/** Requests the current workspaces from i3 */
#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
*
*/
+/** Command reply type */
+#define I3_IPC_REPLY_TYPE_COMMAND 0
+
/** Workspaces reply type */
#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.
+ *
+ */
+#define I3_IPC_EVENT_MASK (1 << 31)
+
+/* The workspace event will be triggered upon changes in the workspace list */
+#define I3_IPC_EVENT_WORKSPACE (I3_IPC_EVENT_MASK | 0)
+
+/* The output event will be triggered upon changes in the output list */
+#define I3_IPC_EVENT_OUTPUT (I3_IPC_EVENT_MASK | 1)
+
#endif