General: Export variable that tells if desktop is in foreground

ExplorerPatcher/dllmain.c

@@ -187,7 +187,7 @@ DWORD S_Icon_Dark_TaskView = 0;
 void* P_Icon_Dark_Widgets = NULL;
 DWORD S_Icon_Dark_Widgets = 0;
 
-
+BOOL g_bIsDesktopRaised = FALSE;
 
 #include "utility.h"
 #include "resource.h"
@@ -2416,6 +2416,10 @@ INT64 Shell_TrayWndSubclassProc(
             DestroyMenu(hMenu);
         }
     }
+    else if (uMsg == 1368)
+    {
+        g_bIsDesktopRaised = (lParam & 1) == 0;
+    }
     return DefSubclassProc(hWnd, uMsg, wParam, lParam);
 }
 #endif