More reverse engineering of stateFlags

akorb · Jun 11, 2020 · aafab99 · aafab99
1 parent 1179fbf
commit aafab99
Showing 1 changed file with 18 additions and 3 deletions.
diff --git a/SteamShutdown/App.cs b/SteamShutdown/App.cs
@@ -16,9 +16,24 @@ public class App
         /// </summary>
         public static bool CheckDownloading(int appState)
         {
-            // The second bit defines if anything for the app needs to be downloaded
-            // Doesn't matter if queued, download running and so on
-            return IsBitSet(appState, 1);
+            return (IsBitSet(appState, 1) || IsBitSet(appState, 10)) && !IsBitSet(appState, 9);
+
+            /* Counting from zero and starting from the right
+             * Bit 1 indicates if a download is running
+             * Bit 2 indicates if a game is installed
+             * Bit 9 indicates if the download has been stopped by the user. The download will not happen, so don't wait for it.
+             * Bit 10 (or maybe Bit 5) indicates if a DLC is downloaded for a game
+             * 
+             * All known stateFlags while a download is running so far:
+             * 00000000110
+             * 10000000010
+             * 10000010010
+             * 10000100110
+             * 10000000110
+             * 10000010100 Bit 1 not set, but Bit 5 and Bit 10. Happens if downloading a DLC for an already downloaded game.
+             *             Because for a very short time after starting the download for this DLC the stateFlags becomes 20 = 00000010100
+             *             I think Bit 5 indicates if "something" is happening with a DLC and Bit 10 indicates if it is downloading.
+             */
         }
 
         public override string ToString()