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(1)不用登陆进系统即可运行.
2 G# L% r9 M) K1 k1 g (2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的.
7 c/ Q2 }8 X% X1 ?
0 ~6 t, x5 o) ^ 笔者在2003年为一公司开发机顶盒项目的时候,曾经写过课件上传和媒体服务,下面就介绍一下如何用Delphi7创建一个Service程序. ! u0 T1 |5 |# i" r( h2 I' x
运行Delphi7,选择菜单File-->New-->Other--->Service Application.将生成一个服务程序的框架.将工程保存为ServiceDemo.dpr和Unit_Main.pas,然后回到主框架.我们注意到,Service有几个属性.其中以下几个是我们比较常用的:
O3 @6 Z" Q* j. B/ i# L* S# A
* p" g6 w' b a; u6 F (1)DisplayName:服务的显示名称 + y! Q$ d) M0 M9 \3 X0 F0 J
(2)Name:服务名称. 8 a& S# i4 J3 z8 R- K' P
- k7 p* Q3 F8 b( p1 G0 r; n
我们在这里将DisplayName的值改为"Delphi服务演示程序",Name改为"DelphiService".编译这个项目,将得到ServiceDemo.exe.这已经是一个服务程序了!进入CMD模式,切换致工程所在目录,运行命令"ServiceDemo.exe /install",将提示服务安装成功!然后"net start DelphiService"将启动这个服务.进入控制面版-->管理工具-->服务,将显示这个服务和当前状态.不过这个服务现在什么也干不了,因为我们还没有写代码 先"net stop DelphiService"停止再"ServiceDemo.exe /uninstall"删除这个服务.回到Delphi7的IDE. 9 x7 h" D% n `' [$ n/ j
8 t6 w8 D' s' ^* }# q( i 我们的计划是为这个服务添加一个主窗口,运行后任务栏显示程序的图标,双击图标将显示主窗口,上面有一个按钮,点击该按钮将实现Ctrl+Alt+Del功能.
7 L, s0 K4 [& O* {: v
% F- D$ u( A! b! o: p l 实际上,服务程序莫认是工作于Winlogon桌面的,可以打开控制面板,查看我们刚才那个服务的属性-->登陆,其中"允许服务与桌面交互"是不打钩的.怎么办?呵呵,回到IDE,注意那个布尔属性:Interactive,当这个属性为True的时候,该服务程序就可以与桌面交互了. # X3 o/ Q- D! D, l; x
9 _. A+ }1 h" w$ a! s File-->New-->Form为服务添加窗口FrmMain,单元保存为Unit_FrmMain,并且把这个窗口设置为手工创建.完成后的代码如下:
4 A a3 t; K$ m$ P: c d- _/ c! d. j( G
+ V' r+ b5 F0 A0 E- q4 C0 H/ Lunit Unit_Main; $ _5 R* e8 \5 s
n+ d" ^# |) P* M. `, qinterface 0 c' V, D8 \5 p0 I/ j
9 A% s9 X3 l% O, c0 o
uses ( N: y( `$ P- D4 P
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; : e' D/ Y w( m' y) B( P% K5 y
5 ~$ p9 z- Z2 H$ W9 V* ^& U" Ztype
6 y) X0 r# K- b/ I5 T. F. uTDelphiService = class(TService)
3 S! X9 k! b% C- E* F6 C/ bprocedure ServiceContinue(Sender: TService; var Continued: Boolean); 5 m8 u! z2 G. [/ m6 g! |" x. A
procedure ServiceExecute(Sender: TService);
+ L: P/ O; T7 y2 O/ K2 Xprocedure ServicePause(Sender: TService; var Paused: Boolean);
% y) E1 U/ w; Z. {procedure ServiceShutdown(Sender: TService); 9 Y* ~; W) V" x1 j3 a
procedure ServiceStart(Sender: TService; var Started: Boolean);
. n3 P% S7 p" O1 Yprocedure ServiceStop(Sender: TService; var Stopped: Boolean); ( m& k; v- n, n) l: K0 s2 k
private
# h! X5 k' F3 x& H{ Private declarations }
" u: J+ U4 Q# v0 o, jpublic
* R% l5 z2 h7 t& y/ v# n3 jfunction GetServiceController: TServiceController; override;
5 k' V5 S- [* q: a; K( l: R* ~{ Public declarations }
R* s ]! z; Vend; & K% V8 J: s5 L
# l' Z6 K* N c, i8 tvar ( B0 c3 x* T1 \8 P4 E
DelphiService: TDelphiService; + i9 X2 t7 K% c/ E
FrmMain: TFrmMain;
% t! M0 |/ l7 [) H+ @( ~implementation
+ [$ X, }- i y2 v4 B
9 V# N. b, O F. o& G- t( R) A1 k3 X7 @{$R *.DFM}
+ U: @5 a/ s' z: Q ^
; a1 i7 ~: O" e: Y' |" mprocedure ServiceController(CtrlCode: DWord); stdcall; 8 g% C) e% g7 ~2 P( k$ J
begin T7 }( k8 O" M& y0 n) s$ R
DelphiService.Controller(CtrlCode); , L) X! H% o$ ^
end; " c2 o5 h( [) I( ^+ f2 G) C
; K3 G' r! V3 x' M- Efunction TDelphiService.GetServiceController: TServiceController;
, h+ n3 b1 x3 N- T, h8 T. B$ bbegin . L8 Q, `5 n* [
Result := ServiceController;
# Q. A9 [5 ~5 ~" d3 f2 q2 eend;
c' {: m5 q; C1 y
1 ]8 r d8 C+ `+ P) o8 ~. fprocedure TDelphiService.ServiceContinue(Sender: TService;
0 R' X) O( [. Ovar Continued: Boolean);
! `# `' f/ X! W- j, ?6 g% O% Ibegin b( \& H: z1 l+ K' L; w' z% C
while not Terminated do / t$ X9 Q- p ~- w+ T- C _* x) k
begin
0 w+ b0 \* S% f0 w1 q# SSleep(10);
% l l4 K7 q1 F J3 D# y' k) MServiceThread.ProcessRequests(False); 1 m! b; I- s& b" v8 e1 L) Q3 z
end; . z2 Q# u, a9 j) ?1 T9 }( ~
end;
( r+ G* X+ U0 M* V d
$ {: I4 r Z$ c, Eprocedure TDelphiService.ServiceExecute(Sender: TService);
5 ^9 x. g& X6 \begin / m2 d: h) V2 c2 `5 y) g6 _
while not Terminated do
- }) n0 \% [: Y+ V: |0 x; ?/ ibegin / U7 u; h1 }$ ^/ B4 d7 B
Sleep(10);
% | n8 X! c* y$ r% i2 @ServiceThread.ProcessRequests(False); ! ~9 A: ^( ?. T, y2 {% n- y7 K
end; W+ a; n/ E( ?6 ^
end;
- x$ ]" `( a! u+ H, s* x7 D: O }. j+ G* g
procedure TDelphiService.ServicePause(Sender: TService; + c+ c( \0 J' b& a, H
var Paused: Boolean); * z7 P9 T! K$ R) K
begin
' I; |( U3 y; K" C& v0 F! ]Paused := True;
, g: D* a2 v s6 x n' h- Pend; ! P, h1 f3 }& t, F3 h/ K4 i
7 V9 j! U1 L6 c' F6 F& ?: lprocedure TDelphiService.ServiceShutdown(Sender: TService);
9 G7 T+ z) g. W Y" @5 Rbegin 7 K, s q8 I A' D6 Q/ ?
gbCanClose := true; ; j2 \. o& v- ] H
FrmMain.Free; + {! \+ \; J# a. N
Status := csStopped;
: { o! j5 _, J2 j7 {, lReportStatus();
6 t; q T/ |+ i' ^; w7 mend; 5 L' x+ d) w7 R* D T" C3 A1 C
* |$ ]. g/ d5 w! U9 W6 A, _. ~
procedure TDelphiService.ServiceStart(Sender: TService;
3 ?: t6 K r" Y G2 m% D, a% y3 pvar Started: Boolean);
- D+ n5 ?8 W. }0 ibegin
& V2 v, H5 R4 q% Z _( B1 Q u& ?Started := True; 1 G% N9 C6 F8 g. {7 _7 u
Svcmgr.Application.CreateForm(TFrmMain, FrmMain);
- m/ W6 j: y' P8 bgbCanClose := False; ! N8 U V% A1 n0 K
FrmMain.Hide;
: U9 r8 T5 P eend; 4 {0 U8 t3 D3 Q7 O# Z& c" R
* _% Y$ q# l/ J, m" S8 G" G, @procedure TDelphiService.ServiceStop(Sender: TService;
/ ?- Q. b+ f2 e% Xvar Stopped: Boolean);
* g; }: G" K# z8 O& sbegin 7 n$ Y7 m/ Y8 p# W) ?* ]* M( l
Stopped := True;
5 @ s: F# H( p4 c4 s# agbCanClose := True;
- e6 q- Y I# F# J$ D5 PFrmMain.Free; + K u% L$ U) Y7 t" D
end; + q y1 e- e+ `& F( ]
0 P1 G! {: R% v s, v4 U2 i
end.
7 `- E1 a8 h+ _% X: F. P- K
+ ]8 i0 _7 _$ T0 z
) Q$ G* v7 y) }主窗口单元如下: # c! H K! H5 |( z1 i/ V8 R
$ G& d f& j6 q3 I' Yunit Unit_FrmMain;
- k. i0 M% ?) N% I( g3 O# [$ G5 B( @
interface
, D W' x2 V2 B( t0 {. I% m: S" [" _# ~: J" Y. D. \% P. {1 l4 w4 y
uses
2 C/ ]% n# |' XWindows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, 1 u! F; X8 m2 g. F# Q
Dialogs, ExtCtrls, StdCtrls; {0 b( a* M# ^# ?$ v
' O+ T: H0 G2 s0 j$ J& mconst $ h; @+ ~% ^: }+ Y1 G0 R( d
WM_TrayIcon = WM_USER + 1234; * f6 v( t8 ]0 p0 ]8 o* g# T
type ' `, C- P) D/ @/ j" o+ m
TFrmMain = class(TForm)
% S- a9 ~6 ?8 f/ \) D: L2 x/ x# CTimer1: TTimer;
0 V! b! v# l& [( L9 A+ r- mButton1: TButton;
" Y, |$ n/ D% ~6 r; l+ c) V5 |6 Uprocedure FormCreate(Sender: TObject);
/ m4 K. H5 g9 \( Yprocedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
& X6 R4 y4 O8 H, S5 ~1 R- Qprocedure FormDestroy(Sender: TObject); - n' o' k: V1 z! g; e# e2 d! f
procedure Timer1Timer(Sender: TObject); # a4 P: {! X" G
procedure Button1Click(Sender: TObject); : T' D% \6 D, a# e# G
private ! v) P) l) {/ z4 U9 N+ d% X
{ Private declarations } ; K$ D% O; s/ O# M! d
IconData: TNotifyIconData; 8 o* b% o% T8 K6 k
procedure AddIconToTray;
/ e6 b( p9 f! I" y! Q, |/ C, P2 b4 kprocedure DelIconFromTray; ' H+ f& s% v# L; k3 G. W0 r
procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
1 }2 K3 L2 h$ Mprocedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND;
5 G5 u- D* h6 f7 hpublic 9 L7 V" g: S$ C5 ~# p
{ Public declarations } : O b8 M/ k4 L& b
end;
5 W5 I; r- p# `1 {- D9 x; O+ Z! m( o: F( [7 d2 o2 ~
var
" e. G! h! t) q* WFrmMain: TFrmMain;
; k4 {5 J8 W% r! R; s- JgbCanClose: Boolean; ) V: \. y: Q* T
implementation : Y, p* o. F! W( s* R. d
8 M, ]( _& Y5 a( D+ u/ j{$R *.dfm}
* d( {" U" F/ C: b8 z+ y1 `# `7 D0 {7 J# S4 h% }. K% Q
procedure TFrmMain.FormCreate(Sender: TObject); # s! [) j9 u4 R/ `: h/ g
begin ; K0 y% _# p9 X' I" x
FormStyle := fsStayOnTop;
: [$ V; o( R; R/ E! _8 rSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); $ F( o9 P% ^' l4 W+ F
gbCanClose := False; % N9 A- I% D4 j9 X
Timer1.Interval := 1000;
. P2 C; b+ u- t% i0 Y4 k& e' Y1 l- v: o# xTimer1.Enabled := True;
+ k4 V* c8 a3 m5 u P, ^end;
t1 @* I4 h7 Q3 U( r' \
t" v+ x% \% U6 d- Bprocedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
Q9 A8 G2 ~' o! C6 @2 y5 dbegin
+ ?& j* t9 \' z0 TCanClose := gbCanClose; & h4 C/ [3 y/ U& B7 j1 t
if not CanClose then 9 O. {; X/ N' ?2 a. H. @. I' X
begin ' p- a- n; o8 L: O# g
Hide; ' [, G: \* k0 m! k/ A
end; 9 t2 O) t/ k- s" [8 N
end; * w- X& i% S3 k( I% F& S) [
3 D) I e+ U7 Z0 u) aprocedure TFrmMain.FormDestroy(Sender: TObject); / U* G5 k( A: u) f P- q @# |
begin ! t; N4 Q9 |3 q& J; W+ z0 u
Timer1.Enabled := False;
9 G8 v: M0 z7 q" j) P$ d5 hDelIconFromTray; 8 z$ }" `1 ]) X8 I) f v
end;
. z! n, ?) L& P! x9 k5 I8 `" z4 Q
procedure TFrmMain.AddIconToTray; ; R6 H9 }+ V1 C) k1 Q
begin
( u8 g2 Y M6 J% T0 k n OZeroMemory(@IconData, SizeOf(TNotifyIconData)); , E9 h' b9 I+ I: t, [/ L8 J, E
IconData.cbSize := SizeOf(TNotifyIconData); , \6 X& i7 z6 G2 Y* w, c( `
IconData.Wnd := Handle;
( C2 G( z; o( u8 J7 j h/ O CIconData.uID := 1;
& L/ I) g# `* i9 {0 M4 `/ S# A8 jIconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
' I1 ?/ Y! K& N- \) m! Y. pIconData.uCallbackMessage := WM_TrayIcon;
@3 r8 z4 ^: G& @ PIconData.hIcon := Application.Icon.Handle; $ G# x9 v1 {* C, V
IconData.szTip := 'Delphi服务演示程序'; ) _; u; I4 }. a+ @- Q& ?
Shell_NotifyIcon(NIM_ADD, @IconData); ; l" }2 ?* q$ O. e: z) R
end; , l6 C" z: |8 V" A
# y4 I9 O ~% d
procedure TFrmMain.DelIconFromTray;
0 P2 ]3 X. O. E0 x/ Rbegin
# I( N8 M- y7 T4 @Shell_NotifyIcon(NIM_DELETE, @IconData); 4 {: ^" K8 {( I2 n; }, P* ?/ ]
end; ' r! K+ R. |! S: X
2 [! ^& E9 N4 p0 `) |- P. K7 d5 Mprocedure TFrmMain.SysButtonMsg(var Msg: TMessage); 6 R8 v5 y* g/ W$ J: u
begin 0 M4 G1 @5 n$ c' K
if (Msg.wParam = SC_CLOSE) or ; [" X' E9 `' q- u& M- _
(Msg.wParam = SC_MINIMIZE) then Hide 1 _# R8 e9 U' D! ]% J7 V0 h; C
else inherited; // 执行默认动作
9 s/ H9 C* G1 r, ~7 |& Y) Q6 ]8 gend; ! }* k" B8 _- T2 O& r
5 { c, t' W+ P2 B" d$ bprocedure TFrmMain.TrayIconMessage(var Msg: TMessage); 8 z# z1 r* i) V" s1 H, m, s
begin
( [1 H$ \0 V0 o5 zif (Msg.LParam = WM_LBUTTONDBLCLK) then Show(); ; b' R% t; t7 s
end;
. X5 J% ?0 T1 |) P7 Q
) _+ ]* R, B. k& X5 Y4 Jprocedure TFrmMain.Timer1Timer(Sender: TObject);
4 d# f7 ^" c" K7 a+ ^% \" Rbegin ) b# y% E7 Z; {' J e, N% i- w/ m
AddIconToTray;
' J1 c; f" _7 x g- J; Eend;
2 i- z& p+ R Z8 h! o2 I1 u0 w6 G& l& W+ \7 D- F
procedure SendHokKey;stdcall; $ y( @! I n; O" S
var
7 ^2 j- `5 P' sHDesk_WL: HDESK; 3 b% K* H9 [ V! z Z4 K% n
begin 5 ?" F4 M+ J9 i" i* _2 {# ~
HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK);
/ H4 ]. X6 i+ n' @if (HDesk_WL <> 0) then 6 Q6 i0 Q1 d* K C9 j+ U
if (SetThreadDesktop (HDesk_WL) = True) then . T+ b" } V- i; n
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE)); 0 o( @: G5 V' ^/ u
end; % U4 `/ t% `0 _* I5 J6 a; ^' ]
, i. s4 F9 g% F6 k5 Sprocedure TFrmMain.Button1Click(Sender: TObject); 6 `2 _; d9 E0 N$ e
var
, j D6 I+ Q+ ?: V( \8 BdwThreadID : DWORD;
: S' X+ S7 L2 Qbegin
# W9 N6 g# B0 B9 y6 n: \* C0 JCreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
$ v4 _# }3 s/ ~end;
4 @2 i* G# a- w' o* D' o0 n! F% [3 J3 K1 F y$ G- `
end.
+ ^4 G2 O; O. t' E
6 [: `" `& G, y P0 m6 A" s1 D5 N
/ y4 N0 ]4 q4 I9 {7 y5 a# p补充: . d( ^- O2 @6 N0 n
(1)关于更多服务程序的演示程序,请访问以下Url:http://www.torry.net/pages.php?id=226,上面包含了多个演示如何控制和管理系统服务的代码.
, v& }) E7 ]$ \* M8 K4 H Y7 j) z y# ~! e, ~ \+ T
(2)请切记:Windows实际上存在多个桌面.例如屏幕传输会出现白屏,可能有两个原因:一是系统处于锁定或未登陆桌面,二是处于屏幕保护桌面.这时候要将当前桌面切换到该桌面才能抓屏. t4 Q% Z: _3 {
& z$ V) c5 ~6 c' n& D(3)关于服务程序与桌面交互,还有种动态切换方法.大概单元如下: - Y* ~ |& B& u ^
unit ServiceDesktop; 4 ]7 _5 R. k0 W8 G( h% _# o
1 \' U6 L( @- f& _ |6 Binterface ; ?1 O; w; J* x! B# z+ z" B" g
/ o) a+ _7 ?( ?, x% w
function InitServiceDesktop: boolean; - V) ^# L6 b) t
procedure DoneServiceDeskTop;
, M8 T" M. W9 C, g7 x/ V3 D% a
0 S M+ f4 S" x9 k* ]) pimplementation ( S7 _. q& P. i
. p$ j a/ I3 x7 d) U" D0 `1 f2 puses Windows, SysUtils; - V+ x4 P B- f+ C5 n8 `- _
4 j# {! X9 y8 g; Z: Zconst 0 V8 p8 y3 r7 X1 |0 h; ?; y
DefaultWindowStation = 'WinSta0'; . j+ P9 T/ L9 B V8 Y# b1 v( `
DefaultDesktop = 'Default'; ) }! c8 D! Y! B D6 x
var
- A8 ~$ p% r& ShwinstaSave: HWINSTA;
/ R) o2 W) z$ w3 C4 c+ N. chdeskSave: HDESK; 2 C3 Z7 c- I' g; r+ i
hwinstaUser: HWINSTA;
9 M' P" Y% z; m6 T! e! u$ k4 DhdeskUser: HDESK;
+ B o$ K/ f* t) Gfunction InitServiceDesktop: boolean; 3 `- l1 i7 P( Y. V
var
+ R+ `' \, [. M) OdwThreadId: DWORD; ! Z; a. `: C" U! b$ Z
begin f; W: U# n5 {# \' ^* a; [
dwThreadId := GetCurrentThreadID;
8 m/ @1 O/ D% M# L; \( S// Ensure connection to service window station and desktop, and 6 B- y7 N( N/ b$ I" T
// save their handles.
8 u6 ]4 ]7 X) K8 Z: ^3 p/ ghwinstaSave := GetProcessWindowStation; 4 _+ ?) E5 s* E" F& c" K% B
hdeskSave := GetThreadDesktop(dwThreadId); 9 x1 l" ]! K6 N1 F5 |* f
+ w1 o6 v( x' _$ I2 I/ K$ @
9 I3 U2 j8 C n3 ZhwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED); : r% g5 c) h/ \7 r2 k# c
if hwinstaUser = 0 then
' E) T" |: `* v' rbegin
8 ^9 _ w- g& f* O6 d& I! B0 BOutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); " R% ^6 d" U9 |& s* ~6 S
Result := false;
- N0 k. T* x* M7 }3 Z# B$ g! Z6 zexit;
4 G3 C; B9 p" M* s' ~0 c5 u9 m# qend; " s( l( d2 A$ Q1 W
8 O; b P! a/ t6 g
if not SetProcessWindowStation(hwinstaUser) then $ F: I0 p) U* W) L0 f
begin 5 v2 ]' w' Y, h+ G4 v
OutputDebugString('SetProcessWindowStation failed');
8 c1 {9 |% x$ q3 q: ^2 k" fResult := false;
) `$ J& _# a( O A" K# iexit; : j3 v* Z( [2 k9 D! h$ j
end; & G/ n, ? g" L0 k+ j4 Z" a
, Y4 `: l, J9 J; o0 N# R3 d
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); 6 f' A7 p% ^& L
if hdeskUser = 0 then
3 b1 Z8 Q, \8 G* l, |begin
. K! A. h* E8 Y( d+ p7 B% V2 U I& k& K" jOutputDebugString('OpenDesktop failed'); 4 D t% w# F; t0 O+ b ]
SetProcessWindowStation(hwinstaSave); 0 W5 c/ g/ Z( T5 H. G# q
CloseWindowStation(hwinstaUser);
P: C3 s' z: y" F7 V* h+ ZResult := false;
& o- S) @& w2 Z; v' Hexit; , y1 V. Z, y% ^
end; ' l b* B/ [+ L0 G
Result := SetThreadDesktop(hdeskUser);
: F. [3 n2 d. ~" Jif not Result then
/ q. ?) Z% ^: j" F! b: \OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError))); + u4 v2 s0 w1 i: E- E
end;
$ s' O/ v I, G; b' k( b8 P7 Y+ t' _
! M4 _( v, X6 }3 G3 g) a+ Xprocedure DoneServiceDeskTop;
# E/ R2 ~7 @( W! m+ u D) gbegin
5 _: p9 O, p: K" w/ |6 k// Restore window station and desktop.
: g) g1 e+ ?- K- @5 DSetThreadDesktop(hdeskSave); 1 D- i# o3 E; {* N2 L) L
SetProcessWindowStation(hwinstaSave);
/ k. n ?% j& L! D* x7 Nif hwinstaUser <> 0 then
$ x+ G; j7 j5 T C, vCloseWindowStation(hwinstaUser);
* t! ^1 U* k! v& ^$ Eif hdeskUser <> 0 then 1 r" T: v- h6 ~6 y! A
CloseDesktop(hdeskUser); 3 b" w' e% j8 h$ l% n, u
end;
5 A' Y: ^0 V* c+ s! x( w; u0 @3 W: E" T$ `5 _6 b; K$ {- C
initialization $ H( ]4 B! F: q' e x
InitServiceDesktop; 5 a% A3 z# J+ G6 \, i7 E
finalization
+ t& w2 O: l& _# |DoneServiceDesktop; 7 o l2 ~5 t" h G8 _8 d U
end. $ A$ u. S( X' [, c& b1 u2 w
更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip
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( u: [" |# Y j# F9 ?4 z1 T( B(4)关于安装服务如何添加服务描述.有两种方法:一是修改注册表.服务的详细信息都位于HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\下面,例如我们刚才那个服务就位于HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\DelphiService下.第二种方法就是先用QueryServiceConfig2函数获取服务信息,然后ChangeServiceConfig2来改变描述.用Delphi实现的话,单元如下:
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unit WinSvcEx;
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% i' {8 p9 C' I/ q: ?- f6 Pinterface & J) ~; Q: c" K1 A; q# L4 O% G
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uses Windows, WinSvc; % o/ v1 x" J; \8 w
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const 3 ?5 U0 G( W5 g
// 7 b' P+ c( j* [/ F3 ]
// Service config info levels ) w j( ~7 [0 r m' s! P9 r* i
// : g$ I# `0 @8 j8 x3 o4 `1 x
SERVICE_CONFIG_DESCRIPTION = 1;
) p- F# P. y2 u0 ~# DSERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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