| Code: |
| '== Unicode File Read Demo
'== By Brent D. Thorn, 11/2007 '== License: Public Domain '== Description: ' Prompts for a Unicode text file, opens the file, and reads it one line at a ' time, displaying each line in a message box. ' form a string to display in the box's caption cap$ = AtoW$("- Notice -") ' get the name of a file FileDialog "Open Unicode file", "*.txt", file$ If file$ = "" Then End ' open the file for input as #1 If OpenForInputW(file$, "#1") Then Do Until EOF(#1) ' read a single line into msg$ Call LineInputW "#1", msg$ ' display the text in a message box ' Note this is calling the Unicode version CallDLL #user32, "MessageBoxW", _ _NULL As ULong, _ msg$ As Ptr, _ cap$ As Ptr, _ _MB_ICONEXCLAMATION As ULong, _ ret As Long Loop ' reached end of file, close it Close #1 Else Notice "The selected file is not valid." End If End Function OpenForInputW( FileName$, Handle$ ) '-- Opens a file and checks it for UTF-16/Unicode, little-endianness. '-- Parameters: ' FileName$ - string holds name of file to open ' Handle$ - string holds name of handle to map to file '-- Returns: ' False (zero) for failure. The handle is invalid. ' True (nonzero) for success. The handle is valid. On Error GoTo [FileError] Open FileName$ For Binary As #local1 hdr$ = Input$(#local1, 2) If hdr$ = Chr$(255) + Chr$(254) Then OpenForInputW = 1 MapHandle #local1, Handle$ Else Close #local1 End If Exit Function [FileError] End Function Sub LineInputW Handle$, ByRef Text$ '-- Reads a line of text from a UTF-16/Unicode, little-endian file. '-- Parameters: ' Handle$ - string holding a handle's name ' Text$ - string variable to hold the result crlf$ = Chr$(13) + Chr$(0) + Chr$(10) + Chr$(0) Text$ = "" Do Until EOF(#Handle$) Text$ = Text$ + Input$(#Handle$, 1) If Right$(Text$, 4) = crlf$ Then Exit Do Loop If Right$(Text$, 4) = crlf$ Then Text$ = Left$(Text$, Len(Text$) - 4) End If End Sub Function AtoW$( A$ ) '-- Converts an ASCII/ANSI string to a UTF-16/Unicode little-endian ' string by adding NUL [CHR$(0)] characters. For c = 1 To Len(A$) AtoW$ = AtoW$ + Mid$(A$, c, 1) + Chr$(0) Next End Function |
Subject: [BETA] Unicode File Read Demo
This should be useful for internationalization of LB apps. Let me know it it works for you.
Subject: Re: [BETA] Unicode File Read Demo
Most amazing. I had to use wordpad for the unicode and save it as a unicode text document before it would work, though.
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