#define I3_IPC_MESSAGE_TYPE_COMMAND 0
/** Requests the current workspaces from i3 */
-#define I3_IPC_MESSAGE_TYPE_GET_TREE 1
+#define I3_IPC_MESSAGE_TYPE_GET_WORKSPACES 1
+/** Subscribe to the specified events */
+#define I3_IPC_MESSAGE_TYPE_SUBSCRIBE 2
+
+/** Requests the current outputs from i3 */
+#define I3_IPC_MESSAGE_TYPE_GET_OUTPUTS 3
+
+/** Requests the tree layout from i3 */
+#define I3_IPC_MESSAGE_TYPE_GET_TREE 4
+
+/** Request the current defined marks from i3 */
+#define I3_IPC_MESSAGE_TYPE_GET_MARKS 5
/*
* Messages from i3 to clients
#define I3_IPC_REPLY_TYPE_COMMAND 0
/** Workspaces reply type */
-#define I3_IPC_REPLY_TYPE_TREE 1
+#define I3_IPC_REPLY_TYPE_WORKSPACES 1
+
+/** Subscription reply type */
+#define I3_IPC_REPLY_TYPE_SUBSCRIBE 2
+
+/** Outputs reply type */
+#define I3_IPC_REPLY_TYPE_OUTPUTS 3
+
+/** Tree reply type */
+#define I3_IPC_REPLY_TYPE_TREE 4
+
+/** Marks reply type*/
+#define I3_IPC_REPLY_TYPE_MARKS 5
/*
* Events from i3 to clients. Events have the first bit set high.