Is there a way to ask the user the hours?

I'm making a interactive clock , and one of the features that the clock have is a "reminder". I'd like to know if there is a way to ask the user at what time would he like to receive the pop-up message and if i could put it in a while . I'm imagining something like give a variable to the time inputed to the user, and then use a while cycle, so when the variable turns false ( a.k.a the time that the user inputed is the time "now" ) the reminder would pop up. Can someone help?

Answer 1

[Image Analyst]

Here's a robust snippet using inputdlg() that you can adapt.

% Ask user for one integer number.
defaultValue = 45;
titleBar = 'Enter an integer value';
userPrompt = 'Enter the integer';
caUserInput = inputdlg(userPrompt, titleBar, 1, {num2str(defaultValue)});
if isempty(caUserInput),return,end; % Bail out if they clicked Cancel.
% Round to nearest integer in case they entered a floating point number.
integerValue = round(str2double(cell2mat(caUserInput)));
% Check for a valid integer.
if isnan(integerValue)
    % They didn't enter a number.  
    % They clicked Cancel, or entered a character, symbols, or something else not allowed.
    integerValue = defaultValue;
    message = sprintf('I said it had to be an integer.\nI will use %d and continue.', integerValue);
    uiwait(warndlg(message));
end

Answer 2

[jgg]

You'd still need some kind of a tic-cycle to poll the current time, which is probably the guts of your clock function. I think the thing you want is etime if you're using strings, but otherwise:

Basically, when the reminder is set call:

%get input time
 t = input('Remind in how many seconds: ')
 reminder_time = now + t;
 timer_on = true;

Then just add a check on clock tic:

   if now >= reminder_time && timer_on
     popup_reminder() %your function
     timer_on = false;
   end

Probably better than using a while loop.