Question

Is there a version of Visual Basic that supports the encoding of the charset UTF-8 in rich text boxes?

Asked by: NAS0618

I have set up a quick VB 6.0 program with a rtf text box and am copying and pasting Greek words from a Word document into it but my program inserts tiny square boxes in between some of the letters. I would like to know if there is a version of VB where an encoding property can be set to UTF-8 for the rtf text box?

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Asked On
2009-09-05 at 15:42:15ID24710329
Tags

VB

,

Programming

Topics

VB Controls

,

Microsoft Applications

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Answers

 

by: danaseamanPosted on 2009-09-05 at 19:02:11ID: 25268529

RichEdit controls support UTF-16, however Vb6 RichTextBox is an ANSI control thus does not support UTF-16 via the Text Get/Let Property.

To support UTF-8 you have to convert it to UTF-16 and then send that to the control.
Please advise if you need a Vb6 function to do this.

Here is a RichEdit control the supports UTF-16:
http://www.mvps.org/emorcillo/download/vb6/ctl_riched.msi
You will need to download dependencies OleLib.Tlb and OleLib2.Tlb and recompile the control against the these Tlbs.


 

by: NAS0618Posted on 2009-09-06 at 04:35:39ID: 25269485

Thank you for the help. I would like th see the function that converts the text to UTF-16 please.

 

by: danaseamanPosted on 2009-09-06 at 09:21:10ID: 25270482

Function ADO_DecodeUTF8 converts UTF8 to UTF16.

'Purpose: UTF8 to UTF16 using ADO
Public Function ADO_DecodeUTF8(ByVal strUTF8 As String) As String
 
    Dim objStream As Object
    Dim data() As Byte
    Const adTypeBinary    As Long = 1
    Const adTypeText      As Long = 2
    Const adModeReadWrite As Long = 3
    
    data = StrConv(strUTF8, vbFromUnicode, 1033)
    Set objStream = CreateObject("ADODB.Stream")
    objStream.Charset = "utf-8"
    objStream.Mode = adModeReadWrite
    objStream.Type = adTypeBinary
    objStream.Open
    objStream.Write data
    objStream.Flush
    objStream.Position = 0
    objStream.Type = adTypeText
    ADO_DecodeUTF8 = objStream.Readtext
    objStream.Close
 
End Function

                                              
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by: NAS0618Posted on 2009-09-06 at 09:27:56ID: 31625359

Thanks!

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