Creating Graphical User Interfaces

Specify the Location of the Dialog

The dialog application M-file accepts an input argument that specifies where to display the dialog. This enables the Close button callback to locate the dialog with respect to the main application window. The argument is a two-element vector containing the left and bottom offsets from the right and lower edge of the screen, in character units. The Close button callback determines these values.

Preventing Figure Flash

In some cases, repositioning the dialog's figure may cause it to "flash" on the screen in its current position before the set command repositions it. To prevent this effect, save the dialog with it's figure Visible property set to off. You can then set the Visible property to on after specifying the position. Note that you must specify the Position property before setting visibility to on.

    if nargin == 1
        pos_size = get(fig,'Position');
        pos = varargin{1};
        if length(pos) ~= 2
            error('Input argument must be a 2-element vector')
        end
        new_pos = [pos(1) pos(2) pos_size(3) pos_size(4)];
        set(fig,'Position',new_pos,'Visible','on')
    end

Launch the Dialog

Wait for User Response