Yes, the limit is 1024 characters.

>There isn't such a limit.
>
>>There were some implementations allowing longer texts, but then of course had a different GUI -
>>IIRC Steve Black of Foxpro Wiki and other fame put one out into Open Source, which we used with a table based translation. Texts were entered into a table - but uncertain if that was included in Steves sources or homegrown.
>>
>>
>>>I use MESSAGEBOX() to show message on the screen but it's limited to 255 characters.
>>>
>>>is there any way which can show more characters?
>>>
>>>Thanks in advance
>>>
>>>Jerry Yang