Add XIGetSelectedEvents request and reply.

Counterpart to XISelectEvents, used to retrieve event masks from the server.

2 files changed, 51 insertions, 1 deletions

diff --git a/XI2proto.h b/XI2proto.h
index 8ca8f8b..331b831 100644
--- a/XI2proto.h
+++ b/XI2proto.h
@@ -98,10 +98,11 @@
 #define X_XIChangeProperty              57
 #define X_XIDeleteProperty              58
 #define X_XIGetProperty                 59
+#define X_XIGetSelectedEvents           60
 /*@}*/
 
 /** Number of XI requests */
-#define XI2REQUESTS (X_XIGetProperty - X_XIQueryPointer + 1)
+#define XI2REQUESTS (X_XIGetSelectedEvents - X_XIQueryPointer + 1)
 /** Number of XI2 events */
 #define XI2EVENTS   (XI_LASTEVENT + 1)
 
@@ -326,6 +327,33 @@ typedef struct {
 } xXISelectEventsReq;
 #define sz_xXISelectEventsReq                  12
 
+/**
+ * @struct xXIGetSelectedEventsReq
+ * Query for selected events on a given window.
+ */
+typedef struct {
+    uint8_t     reqType;                /**< Input extension major code */
+    uint8_t     ReqType;                /**< Always ::X_XIGetSelectedEvents */
+    uint16_t    length;                 /**< Length in 4 byte units */
+    Window      window;
+} xXIGetSelectedEventsReq;
+#define sz_xXIGetSelectedEventsReq              8
+
+typedef struct {
+    uint8_t     repType;                /**< Input extension major opcode */
+    uint8_t     RepType;                /**< Always ::X_XIGetSelectedEvents */
+    uint16_t    sequenceNumber;
+    uint32_t    length;
+    uint16_t    num_masks;              /**< Number of xXIEventMask structs
+                                             trailing the reply */
+    uint16_t    pad0;
+    uint32_t    pad1;
+    uint32_t    pad2;
+    uint32_t    pad3;
+    uint32_t    pad4;
+    uint32_t    pad5;
+} xXIGetSelectedEventsReply;
+#define sz_xXIGetSelectedEventsReply            32
 
 /**
  * @struct xXIQueryPointerReq
diff --git a/XI2proto.txt b/XI2proto.txt
index 3122387..ef6c9e5 100644
--- a/XI2proto.txt
+++ b/XI2proto.txt
@@ -368,6 +368,28 @@ XI2. Clients should ignore this data.
     If 'mask_len' is 0, the event mask for the given device is cleared.
 
     ┌───
+        XIGetSelectedEvents
+            window:         Window
+            ▶
+            num_masks:      CARD16
+            masks:          LISTofEVENTMASK
+    └───
+
+
+    window
+        The window to select the events on.
+    num_masks
+        Number of items in mask.
+    masks
+        Selected event masks by this client.
+
+    Masks are returned on a per-device basis, with masks for 'AllDevices' and
+    'AllMasterDevices' returned separately.
+
+    If 'num_masks' is 0, no events have been selected by this client on the
+    given window.
+
+    ┌───
         XIQueryPointer
             window:         Window
             deviceid:       DEVICEID