Checks the encoding of the specified file.
FileEncoding ( filename )
Argument |
Description |
|---|---|
filename |
The name of the file you want to test for encoding type |
A value of the enumerated datatype Encoding. Values are:
EncodingANSI!
EncodingUTF8!
EncodingUTF16LE!
EncodingUTF16BE!
If filename does not exist, returns null.
Use this function to determine the encoding used in an external file before attempting to use it in a PowerBuilder application.
The following example opens a file in stream mode and tests to determine whether it uses ANSI encoding. If it does, it reads data from the file into a blob and uses the String function to convert the blob to a Unicode string:
long ll_filenum
integer li_bytes
string ls_unicode
blob lb_ansi
encoding eRet
ll_filenum = FileOpen("employee.dat",StreamMode!,
Read!, LockWrite!, Replace!)
// test the file’s encoding
eRet = FileEncoding("employee.dat")
if eRet = EncodingANSI! then
li_ bytes = FileReadEx(ll_filenum, lb_ansi)
ls_unicode = string(lb_ansi, EncodingANSI!)
else
li_ bytes = FileReadEx(ll_filenum, ls_unicode)
end if
FileClose(ll_filenum)
