why msgbox for input make the code no response
조회 수: 1 (최근 30일)
이전 댓글 표시
hi,
whhy when create msgbox for input value within code , the window of input is not responding. But I used it in other function , it is work.
thanks
댓글 수: 0
답변 (2개)
Image Analyst
2014년 3월 2일
msgbox's only input is a string that it displays to the user. It does not accept input from the user, only from the programmer. If you want to accept input from the user, use questdlg() or inputdlg().
댓글 수: 4
Image Analyst
2014년 3월 2일
Try this code:
% Ask user for a number.
defaultValue = 45;
titleBar = 'Enter a 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
Image Analyst
2014년 3월 2일
Not sure what that means and I didn't run the code. But if you want a response from a message box presented to the user, you're going to have to use questdlg() instead of msgbox().
댓글 수: 2
참고 항목
카테고리
Help Center 및 File Exchange에서 Dialog Boxes에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!