delete from textbox

how can i keep the first word in a textbox and delete all other words
then search a .txt file for that word
if found add "*" befor it

simple but how? :confused:

Here's one way of doing it using the Replace() function.

VB Code:

Option Explicit
 
Private Sub ReplaceInFile(ByVal FilePath As String, _
    ByVal ReplaceThis As String, ByVal WithThis As String, _
    Optional ByVal CompareMethod As VbCompareMethod = vbTextCompare)
    
    Dim strData As String, lonFF As Long
    Dim strPath As String
    
    'Get available file handle.
    lonFF = FreeFile
    
    'Open file.
    Open FilePath For Input As #lonFF
        'Load all contents of file into strData.
        strData = Input(LOF(lonFF), lonFF)
    Close #lonFF 'Close file.
    
    'Replace the words.
    strData = Replace$(strData, ReplaceThis, WithThis, , , CompareMethod)
    
    lonFF = FreeFile
    'Create a 2nd file.
    strPath = FilePath & "(2).txt"
    
    Open strPath For Binary Access Write As #lonFF
        Put #lonFF, , strData
    Close #lonFF
    
End Sub
 
'Test the code.
Private Sub Command1_Click()
    'Keep first word.
    Text1.Text = Left$(Text1.Text, (InStr(1, Text1.Text, " ") - 1))
    
    'Replace all words.
    'vbTextCompare so it's not case-sensitive.
    ReplaceInFile "C:\file.txt", "word1", "*word1", vbTextCompare
End Sub

Maybe you could do:

VB Code:

Private Sub Command1_Click()
    Dim strTempArray() As String
    Dim strTemp As String
    Dim intFreeFileNum As Integer
    Dim intCounter As Integer
    
    intFreeFileNum = FreeFile()
    
    strTempArray = Split(Text1.Text, " ")
    
    Text2.Text = strTempArray(0)
    
    Open "\filenamehere.txt" For Input As intFreeFileNum
        Do Until EOF(intFreeFileNum)
            Input #intFreeFileNum, strTemp
            
            strTempArray = Split(strTemp, " ")
            
            For intCounter = 1 To UBound(strTempArray)
                If LCase(Text2.Text) = LCase(strTempArray(intCounter)) Then
                    Text2.Text = "*" + Text2.Text
                End If
            Next intCounter
        Loop
    Close intFreeFileNum
 
End Sub

I think that does what you want to do without needing API.

i tried both ways but
i didn't got the star char in the file

why?

is the word in the textbox likely to be unicode?