Fixed invalid mouse cursor state on win32 (close #3675).

As a side effect, window class names are now uniques (process wide)
allowing to unregister them and so to unload properly the msw vouts.
(cherry picked from commit 6034b5c50ffda54704f8e053a7b0b2a55bddb73d)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/video_output/msw/common.c

@@ -84,9 +84,6 @@ int CommonInit(vout_display_t *vd)
     var_Create(vd, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
     var_Create(vd, "video-deco", VLC_VAR_BOOL | VLC_VAR_DOINHERIT);
 
-    /* FIXME remove mouse hide from msw */
-    var_Create(vd, "mouse-hide-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
-
     /* */
     sys->event = EventThreadCreate(vd);
     if (!sys->event)
@@ -195,9 +192,6 @@ void CommonManage(vout_display_t *vd)
     /* */
     if (EventThreadGetAndResetHasMoved(sys->event))
         UpdateRects(vd, NULL, NULL, false);
-
-    /* Pointer change */
-    EventThreadMouseAutoHide(sys->event);
 }
 
 /**
@@ -555,9 +549,6 @@ static int CommonControlSetFullscreen(vout_display_t *vd, bool is_fullscreen)
             SetWindowPlacement(hwnd, &window_placement);
             ShowWindow(hwnd, SW_SHOWNORMAL);
         }
-
-        /* Make sure the mouse cursor is displayed */
-        EventThreadMouseShow(sys->event);
     }
     return VLC_SUCCESS;
 }
@@ -637,8 +628,10 @@ int CommonControl(vout_display_t *vd, int query, va_list args)
         return VLC_SUCCESS;
     }
 
-    case VOUT_DISPLAY_RESET_PICTURES:
     case VOUT_DISPLAY_HIDE_MOUSE:
+        EventThreadMouseHide(sys->event);
+        return VLC_SUCCESS;
+    case VOUT_DISPLAY_RESET_PICTURES:
         assert(0);
     default:
         return VLC_EGENERIC;

modules/video_output/msw/direct3d.c

@@ -73,23 +73,12 @@ vlc_module_begin ()
     add_shortcut("direct3d_xp")
     set_callbacks(OpenVideoXP, Close)
 
-    /* FIXME: Hack to avoid unregistering our window class */
-    cannot_unload_broken_library()
-
     add_submodule()
         set_capability("vout display", 150)
         add_shortcut("direct3d_vista")
         set_callbacks(OpenVideoVista, Close)
 vlc_module_end ()
 
-#if 0 /* FIXME */
-    /* check if we registered a window class because we need to
-     * unregister it */
-    WNDCLASS wndclass;
-    if (GetClassInfo(GetModuleHandle(NULL), "VLC DirectX", &wndclass))
-        UnregisterClass("VLC DirectX", GetModuleHandle(NULL));
-#endif
-
 /*****************************************************************************
  * Local prototypes.
  *****************************************************************************/
@@ -163,7 +152,7 @@ static int Open(vlc_object_t *object)
     vout_display_info_t info = vd->info;
     info.is_slow = true;
     info.has_double_click = true;
-    info.has_hide_mouse = true;
+    info.has_hide_mouse = false;
     info.has_pictures_invalid = true;
 
     /* Interaction */

modules/video_output/msw/directx.c

@@ -118,19 +118,8 @@ vlc_module_begin()
     set_capability("vout display", 100)
     add_shortcut("directx")
     set_callbacks(Open, Close)
-
-    /* FIXME: Hack to avoid unregistering our window class */
-    cannot_unload_broken_library()
 vlc_module_end()
 
-#if 0 /* FIXME */
-    /* check if we registered a window class because we need to
-     * unregister it */
-    WNDCLASS wndclass;
-    if (GetClassInfo(GetModuleHandle(NULL), "VLC DirectX", &wndclass))
-        UnregisterClass("VLC DirectX", GetModuleHandle(NULL));
-#endif
-
 /*****************************************************************************
  * Local prototypes.
  *****************************************************************************/
@@ -220,7 +209,7 @@ static int Open(vlc_object_t *object)
     vout_display_info_t info = vd->info;
     info.is_slow = true;
     info.has_double_click = true;
-    info.has_hide_mouse = true;
+    info.has_hide_mouse = false;
     info.has_pictures_invalid = true;
 
     /* Interaction TODO support starting with wallpaper mode */

modules/video_output/msw/events.h

@@ -49,8 +49,7 @@ void            EventThreadDestroy( event_thread_t * );
 int             EventThreadStart( event_thread_t *, event_hwnd_t *, const event_cfg_t * );
 void            EventThreadStop( event_thread_t * );
 
-void            EventThreadMouseAutoHide( event_thread_t * );
-void            EventThreadMouseShow( event_thread_t * );
+void            EventThreadMouseHide( event_thread_t * );
 void            EventThreadUpdateTitle( event_thread_t *, const char *psz_fallback );
 int             EventThreadGetWindowStyle( event_thread_t * );
 void            EventThreadUpdateWindowPosition( event_thread_t *, bool *pb_moved, bool *pb_resized,

modules/video_output/msw/glwin32.c

@@ -57,20 +57,8 @@ vlc_module_begin()
     add_shortcut("glwin32")
     add_shortcut("opengl")
     set_callbacks(Open, Close)
-
-    /* FIXME: Hack to avoid unregistering our window class */
-    cannot_unload_broken_library ()
 vlc_module_end()
 
-#if 0 /* FIXME */
-    /* check if we registered a window class because we need to
-     * unregister it */
-    WNDCLASS wndclass;
-    if(GetClassInfo(GetModuleHandle(NULL), "VLC DirectX", &wndclass))
-        UnregisterClass("VLC DirectX", GetModuleHandle(NULL));
-#endif
-
-
 /*****************************************************************************
  * Local prototypes.
  *****************************************************************************/
@@ -133,7 +121,7 @@ static int Open(vlc_object_t *object)
 
     vout_display_info_t info = vd->info;
     info.has_double_click = true;
-    info.has_hide_mouse = true;
+    info.has_hide_mouse = false;
     info.has_pictures_invalid = true;
 
    /* Setup vout_display now that everything is fine */

modules/video_output/msw/wingdi.c

@@ -134,7 +134,7 @@ static int Open(vlc_object_t *object)
     vout_display_info_t info = vd->info;
     info.is_slow              = false;
     info.has_double_click     = true;
-    info.has_hide_mouse       = true;
+    info.has_hide_mouse       = false;
     info.has_pictures_invalid = true;
 
     /* */