GdkWindow. Use gdkCursorNewForDisplay
or gdkCursorNewFromPixmap to create the cursor. To make the cursor
invisible, use GDK_BLANK_CURSOR. Passing NULL for the cursor argument
to gdkWindowSetCursor means that window will use the cursor of its
parent window. Most windows should use this default.gdkWindowSetCursor(object, cursor = NULL)objectcursor