find file dialog box
Posted: Wed Feb 18, 2015 11:25 pm
In Supercard all you need to to is type Open proj "xxx" and a dialog box opens so you can locate the project, but how is this done in Livecode?
Thanks,
David
Thanks,
David
SC's behavior there is less of a feature per se than a graceful way to handle an error - the error being that there is no project file at "xxx".
In LiveCode, file open operations, whether stack files or any other file, are handled by reporting errors in the result, which you can check immediately after attempting to open a file to determine what to do next, e.g.:
Code: Select all
open stack "xxxx"
if the result is not empty then
--- error handling here
end ifCode: Select all
on mouseUp
OpenStackFile "SomeFile"
end mouseUp
on OpenStackFile pFile
if there is not a stack pFile then
answer file "Where is the stack file "& quote& pFile& quote&"?" \
with type "LiveCode Stack|livecode,rev,mc|RSTK" or type "All Files|*|*"
if it is empty then exit to top
if there is not a stack it then
answer "Not a stack file: "& it
exit to top
end if
put it into pFile
end if
open stack pFile
end OpenStackFileAlso, the "is a stack" function is pretty nifty. LC also include "is a file" and "is a folder", but when you use "is a stack" it not only checks to see if the file exists, but ensures that it's also a valid LiveCode stack file.
