GUI相应鼠标事件

 function varargout = GUI18(varargin)

 % GUI18 MATLAB code for GUI18.fig

 %      GUI18, by itself, creates a new GUI18 or raises the existing

 %      singleton*.

 %

 %      H = GUI18 returns the handle to a new GUI18 or the handle to

 %      the existing singleton*.

 %

 %      GUI18('CALLBACK',hObject,eventData,handles,...) calls the local

 %      function named CALLBACK in GUI18.M with the given input arguments.

 %

 %      GUI18('Property','Value',...) creates a new GUI18 or raises the

 %      existing singleton*.  Starting from the left, property value pairs are

 %      applied to the GUI before GUI18_OpeningFcn gets called.  An

 %      unrecognized property name or invalid value makes property application

 %      stop.  All inputs are passed to GUI18_OpeningFcn via varargin.

 %

 %      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one

 %      instance to run (singleton)".

 %

 % See also: GUIDE, GUIDATA, GUIHANDLES

 % Edit the above text to modify the response to help GUI18

 % Last Modified by GUIDE v2. -Jan- ::

 % Begin initialization code - DO NOT EDIT

 gui_Singleton = ;

 gui_State = struct('gui_Name',       mfilename, ...

                    'gui_Singleton',  gui_Singleton, ...

                    'gui_OpeningFcn', @GUI18_OpeningFcn, ...

                    'gui_OutputFcn',  @GUI18_OutputFcn, ...

                    'gui_LayoutFcn',  [] , ...

                    'gui_Callback',   []);

 if nargin && ischar(varargin{})

     gui_State.gui_Callback = str2func(varargin{});

 end

 if nargout

     [varargout{:nargout}] = gui_mainfcn(gui_State, varargin{:});

 else

     gui_mainfcn(gui_State, varargin{:});

 end

 % End initialization code - DO NOT EDIT

 % --- Executes just before GUI18 is made visible.

 function GUI18_OpeningFcn(hObject, eventdata, handles, varargin)

 % This function has no output args, see OutputFcn.

 % hObject    handle to figure

 % eventdata  reserved - to be defined in a future version of MATLAB

 % handles    structure with handles and user data (see GUIDATA)

 % varargin   command line arguments to GUI18 (see VARARGIN)

 % Choose default command line output for GUI18

 handles.output = hObject;

 global ButtonDown pos1;

 ButtonDown = [];

 pos1 = [];

 % Update handles structure

 guidata(hObject, handles);

 % UIWAIT makes GUI18 wait for user response (see UIRESUME)

 % uiwait(handles.figure1);

 % --- Outputs from this function are returned to the command line.

 function varargout = GUI18_OutputFcn(hObject, eventdata, handles)

 % varargout  cell array for returning output args (see VARARGOUT);

 % hObject    handle to figure

 % eventdata  reserved - to be defined in a future version of MATLAB

 % handles    structure with handles and user data (see GUIDATA)

 global ButtonDown pos1;

 if strcmp(get(gcf,'SelectionType'),'normal')

     ButtonDown = ;

     pos1 = get (handles.axes1,'CurrentPoint');

 end

 % Get default command line output from handles structure

 varargout{} = handles.output;

 % --- Executes on mouse motion over figure - except title and menu.

 function figure1_WindowButtonMotionFcn(hObject, eventdata, handles)

 % hObject    handle to figure1 (see GCBO)

 % eventdata  reserved - to be defined in a future version of MATLAB

 % handles    structure with handles and user data (see GUIDATA)

 global ButtonDown pos1

 if ButtonDown ==

     pos = get (handles.axes1,'CurrentPoint');

     line([pos1(,) pos(,)],[pos1(,) pos(,)],'LineWidth',);

     pos1=pos;

 end

 % --- Executes on key release with focus on figure1 or any of its controls.

 function figure1_WindowKeyReleaseFcn(hObject, eventdata, handles)

 % hObject    handle to figure1 (see GCBO)

 % eventdata  structure with the following fields (see MATLAB.UI.FIGURE)

 %    Key: name of the key that was released, in lower case

 %    Character: character interpretation of the key(s) that was released

 %    Modifier: name(s) of the modifier key(s) (i.e., control, shift) released

 % handles    structure with handles and user data (see GUIDATA)

 % --- Executes on mouse press over figure background, over a disabled or

 % --- inactive control, or over an axes background.

 function figure1_WindowButtonUpFcn(hObject, eventdata, handles)

 % hObject    handle to figure1 (see GCBO)

 % eventdata  reserved - to be defined in a future version of MATLAB

 % handles    structure with handles and user data (see GUIDATA)

 global ButtonDown

 ButtonDown =  ;