Eliminate most of the popup menus as per Henrik's request, and fix a minor bug with AT3+ in NewUI.

UI/GameSettingsScreen.cpp

@@ -38,7 +38,10 @@
 
 #ifdef _WIN32
 namespace MainWindow {
-	enum { WM_USER_LOG_STATUS_CHANGED = WM_USER + 200 };
+	enum { 
+		WM_USER_LOG_STATUS_CHANGED = WM_USER + 200,
+		WM_USER_ATRAC_STATUS_CHANGED = WM_USER + 300,
+	};
 	extern HWND hwndMain;
 }
 #endif
@@ -345,6 +348,9 @@ UI::EventReturn GameSettingsScreen::OnBack(UI::EventParams &e) {
 		else Atrac3plus_Decoder::Shutdown();
 	}
 	
+#ifdef _WIN32
+	PostMessage(MainWindow::hwndMain, MainWindow::WM_USER_ATRAC_STATUS_CHANGED, 0, 0);
+#endif
 
 	return UI::EVENT_DONE;
 }

Windows/WndMainWindow.cpp

@@ -1202,6 +1202,13 @@ namespace MainWindow
 			}
 			break;
 
+		case WM_USER_ATRAC_STATUS_CHANGED:
+			if(g_Config.bEnableAtrac3plus && Atrac3plus_Decoder::IsInstalled())
+				EnableMenuItem(menu, ID_EMULATION_ATRAC3_SOUND, MF_ENABLED);
+			else
+				EnableMenuItem(menu, ID_EMULATION_ATRAC3_SOUND, MF_GRAYED);
+			break;
+
 		case WM_MENUSELECT:
 			// Unfortunately, accelerate keys (hotkeys) shares the same enabled/disabled states
 			// with corresponding menu items.

Windows/WndMainWindow.h

@@ -10,6 +10,7 @@ namespace MainWindow
 	enum {
 		WM_USER_SAVESTATE_FINISH = WM_USER + 100,
 		WM_USER_LOG_STATUS_CHANGED = WM_USER + 200,
+		WM_USER_ATRAC_STATUS_CHANGED = WM_USER + 300,
 	};
 
 	enum {