Creating Graphical User Interfaces

Launch the Dialog

This section of the application M-file launches the dialog if the number of input arguments is zero or one numeric value. This involves:

• Checking for the correct number of input arguments (callbacks have 4 arguments).
• Using openfig to load the FIG-file.
• Setting the figure color to the standard GUI color on the host system.
• Creating the handles structure.

Note that the function returns one output argument, answer, which is passed to the Close button callback.

function answer = modaldlg(varargin)
error(nargchk(0,4,nargin)) % function takes 0, 1, or 4 arguments
if nargin == 0 | isnumeric(varargin{1}) 
    fig = openfig(mfilename,'reuse');
    set(fig,'Color',get(0,'defaultUicontrolBackgroundColor'));
    handles = guihandles(fig);
    guidata(fig, handles);

The Confirmation Dialog Application M-file

Specify the Location of the Dialog