diff --git a/graphics/nxbe/nxbe_closewindow.c b/graphics/nxbe/nxbe_closewindow.c
index b05bd003761..c5d577e5b9f 100644
--- a/graphics/nxbe/nxbe_closewindow.c
+++ b/graphics/nxbe/nxbe_closewindow.c
@@ -89,7 +89,7 @@ void nxbe_closewindow(FAR struct nxbe_window_s *wnd)
        * indicate the modal state.
        */
 
-      DEBUGASSERT(wnd->above == NULL & NXBE_STATE_ISMODAL(be));
+      DEBUGASSERT(wnd->above == NULL && NXBE_STATE_ISMODAL(be));
 
       /* Leave the modal state */
 
diff --git a/graphics/nxglib/cursor/nxglib_cursor_backup.c b/graphics/nxglib/cursor/nxglib_cursor_backup.c
index 322800c0f0a..ce37c5f02ed 100644
--- a/graphics/nxglib/cursor/nxglib_cursor_backup.c
+++ b/graphics/nxglib/cursor/nxglib_cursor_backup.c
@@ -100,8 +100,8 @@ void NXGL_FUNCNAME(nxglib_cursor_backup, NXGLIB_SUFFIX)
     {
       /* Get the width and the height of the images in pixels/rows */
 
-      width   = be->cursor.bounds.pt2.x = be->cursor.bounds.pt1.x + 1;
-      height  = be->cursor.bounds.pt2.y = be->cursor.bounds.pt1.y + 1;
+      width   = be->cursor.bounds.pt2.x - be->cursor.bounds.pt1.x + 1;
+      height  = be->cursor.bounds.pt2.y - be->cursor.bounds.pt1.y + 1;
 
       /* Get the width of the images in bytes. */
 
diff --git a/graphics/nxglib/cursor/nxglib_cursor_draw.c b/graphics/nxglib/cursor/nxglib_cursor_draw.c
index a64a5998e1d..a5e46189828 100644
--- a/graphics/nxglib/cursor/nxglib_cursor_draw.c
+++ b/graphics/nxglib/cursor/nxglib_cursor_draw.c
@@ -147,8 +147,8 @@ void NXGL_FUNCNAME(nxglib_cursor_draw, NXGLIB_SUFFIX)
     {
       /* Get the width and the height of the images in pixels/rows */
 
-      width   = be->cursor.bounds.pt2.x = be->cursor.bounds.pt1.x + 1;
-      height  = be->cursor.bounds.pt2.y = be->cursor.bounds.pt1.y + 1;
+      width   = be->cursor.bounds.pt2.x - be->cursor.bounds.pt1.x + 1;
+      height  = be->cursor.bounds.pt2.y - be->cursor.bounds.pt1.y + 1;
 
       /* Get the width of the images in bytes. */
 
diff --git a/graphics/nxglib/cursor/nxglib_cursor_erase.c b/graphics/nxglib/cursor/nxglib_cursor_erase.c
index fc48376d420..5f6ce7b507f 100644
--- a/graphics/nxglib/cursor/nxglib_cursor_erase.c
+++ b/graphics/nxglib/cursor/nxglib_cursor_erase.c
@@ -99,8 +99,8 @@ void NXGL_FUNCNAME(nxglib_cursor_erase, NXGLIB_SUFFIX)
     {
       /* Get the width and the height of the images in pixels/rows */
 
-      width   = be->cursor.bounds.pt2.x = be->cursor.bounds.pt1.x + 1;
-      height  = be->cursor.bounds.pt2.y = be->cursor.bounds.pt1.y + 1;
+      width   = be->cursor.bounds.pt2.x - be->cursor.bounds.pt1.x + 1;
+      height  = be->cursor.bounds.pt2.y - be->cursor.bounds.pt1.y + 1;
 
       /* Get the width of the images in bytes. */
 
diff --git a/include/nuttx/nx/nxcursor.h b/include/nuttx/nx/nxcursor.h
index 17a006d4609..ef2dede5bfa 100644
--- a/include/nuttx/nx/nxcursor.h
+++ b/include/nuttx/nx/nxcursor.h
@@ -165,7 +165,7 @@ int nxcursor_enable(NXHANDLE hnd, bool enable);
  ****************************************************************************/
 
 #if defined(CONFIG_NX_HWCURSORIMAGE) || defined(CONFIG_NX_SWCURSOR)
-int nxcursor_setimage(NXHANDLE hnd, FAR struct nx_cursorimage_s *image);
+int nxcursor_setimage(NXHANDLE hnd, FAR const struct nx_cursorimage_s *image);
 #endif
 
 /****************************************************************************
diff --git a/libs/libnx/nxmu/nx_cursor.c b/libs/libnx/nxmu/nx_cursor.c
index 321ff8f0b16..ed4d61cd4cd 100644
--- a/libs/libnx/nxmu/nx_cursor.c
+++ b/libs/libnx/nxmu/nx_cursor.c
@@ -119,7 +119,7 @@ int nxcursor_enable(NXHANDLE hnd, bool enable)
  ****************************************************************************/
 
 #if defined(CONFIG_NX_HWCURSORIMAGE) || defined(CONFIG_NX_SWCURSOR)
-int nxcursor_setimage(NXHANDLE hnd, FAR struct nx_cursorimage_s *image)
+int nxcursor_setimage(NXHANDLE hnd, FAR const struct nx_cursorimage_s *image)
 {
   FAR struct nxmu_conn_s *conn = (FAR struct nxmu_conn_s *)hnd;
   struct nxsvrmsg_curimage_s outmsg;