www.gusucode.com > sigtools 工具箱matlab源码程序 > sigtools/@sigtools/@fdatool/isappdata.m
function boolflag = isappdata(hFDA,fieldname) %ISAPPDATA True if application-defined data exists. % ISAPPDATA(hFDA, FIELDNAME) Returns true if FIELDNAME exists as % an application-defined field associated with hFDA. % Author(s): R. Losada % Copyright 1988-2002 The MathWorks, Inc. narginchk(2,2); data = get(hFDA,'ApplicationData'); boolflag = isfield(data,fieldname);