Line Counter

This counts the lines in one RTB and displays it in another

Place 2 rtb's on your form, call one of them txtLinecounter, and the other one txtMain

Then insert this code:

VB Code:

'Declaring Sendmessage API
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Const EM_GETLINECOUNT = &HBA
'Declaring oldline
Public Oldline As Integer
 
Private Sub Form_Load()
'Setting a default value for the RTB(Could do a _Change here instead)
txtLinecounter.Text = "1"
End Sub
 
Private Sub txtMain_Change()
Dim iLines As Long
Dim i As Integer
iLines = SendMessage(txtMain.hwnd, EM_GETLINECOUNT, 0, 0)
If Not iLines = Oldline Then
txtLinecounter.Text = ""
For i = 1 To iLines
txtLinecounter.Text = txtLinecounter.Text & i & vbCrLf
Next
txtLinecounter.SelStart = InStr(1, Liner, iLines - 1)
Oldline = iLines
Else
Oldline = iLines
End If
End Sub

Hope you like it, I remember having a lot trouble making this when i started doing VB(This one took 10 mins ;))

thanks for sharing, i was looking for something like this.

No problem!

You might have some problems when wanting the boxes to scroll at the same time - i'm working on a way to fix this.

Cheers!