it sends close. Game window: off-screen tool window from creation (hooked CreateWindowExW: no pump before enable()), SetWindowPos moves dropped, a watcher restores |
