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(1)不用登陆进系统即可运行. 5 P. S" I1 h# R0 g: A% }6 z; W
(2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的. , t ^: g2 s/ o9 k7 j; k% R" [
! x( G5 {( l; D/ `- G) | 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. 8 D! J$ c# R4 z
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:
+ L; R) Q$ t) B. L/ ? @0 A+ a; p/ h' _: ~5 ^. e
(1)DisplayName:服务的显示名称 * e/ [- S. H% B/ ~: Q8 ]
(2)Name:服务名称. 6 J9 w! W/ R# O
$ b! a; B* y" P8 K2 { 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. - x! c1 v0 U7 I
1 O# ]+ \2 H6 D1 ]3 R# B. D) E7 r 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.
6 y7 v: Y) ^8 C9 g. @
/ z2 x1 w7 m- P 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.
& o$ |' d1 v; V Z6 T) X/ v: a0 h
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:
) W4 h8 `6 f; m* J4 ]- H" z/ N+ I# X) I( ^" M
$ R, E: E% T# p5 Cunit Unit_Main;
/ [6 ^7 o/ o2 T; Y3 j& G; N0 f8 R; ^' n* s
interface ; J% K& u/ s6 Z' H/ \. e% q7 g; Z
) o7 ^+ }& {) s$ @# J0 h% ~+ a
uses 5 o. k- S4 f, f
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; ; O0 ?* b6 G3 s. v* t
" e; m9 o. Q% V ?
type
. ~: k; j8 f: Z9 `& _: JTDelphiService = class(TService)
" V( J" }( O0 i, Lprocedure ServiceContinue(Sender: TService; var Continued: Boolean); / _$ u3 |$ l+ \$ x( |# {3 p
procedure ServiceExecute(Sender: TService); . X: x+ B4 f& J5 _% a' x( O
procedure ServicePause(Sender: TService; var Paused: Boolean);
# x4 a: K8 y, [5 {+ Cprocedure ServiceShutdown(Sender: TService); . R! Y" R5 y+ c% Y! l( U
procedure ServiceStart(Sender: TService; var Started: Boolean);
' j! I/ t$ x' K% T! C! dprocedure ServiceStop(Sender: TService; var Stopped: Boolean);
( o7 J6 ~- ^; g/ Zprivate
I( V# S% ~# K( |/ s9 W( @9 Z0 r% r{ Private declarations } 2 G0 g- Z, b8 P" @4 N+ v) V
public
8 w& m5 @ j) p- n4 d& `" hfunction GetServiceController: TServiceController; override;
7 c3 {6 k8 Q& R `{ Public declarations } 0 B8 v; y* z- R. `2 O
end;
2 ` N# I3 u; I" C* I% M+ W6 X3 |5 D
var " U) t) A# ^* L4 r2 T
DelphiService: TDelphiService;
! ]& |0 u4 a5 Q( X! ~7 `5 EFrmMain: TFrmMain;
1 Z: m% x \" uimplementation
* a7 F+ j$ `6 H. K, }5 }, [/ l( T& l9 V0 E2 r& I
{$R *.DFM}
6 g( O7 Q0 p/ d5 g' u# \' W% `! R2 C6 o8 j! ?7 o! y& |4 w
procedure ServiceController(CtrlCode: DWord); stdcall;
+ g2 ~6 \6 D# V/ A8 Z+ I4 R8 mbegin , G2 J" y9 U$ U; g) T+ r4 y
DelphiService.Controller(CtrlCode);
2 [- c; n l- j. v m- I' `. Iend; $ v/ h2 {- y! _1 _
8 Q2 P0 P' k6 h5 q6 Y+ g. ]
function TDelphiService.GetServiceController: TServiceController; ' R& k( I5 k9 r9 j: {) x
begin 5 d2 A( l$ c* b4 g% [' C
Result := ServiceController;
4 S" t2 M! D' }/ Y! H: mend;
% Z5 U7 \, m" Q/ W' ?. D7 @4 ~) J) F- P& r7 a
procedure TDelphiService.ServiceContinue(Sender: TService;
, s, A1 Z5 s" c- Nvar Continued: Boolean); + ?' `8 V9 T) ~) @( s5 \+ |1 q7 j
begin
, D/ i Z! A) {8 q- Bwhile not Terminated do
8 @! d( k7 b( ?7 f5 m$ tbegin " W: |& P1 C& P3 C; }6 n3 r) c! v
Sleep(10); & M3 U- r$ g, Y( J3 h3 R3 O1 J
ServiceThread.ProcessRequests(False);
& h$ Q* Z" g/ |7 G& ?" k- r: |end;
6 s2 h0 j1 S$ Fend; ; c, N/ u) } F" y1 ]$ E1 u
1 w' a( v) _ L& Mprocedure TDelphiService.ServiceExecute(Sender: TService); : Z5 _' X6 C) A6 |% {+ I3 r
begin
5 i- O. G: m9 Zwhile not Terminated do 3 a; M; |0 [6 Y, u. u J5 g
begin , O1 x, _* s L }
Sleep(10); ' w' w3 l9 J0 h; z( F9 S
ServiceThread.ProcessRequests(False);
5 [) {( |! O. z& p) Aend; 8 D2 g6 x$ m3 o p* q' J
end;
! m) K3 B0 p g) K4 h
, z8 r4 ~" O: Iprocedure TDelphiService.ServicePause(Sender: TService;
: k/ s! [$ f7 x C8 O% lvar Paused: Boolean); * ~( t# d- l& z7 L
begin
8 R" h( A. J) b8 |: _2 uPaused := True; ) d U8 A+ h( P/ L
end; " G# f1 \+ B, S8 R
' u0 T- Y4 u& s) N" a9 r- d9 q
procedure TDelphiService.ServiceShutdown(Sender: TService); $ w/ c) Y" y+ p4 [
begin # t* i, U; k2 j9 N4 r8 H* \
gbCanClose := true;
, R- b( {9 H) o5 dFrmMain.Free;
1 W% v' O6 b$ x9 L2 \ l) B" `3 {Status := csStopped;
) A% p" _# q8 P* ?ReportStatus();
6 g) B1 |- S# A+ s g! Qend;
- M; ?$ `2 @) o3 ?1 T$ r
8 \' D* {4 G1 c7 }+ C: R' ~- oprocedure TDelphiService.ServiceStart(Sender: TService;
1 }7 F# G8 v' R1 c3 m8 pvar Started: Boolean); ) D( E- Y" i" w; I
begin
! `- ^& r: l6 A- IStarted := True;
) T9 K' n8 ?) I4 w! wSvcmgr.Application.CreateForm(TFrmMain, FrmMain);
3 c$ F4 `3 @$ d4 c' K' g4 G1 f% pgbCanClose := False; 2 ^$ Q3 e; K6 u9 l3 H3 s8 W
FrmMain.Hide; ( h- |( _( }3 O1 l# V, ?$ f
end;
7 j: U& E% Z& x, A3 |& o+ b4 e# z3 W$ G
procedure TDelphiService.ServiceStop(Sender: TService; 8 X0 ~3 n- s+ ]; V, f
var Stopped: Boolean);
! X% w3 j2 y8 W$ @begin
. d q, ^7 ?9 G& [Stopped := True; t9 Y( s2 D3 W
gbCanClose := True;
1 `- z$ Y8 y I" w1 a) U5 A; IFrmMain.Free;
" }7 m6 K; v& f* S* l) cend;
/ }: R# S' a# `2 p" I! l1 i+ a, z' [
end. 6 i/ W0 ]! p# {1 v
0 y! x% @$ u- v1 z9 n
7 ^ w R6 \! L! N+ F" n2 f主窗口单元如下:
5 }) F- o: Q1 Y! F3 q4 O( m
m& X6 G! \) L( r1 j4 funit Unit_FrmMain;
: I% B* [# ^" M9 P# m# h" b, R/ [7 a, S
interface ) E- i3 d7 @, E8 m9 T
6 {1 U* P) b* i3 Q7 z) B
uses - ?: F0 y( Q4 E+ B/ ^0 G( n: Y
Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, 3 x% Z& U( J" D2 Q8 ?4 f
Dialogs, ExtCtrls, StdCtrls;
% {. K% q4 A5 O) j& K( `% M- M, T' ^# n/ X# [
const . o e( c+ N1 c9 U! B: D
WM_TrayIcon = WM_USER + 1234; 7 ]9 P3 _3 g$ e+ ], U2 P+ [+ H
type
/ |9 _8 Y4 x8 a( ` WTFrmMain = class(TForm)
$ {* w- B7 t/ J4 tTimer1: TTimer;
: \! }! z' T: aButton1: TButton; # l' `! r. A: Q; R
procedure FormCreate(Sender: TObject); ( \4 Q6 Q/ S0 q
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
3 {' ^3 S; k8 m; C0 sprocedure FormDestroy(Sender: TObject);
, [2 N ~8 @8 \* _ E( H5 ^& Mprocedure Timer1Timer(Sender: TObject); ) I( W5 ^% S$ a7 w2 k+ b5 P
procedure Button1Click(Sender: TObject);
3 e/ @) m* z3 X mprivate
! a( ^, b6 s& }{ Private declarations } : b5 _. S" e8 R, p8 j' L
IconData: TNotifyIconData;
" X5 t3 h3 k2 Z. v% wprocedure AddIconToTray; v6 ^5 Z+ K) o: ]6 L
procedure DelIconFromTray;
9 l( _! e3 G. U6 \2 hprocedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon; + i% v! t( A6 l4 ?# o" H
procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; 9 ~, w" Y |7 J5 \- J( ?
public
0 m" s% T( d! }: k" _6 l; Z4 x{ Public declarations } 6 H& q% @# U9 Q% p% W# w7 R3 u8 M
end;
9 }) M9 P p9 c* v; k x% V0 t' P: i- N: O. }
var 8 ]3 N2 d0 E. G! U
FrmMain: TFrmMain;
" E: w- i4 `" YgbCanClose: Boolean; : F& [0 I! }! L# N& T9 g( A- ?2 |" [' |! p
implementation 5 e; {- j# x7 v) ]- x
. ]& d7 g' N) |- u$ D6 h% [, k
{$R *.dfm} 3 J2 p9 u1 O0 d* _
; |% e F+ W) _+ y( iprocedure TFrmMain.FormCreate(Sender: TObject);
9 E4 i) h+ {) r" ]( n! w1 Cbegin # T% ~- K/ X% a. z1 {5 ~
FormStyle := fsStayOnTop; . a' o; ^2 t5 a: G1 W
SetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); , c$ W4 B, g$ E* U- ^8 i Z9 }0 J
gbCanClose := False;
/ X- u1 U2 [$ N" x1 p. x! }Timer1.Interval := 1000;
5 z x: D$ U' P5 d) t' N; xTimer1.Enabled := True;
- D1 T0 q( N' Bend; , e7 e. C4 J; |) N7 d
/ B# U! A @3 H' S- Kprocedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean); ; \+ _ k& H5 }0 Y' k2 A
begin ) |; ? [. z+ o5 z. F1 z+ q
CanClose := gbCanClose; 6 X# q9 Q4 F/ }+ D, M- b" M# `8 |
if not CanClose then 5 r/ Z% h7 }: F) e1 d9 ?
begin 6 H4 z9 F2 p' S, [6 ~' u
Hide;
0 i V; o; ~+ h2 W+ G$ fend; * ? I6 d7 G& _6 G' t) h
end; / B4 P% D5 ]9 Z8 R+ C. ?
* U# @( r/ `, E S( Q g8 I6 rprocedure TFrmMain.FormDestroy(Sender: TObject); 9 M+ f3 r' E5 [$ E) |" u# l
begin . S& R p# g, n: `: h7 Z
Timer1.Enabled := False;
3 ^3 a/ U) E) rDelIconFromTray;
8 J0 W" V, ~" d9 }( A- I8 x, oend; 3 ~" K3 ?5 ~$ x
" o1 k/ O7 J9 R9 X5 B9 V
procedure TFrmMain.AddIconToTray;
0 w! S# s6 N W% J9 r: [begin
: R9 T) [) j% aZeroMemory(@IconData, SizeOf(TNotifyIconData)); ; o7 x* D2 N7 d- U6 o$ p
IconData.cbSize := SizeOf(TNotifyIconData); 3 N7 D' e6 Z; {" [4 E3 m l, B" L
IconData.Wnd := Handle;
/ Z: D9 e, P( n) j& `" S; Z: q* }: X$ eIconData.uID := 1; # F6 x' \6 S6 ~; l
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
5 e: _+ Y4 D; g3 H& _- h6 f( F5 m9 fIconData.uCallbackMessage := WM_TrayIcon;
* Y: k9 r4 C( X9 u" `5 c cIconData.hIcon := Application.Icon.Handle;
4 B3 X' f0 s% x: M' J+ _IconData.szTip := 'Delphi服务演示程序'; & _. c3 `; R: p' ]+ x
Shell_NotifyIcon(NIM_ADD, @IconData); K; M' C4 `) y& ?9 n
end; $ q& z1 [, B- M. j
$ ^' H4 s( ^7 h0 Y" N. A& ?procedure TFrmMain.DelIconFromTray; & `; { B4 |9 |% ?$ x0 f9 Z+ j# w! m
begin ' e% w. Q) F0 P: T* C
Shell_NotifyIcon(NIM_DELETE, @IconData);
1 y; i3 j r8 p& \0 `0 iend; . u0 d* F! w3 _
4 C2 E$ y$ u( y' Rprocedure TFrmMain.SysButtonMsg(var Msg: TMessage);
$ G1 g" U+ U$ _3 C- }begin
1 W; ]7 m) o c' Z' {if (Msg.wParam = SC_CLOSE) or
$ O' m( G3 ]' g0 d# q$ d(Msg.wParam = SC_MINIMIZE) then Hide 0 o& V! x# \8 \+ ?7 v) w
else inherited; // 执行默认动作 / c7 f' v% L# d2 u0 S5 {
end; ' s! ]% z: p8 x* X5 O7 t
/ Y. r% `! g& t0 F1 S' @procedure TFrmMain.TrayIconMessage(var Msg: TMessage);
( A& A4 y+ ?0 Ebegin ( ^* i/ v0 b g" o; D
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
* A* u' w& ]7 A& d* y3 mend; . w4 `) ^/ W& g. R
! S% X* ~! \8 w H- B8 T& w2 v6 Dprocedure TFrmMain.Timer1Timer(Sender: TObject);
8 X3 C M# H7 M, J8 ?2 C: ~begin " x6 K- T g4 r' D9 F
AddIconToTray;
4 v# j- n$ @, D w5 `" Nend; 7 p" _3 } L- \
# O* \+ s4 j8 A2 f& f/ C
procedure SendHokKey;stdcall; & s2 D3 M1 q }6 X) b. B H
var & r# s5 n7 c+ S; E" L- ^( d8 O
HDesk_WL: HDESK;
$ J7 W. @+ ?+ D& r0 e3 E1 s9 _* Wbegin
/ Q! {! \! ~ ?8 \4 uHDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK);
/ r, t1 C, F0 Zif (HDesk_WL <> 0) then / ^8 i* f. r4 f+ W
if (SetThreadDesktop (HDesk_WL) = True) then 6 ]! ? b& ]0 k: Q# D
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
3 x6 V& H2 Q7 H1 ^end;
, ?" b( a% Y8 j! P4 Q4 [5 b5 d7 ?* m# d# t5 Z3 w3 d
procedure TFrmMain.Button1Click(Sender: TObject);
7 n& y- A" N4 Jvar
9 @3 D: E; I' R8 Y3 D! PdwThreadID : DWORD; " H# ?! v `* c8 g n* u0 G. B- c
begin ( |4 O) @" c" a* Z5 b( `. l& A2 X6 O
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
/ R1 W) j. w" A3 zend; $ o2 S( k/ G4 z1 c* z
& [% J/ }- H8 b: d/ t! }/ |
end.
9 x& A& t3 b7 R8 P1 R3 L! _/ b" a8 _) T z
- `% p; [) ~, ^0 c, Z. o) y
补充: m' S0 v9 B5 s; Y! V' G
(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.
# F- M# {1 p) ?/ H/ @; j
5 \5 Y" f- K$ q3 H: ~# _(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. ' _3 n/ ~& h7 H
+ J: ^( f7 q! n3 J9 p(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: , r' Z2 Z' V/ V8 ~1 S7 y
unit ServiceDesktop;
- y" T* R; Z7 Q8 |+ C$ m* A; }' W8 |' |
interface ' \7 ?+ Q1 f1 w, _$ ?
- h8 [! n9 `. s' I+ a" w- S
function InitServiceDesktop: boolean; , p4 U. w5 K: b3 L
procedure DoneServiceDeskTop; 9 m4 I2 w- u" ]: c
2 _- t( y/ B( d1 c( u
implementation
$ j% h5 S& ~& D( v8 s0 U0 \
5 @/ u2 x' o0 n5 z9 `uses Windows, SysUtils; : X& f( `. Q, A& S# L
8 P9 a8 X' I7 G
const - c( N1 x" r; |* E3 Y1 a5 Y; r
DefaultWindowStation = 'WinSta0'; & X9 A# W# A, Q8 x
DefaultDesktop = 'Default'; ) I- _9 ~6 e4 `2 P9 j
var
# R3 k4 U( D. E! o4 zhwinstaSave: HWINSTA; 6 E' u" [$ b& I/ h" H) p9 x9 u
hdeskSave: HDESK; & s/ G2 {; `4 v2 U. l4 p( D/ d
hwinstaUser: HWINSTA; - ~2 m& c* M* c
hdeskUser: HDESK;
6 ~2 g4 c+ b8 H0 L2 ffunction InitServiceDesktop: boolean;
9 N, q1 {/ C: s. v# Avar
$ Z( V, O0 r( ^5 Z ^& Z6 _dwThreadId: DWORD;
0 x- _! l5 |; n5 O$ b& wbegin
8 x! x! M) j2 d) X, }dwThreadId := GetCurrentThreadID;
* f( o6 q0 ^+ i// Ensure connection to service window station and desktop, and
1 E+ s4 I; T0 p* T3 _( Y: n j: H// save their handles.
& C7 I5 w) ?3 W9 khwinstaSave := GetProcessWindowStation; 8 y- \' d) x9 v7 y" o; l% N3 ]
hdeskSave := GetThreadDesktop(dwThreadId); ' y( I2 S# u6 ^( J
Y. z- l. G- M+ R2 p. ^- O6 Q+ }9 R. L' S, B
hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
7 j/ u. [, b& q+ c2 X& |6 Kif hwinstaUser = 0 then
: \* ?- a+ h8 q1 q2 G3 p# Sbegin
B' j- M; ~0 BOutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); . W" I: F1 r; s. k6 s
Result := false; . \5 E$ K' ^1 w. {* ], U- k
exit;
1 P. q ~ F' @end;
& B$ s1 v3 _7 ?9 N# l2 c2 G' s: l& _# N* O8 y
if not SetProcessWindowStation(hwinstaUser) then 9 ?3 F/ L$ d! p$ Q) y1 E
begin / ?0 r0 ?, G% X& v. U# P5 P/ S
OutputDebugString('SetProcessWindowStation failed');
- R# o% s8 l! V4 V7 V/ q7 J/ FResult := false; + \7 u2 M" }4 u( T
exit;
. n& B( C1 E) S* n n- mend; / F [ k4 l' `
" a2 a1 v+ q- d2 q, Z% v2 D/ @
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED);
' X( m, F+ O5 S" J1 P+ V1 l( D% Zif hdeskUser = 0 then * f4 M$ P0 \& \
begin " ~: ~' j: a0 o, }7 V6 E
OutputDebugString('OpenDesktop failed');
2 P7 j5 e6 d/ f7 w$ o! I( }SetProcessWindowStation(hwinstaSave); + B* `- s1 G+ C
CloseWindowStation(hwinstaUser); % P9 t9 A: U" R" P% Z, M
Result := false;
$ X8 q7 F9 X( l# S8 l3 Hexit; - R! B7 o( v( T: p. M2 _
end;
) g5 K" o5 v% t. q( X' t tResult := SetThreadDesktop(hdeskUser); ! i' K! ^* e- y) a
if not Result then
" s) @, ?" j- ~6 ~- {OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError))); ; E# N+ V) V$ b$ |5 J
end;
/ R! `/ \, s4 S% E! J/ X! f7 F; ]- h3 o0 z
procedure DoneServiceDeskTop; ( I# o" ?4 K* j/ S) V9 h7 Q$ b
begin - ` X1 S# u5 E' n+ A
// Restore window station and desktop. ; w! F) e3 y7 T2 D8 p
SetThreadDesktop(hdeskSave); + m( `# `# ?0 j
SetProcessWindowStation(hwinstaSave); " Q( m6 j; U8 s3 l+ z
if hwinstaUser <> 0 then
" ^2 A8 `6 P8 M& f- [CloseWindowStation(hwinstaUser); / |4 B4 L) a+ m2 y' r
if hdeskUser <> 0 then * F* r" @8 k4 j ~' J( \: c/ L
CloseDesktop(hdeskUser);
) ]' S6 b# |9 a: r4 zend; ) H% H5 r0 h' w& k
! Y8 S' [2 N/ h& D' b# r* xinitialization 5 l- o7 U- t4 W: l# X! W C
InitServiceDesktop; ; ^7 p6 H6 _6 V& V' Z& E0 d! `. V
finalization
. @- O% N' h3 g V3 _0 |DoneServiceDesktop; + w% r+ j' @- M/ _$ C6 L* J
end.
/ R5 i0 c, b) K: b) K更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip
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. e; C8 v6 M4 y* g0 ^3 a/ d(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: . _2 p8 C5 @+ y/ s
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unit WinSvcEx; 0 M; \: r2 c7 f# w' G! f
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interface
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! N7 f$ d9 |9 d& }2 ]9 Luses Windows, WinSvc;
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//
5 }3 H/ Z, B& C p0 A3 a// Service config info levels
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SERVICE_CONFIG_DESCRIPTION = 1; $ g0 E1 L9 S4 M, E) N; I! N
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
zan
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