[PATCH 5/6] user32: Add discard_internal parameter to peek_message.

[Rémi Bernon]

This will allow us to discard internal messages without processing them.

Signed-off-by: Rémi Bernon 
---
 dlls/user32/message.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/dlls/user32/message.c b/dlls/user32/message.c
index 0f55f6ad1b3b..118522ea4722 100644
--- a/dlls/user32/message.c
+++ b/dlls/user32/message.c
@@ -2747,7 +2747,8 @@ static inline void call_sendmsg_callback( SENDASYNCPROC callback, HWND hwnd, UIN
  * available; -1 on error.
  * All pending sent messages are processed before returning.
  */
-static int peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags, UINT changed_mask )
+static int peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags,
+                         UINT changed_mask, BOOL discard_internal )
 {
     LRESULT result;
     struct user_thread_info *thread_info = get_user_thread_info();
@@ -2816,6 +2817,9 @@ static int peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags,
             continue;
         }

+        if (discard_internal && (info.msg.message & 0x80000000))
+            continue;
+
         TRACE( "got type %d msg %x (%s) hwnd %p wp %lx lp %lx\n",
                info.type, info.msg.message,
                (info.type == MSG_WINEVENT) ? "MSG_WINEVENT" : SPY_GetMsgName(info.msg.message, info.msg.hwnd),
@@ -2955,7 +2959,8 @@ static int peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags,
                 }
                 else
                     peek_message( msg, info.msg.hwnd, info.msg.message,
-                                  info.msg.message, flags | PM_REMOVE, changed_mask );
+                                  info.msg.message, flags | PM_REMOVE, changed_mask,
+                                  discard_internal );
                 continue;
             }
        if (info.msg.message >= WM_DDE_FIRST && info.msg.message <= WM_DDE_LAST)
@@ -2999,7 +3004,7 @@ static int peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, UINT flags,
 static inline void process_sent_messages(void)
 {
     MSG msg;
-    peek_message( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, 0 );
+    peek_message( &msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, 0, FALSE );
 }

@@ -3800,7 +3805,7 @@ BOOL WINAPI DECLSPEC_HOTPATCH PeekMessageW( MSG *msg_out, HWND hwnd, UINT first,
     USER_CheckNotLock();
     check_for_driver_events( 0 );

-    ret = peek_message( &msg, hwnd, first, last, flags, 0 );
+    ret = peek_message( &msg, hwnd, first, last, flags, 0, FALSE );
     if (ret < 0) return FALSE;

if (!ret)
@@ -3808,7 +3813,8 @@ BOOL WINAPI DECLSPEC_HOTPATCH PeekMessageW( MSG *msg_out, HWND hwnd, UINT first,
         flush_window_surfaces( TRUE );
         ret = wow_handlers.wait_message( 0, NULL, 0, QS_ALLINPUT, 0 );
         /* if we received driver events, check again for a pending message */
-        if (ret == WAIT_TIMEOUT || peek_message( &msg, hwnd, first, last, flags, 0 ) <= 0) return FALSE;
+        if (ret == WAIT_TIMEOUT || peek_message( &msg, hwnd, first, last, flags, 0, FALSE ) <= 0)
+            return FALSE;
     }

check_for_driver_events( msg.message );
@@ -3862,7 +3868,7 @@ BOOL WINAPI DECLSPEC_HOTPATCH GetMessageW( MSG *msg, HWND hwnd, UINT first, UINT
     }
     else mask = QS_ALLINPUT;

-    while (!(ret = peek_message( msg, hwnd, first, last, PM_REMOVE | (mask << 16), mask )))
+    while (!(ret = peek_message( msg, hwnd, first, last, PM_REMOVE | (mask << 16), mask, FALSE )))
     {
         wait_objects( 1, &server_queue, INFINITE, mask & (QS_SENDMESSAGE | QS_SMRESULT), mask, 0 );
     }