master 4fb028be6c 3/3: Fix releasing the mouse on top of the tool bar on MS Windows

[Po Lu]

branch: master
commit 4fb028be6c2de5a556f56bb40a3f948a143cef37
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Fix releasing the mouse on top of the tool bar on MS Windows
    
    * src/w32term.c (w32_read_socket): Don't handle tool bar clicks
    specially for button up events if no tool bar item was
    previously pressed.
---
 src/w32term.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/w32term.c b/src/w32term.c
index 1937f94645..205ac74966 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -5365,7 +5365,9 @@ w32_read_socket (struct terminal *terminal,
 
                     window = window_from_coordinates (f, x, y, 0, 1, 1);
 
-                    if (EQ (window, f->tool_bar_window))
+                    if (EQ (window, f->tool_bar_window)
+                       && (inev.modifiers & down_modifier
+                           || f->last_tool_bar_item != -1))
                       {
                         w32_handle_tool_bar_click (f, &inev);
                         tool_bar_p = 1;