message length
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HOw to display the length of message given which is given as input in the message box?
1 个评论
Jan
2012-4-30
What is "the message box"? What means "input" here? Which "length" do you want: The number of characters or the width when displayed on the screen considering the font and line wrapping?
采纳的回答
Titus Edelhofer
2012-4-30
Hi Vino,
if you do
edit msgbox
you will see at line 274 (at least in R2012a I'm looking at) a call to textwrap with argument 75. So: msgbox will make the box as large as to fit the string you entered, but if it will be too long, it will be broken such that it is 75 characters at most. Of course you could call textwarp yourself before calling msgbox if you want to have less characters in a row.
Titus
3 个评论
Vino
2012-5-3
Jan
2012-5-4
The size of the message box is increased automatically. But you can call the function textwrap by your own also. Another solution is using the FEX submission http://www.mathworks.com/matlabcentral/fileexchange/24871-autowarndlg . The largest part of the code cares for reshaping the message text until it fits nicely into a box.
Tom
2012-9-12
hey,
I'm currently bothered by the 75 characters limit of the msgbox function aswell... Do you know if it's possible to use the textwrap function also to raise these 75 characters that the automatic textwrap does not occur. Or can I only use it to reduce the length of characters in a messagebox by textwrapping my 'string' before??
I hope that somebody can help me with my problem even if this is an old entry!
更多回答（1 个）
Vino
2012-5-4
0 个投票
1 个评论
Titus Edelhofer
2012-5-4
yes, you can: use e.g. num2str to convert to a string, e.g.
msgbox(['The answer is ' num2str(42) '.'])
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