以及让用户在其中输入字符同计算机进行交互对话。首先在选VB菜单中的 Project | Module 项向工程文件中加入一个模块,然后在这个Module中加入以下代码:
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 ´建立一个控制台窗口 SetConsoleTitle "VB Console Example" ´设置窗口标题
´获得控制窗口的句柄 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--> "
´获得用户名 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
选VB菜单中的 Project | Project1 Properties项,将Startup Object改变为Sub Main,然后运行程序,程序就会弹出一个控制台窗口,用户可以根据控制台窗口中的提示信息与程序进行交互对话。
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