1 files changed, 5 insertions, 5 deletions

diff --git a/source/blender/blenkernel/BKE_screen.h b/source/blender/blenkernel/BKE_screen.h
index 3922bfb6c0d..3691ab677b7 100644
--- a/source/blender/blenkernel/BKE_screen.h
+++ b/source/blender/blenkernel/BKE_screen.h
@@ -55,7 +55,7 @@ struct wmWindowManager;
 typedef struct wmSpaceTypeListenerParams {
   struct wmWindow *window;
   struct ScrArea *area;
-  struct wmNotifier *notifier;
+  const struct wmNotifier *notifier;
   const struct Scene *scene;
 } wmSpaceTypeListenerParams;
 
@@ -124,7 +124,7 @@ typedef struct wmRegionListenerParams {
   struct wmWindow *window;
   struct ScrArea *area; /* Can be NULL when the region is not part of an area. */
   struct ARegion *region;
-  struct wmNotifier *notifier;
+  const struct wmNotifier *notifier;
   const struct Scene *scene;
 } wmRegionListenerParams;
 
@@ -291,7 +291,7 @@ enum {
 
 /* Draw an item in the uiList */
 typedef void (*uiListDrawItemFunc)(struct uiList *ui_list,
-                                   struct bContext *C,
+                                   const struct bContext *C,
                                    struct uiLayout *layout,
                                    struct PointerRNA *dataptr,
                                    struct PointerRNA *itemptr,
@@ -303,12 +303,12 @@ typedef void (*uiListDrawItemFunc)(struct uiList *ui_list,
 
 /* Draw the filtering part of an uiList */
 typedef void (*uiListDrawFilterFunc)(struct uiList *ui_list,
-                                     struct bContext *C,
+                                     const struct bContext *C,
                                      struct uiLayout *layout);
 
 /* Filter items of an uiList */
 typedef void (*uiListFilterItemsFunc)(struct uiList *ui_list,
-                                      struct bContext *C,
+                                      const struct bContext *C,
                                       struct PointerRNA *,
                                       const char *propname);