Improved handling of AHK_ATTACH_DEBUGGER message.

It must now be sent or posted to the script's main window (not a GUI),
  and should work even if a message loop other than the one in
  MsgSleep() is running. (For instance, while waiting for MsgBox.)

source/application.cpp

@@ -1424,31 +1424,6 @@ bool MsgSleep(int aSleepDuration, MessageMode aMode)
 			// external ever explicitly posts a WM_QUIT to our thread's queue:
 			g_script.ExitApp(EXIT_WM_QUIT);
 			continue; // Since ExitApp() won't necessarily exit.
-
-#ifdef CONFIG_DEBUGGER
-		default:
-			static UINT sAttachDebuggerMessage = RegisterWindowMessage(_T("AHK_ATTACH_DEBUGGER"));
-			if (msg.message == sAttachDebuggerMessage && !g_Debugger.IsConnected())
-			{
-				char dbg_host[16] = "localhost"; // IPv4 max string len
-				char dbg_port[6] = "9000";
-
-				if (msg.wParam)
-				{	// Convert 32-bit address to string for Debugger::Connect().
-					in_addr addr;
-					addr.S_un.S_addr = (ULONG)msg.wParam;
-					char *tmp = inet_ntoa(addr);
-					if (tmp)
-						strcpy(dbg_host, tmp);
-				}
-				if (msg.lParam)
-					// Convert 16-bit port number to string for Debugger::Connect().
-					_itoa(LOWORD(msg.lParam), dbg_port, 10);
-
-				if (g_Debugger.Connect(dbg_host, dbg_port) == DEBUGGER_E_OK)
-					g_Debugger.ProcessCommands();
-			}
-#endif
 		} // switch()
 break_out_of_main_switch:
 

source/script2.cpp

@@ -5513,6 +5513,30 @@ LRESULT CALLBACK MainWindowProc(HWND hWnd, UINT iMsg, WPARAM wParam, LPARAM lPar
 			g_script.UpdateTrayIcon(true);  // Force the icon into the correct pause, suspend, or mIconFrozen state.
 			// And now pass this iMsg on to DefWindowProc() in case it does anything with it.
 		}
+
+#ifdef CONFIG_DEBUGGER
+		static UINT sAttachDebuggerMessage = RegisterWindowMessage(_T("AHK_ATTACH_DEBUGGER"));
+		if (iMsg == sAttachDebuggerMessage && !g_Debugger.IsConnected())
+		{
+			char dbg_host[16] = "localhost"; // IPv4 max string len
+			char dbg_port[6] = "9000";
+
+			if (wParam)
+			{	// Convert 32-bit address to string for Debugger::Connect().
+				in_addr addr;
+				addr.S_un.S_addr = (ULONG)wParam;
+				char *tmp = inet_ntoa(addr);
+				if (tmp)
+					strcpy(dbg_host, tmp);
+			}
+			if (lParam)
+				// Convert 16-bit port number to string for Debugger::Connect().
+				_itoa(LOWORD(lParam), dbg_port, 10);
+
+			if (g_Debugger.Connect(dbg_host, dbg_port) == DEBUGGER_E_OK)
+				g_Debugger.ProcessCommands();
+		}
+#endif
 
 	} // switch()