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, EM_LINEFROMCHAR = &HC9

 

Dim LineCount As Long, CurrentLine As Long

' Число строк в текстовом окне

LineCount = SendMessage(Text1.hwnd, EM_GETLINECOUNT, 0, 0)

' Номер текущей строки

CurrentLine = SendMessage(Text1.hwnd, EM_LINEFROMCHAR, Text1.SelStart, 0) + 1