convert Unicode to ANSI

[bordino]

Is it possible to convert Unicode to ANSI in text box KeyPress Event?

or by typeing ansi character converting to unicode

[Merri]

Unfortunatenaly Unicode is already translated to ANSI by Windows before it comes to a regular VB6 textbox (as it is ANSI only).

[bordino]

Private Sub Form_Load()
Dim strUnicode As String, strANSI As String

Text1.Font.Charset = 178
strUnicode = ChrW(1594) & ChrW(1613)
strANSI = StrConv(strUnicode, vbFromUnicode, 1025)
Text1.Text = StrConv(strANSI, vbUnicode)
End Sub

something like above but convert ansi to unicode when u typing in keypress event

[bordino]

Function CUni(str1 As String) As String
Dim Char, struni As String
Dim ch1 As Integer
For i = 1 To Len(str1)
    Char = Left(str1, 1)
    
    Select Case Char
        'Case " ": ch1 = &H20
        Case "H": ch1 = &H622
        Case "h": ch1 = &H627
        Case "f", "F": ch1 = &H628
        Case "`": ch1 = &H67E
        Case "j", "J": ch1 = &H62A
        Case "e", "E": ch1 = &H62B
        Case "[": ch1 = &H62C
        Case "]": ch1 = &H6286
        Case "p", "P": ch1 = &H62D
        Case "o", "O": ch1 = &H62E
        Case "n", "N": ch1 = &H62F
        Case "b", "B": ch1 = &H630
        Case "v", "V": ch1 = &H631
        Case "c", "C": ch1 = &H632
        Case "\": ch1 = &H698
        Case "s", "S": ch1 = &H633
        Case "a", "A": ch1 = &H634
        Case "w", "W": ch1 = &H635
        Case "q", "Q": ch1 = &H636
        Case "x", "X": ch1 = &H637
        Case "z", "Z": ch1 = &H638
        Case "u", "U": ch1 = &H639
        Case "y", "Y": ch1 = &H63A
        Case "t", "T": ch1 = &H641
        Case "r", "R": ch1 = &H642
        Case ";": ch1 = &H6A9
        Case "'": ch1 = &H6AF
        Case "g", "G": ch1 = &H644
        Case "l", "L": ch1 = &H645
        Case "k", "K": ch1 = &H646
        Case ",": ch1 = &H648
        Case ">": ch1 = &H623
        Case "<": ch1 = &H624
        Case "i", "I": ch1 = &H647
        Case "d", "D": ch1 = &H6CC
        Case "M": ch1 = &H626
        Case "m": ch1 = &H621
        Case "0": ch1 = &H6F0
        Case "1": ch1 = &H6F1
        Case "2": ch1 = &H6F2
        Case "3": ch1 = &H6F3
        Case "4": ch1 = &H6F4
        Case "5": ch1 = &H6F5
        Case "6": ch1 = &H6F6
        Case "7": ch1 = &H6F7
        Case "8": ch1 = &H6F8
        Case "9": ch1 = &H6F9
        Case Else: ch1 = Asc(Char)
        
End Select
    
    'List1.AddItem ChrW(ch1)
    str1 = Right(str1, Len(str1) - 1)
    CUni = CUni + ChrW(ch1)
    
Next i
End Function

[Milk]

As mentioned by Merri standard Textboxes cannot display Unicode.

Merri has authored a series of controls including a textbox (UniText) that do support Unicode but I understand it's not 100% finished. If you have look at his code you will understand that it is an incredibly complicated thing to achieve in vb6.

[Merri]

Finishing it would require commercial resources, which I do not have (nor am willing to go for, especially with a language this old).


Anyway, it seems you have already turned on Arabic. This method:

    Text1.Font.Name = "Arial"
    Text1.Font.Size = 10
    Text1.Font.Charset = 178 ' Arabic ANSI

Enables Arabic display and writing as well as long as the keyboard is set to Arabic as well. Using IME does not work and it will be pain-in-the-bottom to fix it.

Then, this:

Text1.Text = StrConv(StrConv(ChrW$(1594) & ChrW$(1613), vbFromUnicode, 1025), vbUnicode)

Simply allows placing a string stored as Unicode into the textbox on a computer using any locale. If this trick wasn't used the string data would be processed using computer's default locale thus resulting into question marks when hitting characters it does not detect.

What happens here is that first Unicode string containing Arabic is turned into Arabic ANSI string. Then it is converted to Unicode using "incorrect", computer's default locale. However, when this string is given to VB6's textbox an automatical Unicode to ANSI conversion takes place. The resulting string is the correct Arabic ANSI string and it then displays correctly (as long as Font.Charset is correct).

[bordino]

ok leave the unicode can we create a font and replace all 256 ascii character

with arabic character set the font proprity for the text box and use the font we have created

to write arabic

Arabic characters take on different shapes depending on their position in a text string and on the surrounding characters.

Arabic script is cursive. Most characters of a word are connected to each other, as in English handwriting.

Characters can be joined to form ligatures.

A character can be represented with a vowel or diacritic mark written over or under it.


Shapes of the Arabic Characters

Arabic code pages can contain from one to four shapes for each character or ligature, depending on the implementation.

The four possible shapes of an Arabic character are:

Isolated
The character is not linked to either the preceding or the following character.

Final
The character is linked to the preceding character but not to the following one.

Initial
The character is linked to the following character but not to the preceding one.

Middle
The character is linked to both the preceding and following characters.
i think 4 variables needed and checking the left and right position of a character and matching them with those key in vairables and replacing them when needed

[AsmIscool]

I may have no idea here if this is where your problem is but try some pseudocode.

if previouschar = " " then 'initial or isolated
   if nextchar = " " then ' isolated
      else ' initial
   end if 
else ' middle or final
   if nextchar = " " then ' final
      else ' middle
   end if
end if