(w32_wnd_proc): Ensure mouse capture is released if

frame loses focus, and that mouse button state is reset.  Ditto
when the menu bar is activated.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/w32fns.c b/src/w32fns.c
index b54e56e3c56..201fbb3fc76 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -4237,6 +4237,8 @@ w32_wnd_proc (hwnd, msg, wParam, lParam)
       goto dflt;
 
     case WM_INITMENU:
+      button_state = 0;
+      ReleaseCapture ();
       /* We must ensure menu bar is fully constructed and up to date
          before allowing user interaction with it.  To achieve this
          we send this message to the lisp thread and wait for a
@@ -4382,6 +4384,8 @@ w32_wnd_proc (hwnd, msg, wParam, lParam)
       goto command;
     case WM_KILLFOCUS:
       unregister_hot_keys (hwnd);
+      button_state = 0;
+      ReleaseCapture ();
     case WM_MOVE:
     case WM_SIZE:
     case WM_COMMAND: