NFS Porsche: Clear the keyboard input buffer on WM_KILLFOCUS

source/SilentPatchNFS90s.cpp

@@ -364,6 +364,9 @@ namespace TextPasteSupport
  return orgWndProc(hWnd, Msg, wParam, lParam);
  }
 
+ // Used only by NFS Porsche
+ static bool* gKeyboardBuffer;
+
  LRESULT WINAPI WindowProc_PasteSupport(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
  {
  if (Msg == WM_CHAR)
@@ -383,6 +386,11 @@ namespace TextPasteSupport
  return 0;
  }
  }
+ // NFS Porsche only
+ else if (Msg == WM_KILLFOCUS && gKeyboardBuffer != nullptr)
+ {
+ memset(gKeyboardBuffer, 0, 128);
+ }
  return orgWndProc(hWnd, Msg, wParam, lParam);
  }
 
@@ -813,6 +821,16 @@ void OnInitializeHook()
  auto register_class = get_pattern<decltype(RegisterClassA)**>("89 44 24 50 FF 15 ? ? ? ? 66 85 C0", 4 + 2);
 
  pOrgRegisterClassA = std::exchange(*register_class, &pRegisterClassA_PasteSupport);
+
+ // NFS Porsche: Clear the keyboard input buffer on WM_KILLFOCUS
+ // Fixes an issue potentially introduced by Modern Patch where the keyboard buffer doesn't get cleared on Alt+Tab
+ try
+ {
+ auto keyboard_buffer = *get_pattern<bool*>("68 ? ? ? ? E8 ? ? ? ? 8B 54 24 28 8B 44 24 20", 1);
+
+ gKeyboardBuffer = keyboard_buffer;
+ }
+ TXN_CATCH();
  }
  TXN_CATCH();