隨著軟件的界面設(shè)計的發(fā)展，人機(jī)交互的方式同過去也有了很大的不同，圖形用戶
界面，鼠標(biāo)操作甚至語音等早已經(jīng)率見不先了。但是在有一些程序中，還是要使用到
象過去那種老式的主機(jī)——終端那樣的字符型控制臺窗口式樣的界面。而實際上，在
Windows中也保留了這樣的一系列控制臺函數(shù)，下面的范例演示了如何建立控制臺窗口以及讓用戶在其中輸入字符同計算機(jī)進(jìn)行交互對話。
    首先在選VB菜單中的 Project | Module 項向工程文件中加入一個模塊，然后在
這個Module中加入以下代碼：

Option Explicit

Private Declare Function AllocConsole Lib "kernel32" () As Long

Private Declare Function FreeConsole Lib "kernel32" () As Long

Private Declare Function GetStdHandle Lib "kernel32" _
(ByVal nStdHandle As Long) As Long

Private Declare Function ReadConsole Lib "kernel32" Alias _
"ReadConsoleA" (ByVal hConsoleInput As Long, _
ByVal lpBuffer As String, ByVal nNumberOfCharsToRead As Long, _
lpNumberOfCharsRead As Long, lpReserved As Any) As Long

Private Declare Function SetConsoleMode Lib "kernel32" (ByVal _
hConsoleOutput As Long, dwMode As Long) As Long

Private Declare Function SetConsoleTextAttribute Lib _
"kernel32" (ByVal hConsoleOutput As Long, ByVal _
wAttributes As Long) As Long

Private Declare Function SetConsoleTitle Lib "kernel32" Alias _
"SetConsoleTitleA" (ByVal lpConsoleTitle As String) As Long

Private Declare Function WriteConsole Lib "kernel32" Alias _
"WriteConsoleA" (ByVal hConsoleOutput As Long, _
ByVal lpBuffer As Any, ByVal nNumberOfCharsToWrite As Long, _
lpNumberOfCharsWritten As Long, lpReserved As Any) As Long

Private Const STD_INPUT_HANDLE = -10&
Private Const STD_OUTPUT_HANDLE = -11&
Private Const STD_ERROR_HANDLE = -12&

Private Const FOREGROUND_BLUE = &H1
Private Const FOREGROUND_GREEN = &H2
Private Const FOREGROUND_RED = &H4
Private Const FOREGROUND_INTENSITY = &H8
Private Const BACKGROUND_BLUE = &H10
Private Const BACKGROUND_GREEN = &H20
Private Const BACKGROUND_RED = &H40
Private Const BACKGROUND_INTENSITY = &H80

'For SetConsoleMode (input)
Private Const ENABLE_LINE_INPUT = &H2
Private Const ENABLE_ECHO_INPUT = &H4
Private Const ENABLE_MOUSE_INPUT = &H10
Private Const ENABLE_PROCESSED_INPUT = &H1
Private Const ENABLE_WINDOW_INPUT = &H8
'For SetConsoleMode (output)
Private Const ENABLE_PROCESSED_OUTPUT = &H1
Private Const ENABLE_WRAP_AT_EOL_OUTPUT = &H2

'''''G L O B A L S'''''''''''''''''''''''''''''''''''
Private hConsoleIn As Long ' The console's input handle
Private hConsoleOut As Long ' The console's output handle
Private hConsoleErr As Long ' The console's error handle

'''''M A I N'''''''''''''''''''''''''''''''''''''''''
Private Sub Main()
    Dim szUserInput As String

    AllocConsole    '建立一個控制臺窗口
    SetConsoleTitle "VB Console Example" '設(shè)置窗口標(biāo)題

    '獲得控制窗口的句柄
    hConsoleIn = GetStdHandle(STD_INPUT_HANDLE)
    hConsoleOut = GetStdHandle(STD_OUTPUT_HANDLE)
    hConsoleErr = GetStdHandle(STD_ERROR_HANDLE)

    SetConsoleTextAttribute hConsoleOut, _
    FOREGROUND_RED Or FOREGROUND_GREEN _
    Or FOREGROUND_BLUE Or FOREGROUND_INTENSITY _
    Or BACKGROUND_BLUE

    ConsolePrint "VB Console Example" & vbCrLf
     
    SetConsoleTextAttribute hConsoleOut, _
    FOREGROUND_RED Or FOREGROUND_GREEN _
    Or FOREGROUND_BLUE
     
    ConsolePrint "Please Enter Your Name Here--> "

    '獲得用戶名
    szUserInput = ConsoleRead()
    If Not szUserInput = vbNullString Then
        ConsolePrint "Hello, " & szUserInput & "!" & vbCrLf
    Else
        ConsolePrint "Hello,But who are you?" & vbCrLf
    End If

    ConsolePrint "Press Enter To Close The Console"
    Call ConsoleRead

    FreeConsole ' Destroy the console
End Sub


Private Sub ConsolePrint(szOut As String)
    WriteConsole hConsoleOut, szOut, Len(szOut), vbNull, vbNull
End Sub

Private Function ConsoleRead() As String
    Dim sUserInput As String * 256
     
    Call ReadConsole(hConsoleIn, sUserInput, Len(sUserInput), vbNull, vbNull)
    'Trim off the NULL charactors and the CRLF.
    ConsoleRead = Left$(sUserInput, InStr(sUserInput, Chr$(0)) - 3)
End Function
    選VB菜單中的 Project | Project1 Properties項，將Startup Object改變?yōu)镾ub Main，然后
運(yùn)行程序，程序就會彈出一個控制臺窗口，用戶可以根據(jù)控制臺窗口中的提示信息與程序進(jìn)行交互
對話。
    上面的程序在Win98、VB6下運(yùn)行通過。