[PATCH inputproto 1/3] Unbreak protocol ABI for XIAllowEvents.

[Peter Hutterer]

XIAllowEvents was extended with touchid and grab_window in
2ea2f99f4fe1dcd3b8e539ca41c482fc40a0533d. This extended the size of the
request from 12 to 20 but also broke the ABI. Older server match the request
size exactly, so compiling libXi 1.5 against inputproto 2.2 and then running
it against a pre-XI 2.2 server causes a BadLength for any XIAllowEvent
request.

Change the new fields from actual fields to simple comments and let the
library/server deal with the extra data.

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
 XI2proto.h |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/XI2proto.h b/XI2proto.h
index 93d7e32..9039fe7 100644
--- a/XI2proto.h
+++ b/XI2proto.h
@@ -647,10 +647,10 @@ typedef struct {
     uint16_t    deviceid;
     uint8_t     mode;
     uint8_t     pad;
-    uint32_t    touchid;                /**< Since XI 2.2 */
-    Window      grab_window;            /**< Since XI 2.2 */
+    /* uint32_t    touchid;            Since XI 2.2 */
+    /* Window      grab_window;        Since XI 2.2 */
 } xXIAllowEventsReq;
-#define sz_xXIAllowEventsReq                   20 /**< Was 12 before XI 2.2 */
+#define sz_xXIAllowEventsReq                   12 /**< 20 in XI 2.2 */
 
 
 /**
-- 
1.7.7.5