MATLAB: Can’t i open uigetdir dialog box while run the program

uigetdir

When i place a break point on the line of function uigetdir(), i can open the dialog box when i step over (F10) the function line.
But if i remove the break point and run the program, the execution will pass the line of function uigetdir() and no dialog box shows up.
I wonder if i need to add uiwait() after that, but i don't know how to use it. If i directly add uiwait() after it, it will hold the whole program.
Thanks!

Best Answer

You don't need uiwait() after the call to uigetdir(). Can you post a small snippet of the program to illustrate your problem. For example, this code definitely asks for the folder before it puts up the message box:
clc;    % Clear the command window.
close all;  % Close all figures (except those of imtool.)
clear;  % Erase all existing variables.
workspace;  % Make sure the workspace panel is showing.
folder = uigetdir();
msgbox('Done with demo');
Related Question