GUI problem while trying to call function from pushbutton1 to pushbutton2.

Question

Sandhu 2011-10-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/19695-gui-problem-while-trying-to-call-function-from-pushbutton1-to-pushbutton2

i want to access data from push button1 to push button2. here is my code

function pushbutton1_Callback(hObject, eventdata, handles)
  [FileName,PathName] = uigetfile('*.avi');
  PathOriginal=sprintf('%s%s',PathName,FileName);
  readobj1=mmreader(PathOriginal);
  readobj = readobj1;
  %set(handles.pushbutton1,'UserData',readobj);
function pushbutton2_Callback(hObject, eventdata, handles)
%readobj=get(handles.pushbutton1,'UserData');
vidframes=read(handles.readobj);
numframes=get(readobj,'numberOfFrames');

when i run this file..i am getting error like this...any one please help me.

error message in command window:

Reference to non-existent field 'readobj'.
Error in ==> trying>pushbutton2_Callback at 96
vidframes=read(handles.readobj);
Error in ==> gui_mainfcn at 96
        feval(varargin{:});
Error in ==> trying at 43
    gui_mainfcn(gui_State, varargin{:});
Error in ==>
@(hObject,eventdata)trying('pushbutton2_Callback',hObject,eventdata,guidata(hObject))
??? Error while evaluating uicontrol Callback