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(1)不用登陆进系统即可运行. 4 l( T* c+ h8 B- @; ~! Y$ o
(2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的. % q/ M: d8 Y' S# i. f6 k" z5 T6 ^
7 Y% D+ i1 u& ?/ E 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.
M( g4 k# t, T' c* ? 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: ; H0 o! r! O. p, ]* r( h: b4 p' s
- [8 t- { s0 c; Z' `, p2 P- R
(1)DisplayName:服务的显示名称 7 @" n* e+ j" w
(2)Name:服务名称. ! f" E+ D9 |2 p
, F! Z% D5 o1 `* s$ _) e 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$ p- M. K; I
, T: d* F2 `4 `: N+ K/ h+ O- o& ] 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 L4 d% X/ P4 k( q; {( {, i, K, x \) J2 N
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. 2 Q( ^; |; A: S' _2 O4 z
2 E7 n; U' G5 B 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:
# t1 ?/ z% }. [0 S" y5 P* c
/ Y @0 t+ D! ^: Z* z* {, Z5 p& R0 r" O4 H4 K- ]4 Q
unit Unit_Main; : F. m2 h1 v# ~! e7 Y- q" b
/ D3 j8 I9 k7 O) r9 A
interface
- K4 T" P; c( c% [8 P- x/ z' U z# |5 d) D
uses
7 A% i: @; o: W. TWindows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; $ K) H' c p' Y& L- v) w- l! y
6 S% {0 \7 c; ytype ' z, U; z& S$ V
TDelphiService = class(TService) * W: C, t+ Z+ U5 o, V
procedure ServiceContinue(Sender: TService; var Continued: Boolean);
) L( E0 s4 F3 z! B! [4 Uprocedure ServiceExecute(Sender: TService);
2 V1 O6 H" C( P' l9 g' Z! [procedure ServicePause(Sender: TService; var Paused: Boolean);
7 a' m% o. g, C5 K) }+ r5 B) q& j% A; ]procedure ServiceShutdown(Sender: TService);
9 Y; i. j1 s- c' s) Hprocedure ServiceStart(Sender: TService; var Started: Boolean); 9 ?8 j3 j1 q2 v O4 b6 \
procedure ServiceStop(Sender: TService; var Stopped: Boolean);
G, [9 J8 ^8 }: N/ bprivate 6 Y) m& {, J3 ]2 M( I
{ Private declarations }
$ S- g$ l8 N. y. |public
2 c0 w% w7 D% ?' r) [# Yfunction GetServiceController: TServiceController; override;
8 H2 V2 B% x3 l: e( M& f{ Public declarations }
- r' e E# I/ r/ n' x/ tend;
0 r8 G8 E! L0 K' g3 \- \8 o) E/ C, v* x
var
0 T0 U ~4 J) _. E! l0 f& jDelphiService: TDelphiService;
. j$ T; ?) Q) z7 \FrmMain: TFrmMain;
! x. G8 i0 F- W( vimplementation
! r' ?. l0 \& _: X3 \
$ r" K5 u: `0 o6 Y9 l( l) e( y{$R *.DFM} & R; s/ C% R1 ]4 A
& B% L6 T' ?7 y* eprocedure ServiceController(CtrlCode: DWord); stdcall; - s4 [ F7 ~+ B3 f
begin
5 m7 ^4 @2 `3 W) EDelphiService.Controller(CtrlCode); % M# i5 s; L' I2 d$ S! S
end;
8 |( x. D- p3 o- q1 T" X! [' s
! l5 N9 K: E/ Z( B; t5 Z" Dfunction TDelphiService.GetServiceController: TServiceController; ' g' S0 k- ~- | @
begin
/ I3 h9 f0 s5 K& S3 x8 VResult := ServiceController;
* E4 N" O2 A% ~$ ?0 gend; * C6 w7 [+ c" \6 `$ F% z% {5 K
* C6 c* w" L& hprocedure TDelphiService.ServiceContinue(Sender: TService;
5 J9 m% n, U) H0 F6 H5 Bvar Continued: Boolean); 0 ^3 A% T, _# I; H
begin & z6 [# Z7 R. `3 `- u
while not Terminated do , l. L7 B$ R* a7 o
begin % K' I* b( {2 F1 l+ @
Sleep(10); ' `5 |+ k" K' q0 m2 G4 x5 k
ServiceThread.ProcessRequests(False);
# ~! d1 h- [, W- [* Fend; # i! a o% Y& |' Z& V- A
end;
0 Z: o: n; k! d* t+ u: J8 i
$ @$ O/ l( Z/ _( iprocedure TDelphiService.ServiceExecute(Sender: TService); ( T) A9 t1 k+ @2 T& g+ I5 k* _ ]
begin
8 ^0 x+ x: W8 {: T- gwhile not Terminated do
+ B+ F9 [$ I7 i% m% e* f1 ?3 G# abegin
1 v B" y& g7 \ S/ RSleep(10); " p$ m5 `% e+ B, g
ServiceThread.ProcessRequests(False);
+ z" ~- F! Z+ I" e" @* Cend; # k7 a$ i4 H$ R# g6 v1 N
end;
z( ?; A& Q& u) `9 L$ t8 C: q+ D
: V* d, N$ w7 c; w9 z8 b2 i( o3 ~) Wprocedure TDelphiService.ServicePause(Sender: TService;
! Y7 L1 w8 |8 k; Y( k9 [var Paused: Boolean); 8 q, `3 i( j/ Q
begin
1 l* V3 V5 F( l+ p9 lPaused := True; : A) a {; L* a) C% R9 j: n
end; . l) K+ w1 D4 ]
$ O# U+ Y8 D) ^, h/ R7 Sprocedure TDelphiService.ServiceShutdown(Sender: TService); ! v2 S+ v% p; L# L
begin
~+ }$ K* O$ qgbCanClose := true; * S& {2 ?9 J7 \1 k
FrmMain.Free; 2 Y& e$ y8 R6 ~+ Z1 v2 o
Status := csStopped;
% e* V. R9 |, T9 A8 `$ b- JReportStatus(); 8 Y: Q+ Q% e3 }2 i, ?/ |
end;
( `4 R4 z9 K; N) H
3 A: h; f# [1 Z, p+ Uprocedure TDelphiService.ServiceStart(Sender: TService;
& W' N- m; P! m j/ R! i7 K: ^' nvar Started: Boolean); - o- \) x5 x. Q: I3 j
begin
. |& W: S) R! o Z/ h6 E$ dStarted := True;
) j$ Q. [9 ^$ L* M1 b' \" oSvcmgr.Application.CreateForm(TFrmMain, FrmMain); / a; T7 Z6 w! d& E$ C
gbCanClose := False;
: k* ~! p$ Q' Y: m# }FrmMain.Hide;
2 v( m6 @ S" J P0 O* Wend;
5 N( S( I/ c! [. f' Z. d, U2 ~9 Q2 A
procedure TDelphiService.ServiceStop(Sender: TService; 7 v/ x( b+ o( ?/ A! o
var Stopped: Boolean);
: k6 R/ [" ], B+ {6 c( i U; Ibegin & \1 V/ F: m2 H
Stopped := True;
+ k8 O8 @" ?5 G9 U* ^7 `7 x EgbCanClose := True; + Y' r P; n+ ?, {. E
FrmMain.Free;
5 f, v0 w5 g5 N% ?1 wend; 3 T+ F0 s0 g) a. A$ S: b
1 b( @9 ?& X2 y8 U7 o
end.
t: L' y* {6 T- H; `, l6 F! V
& ^. b+ W3 P3 S$ M/ A/ i# Z" U4 m1 [" ^- W, y1 d
主窗口单元如下:
( e1 X/ h; W) ^
: j3 D$ o! Q. l. M8 J& aunit Unit_FrmMain;
' k- y) D$ I) Q+ N: v" ]3 s+ ]# `8 \
. o" }8 A' H+ B7 o% pinterface
' a2 |( A, P/ E: W Y/ \2 C4 H+ a6 M0 T9 l
uses
2 D1 }3 M6 X# tWindows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms,
- a3 D# X0 U p1 a* c) m8 SDialogs, ExtCtrls, StdCtrls;
( V* G. s- B3 y4 ]; d* f1 `% d
& w' p; T8 V6 C2 t2 Vconst
) U9 Q" Z' ?, Y1 VWM_TrayIcon = WM_USER + 1234; * X+ m' t3 p u* a* a& M3 b
type 4 W5 ~: J% {+ T* M
TFrmMain = class(TForm)
1 c) F& X1 ^* T: l/ g# P+ ~Timer1: TTimer; % d! O& `3 R. r: j
Button1: TButton; 8 H$ v( f0 E2 w! c) w6 V
procedure FormCreate(Sender: TObject); - J0 F6 Y6 f8 {# M1 m9 Q" N2 w
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
$ z, r _. @. j) D" _+ _9 Mprocedure FormDestroy(Sender: TObject); 5 B8 U; x* O+ L U$ ^7 y* D
procedure Timer1Timer(Sender: TObject);
9 |$ t/ Q" d7 ~6 M9 Yprocedure Button1Click(Sender: TObject);
: t8 k; R& D) M6 C. S) Lprivate
$ ^ Q/ X7 U7 Y ]{ Private declarations }
+ ]4 L& D% T$ G! V, p- NIconData: TNotifyIconData; / {% b: {7 e' S- ?% l; s! o
procedure AddIconToTray;
: N& `. t6 w$ f3 N9 cprocedure DelIconFromTray;
; {: p2 ?% t$ U. c+ [procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon; / H# o3 T5 P J; A) @9 h
procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND;
' V% X) a6 p! J9 F* d& v* |public ; U5 n0 ~( X: V6 m3 S
{ Public declarations }
. W# o8 ]+ N4 X. `. a2 ~end; ' [9 `% L L( a3 W1 d s V- ~
, ]: m2 v2 J' ?) r+ I
var ; V1 U6 x z* `0 K7 T
FrmMain: TFrmMain; 9 @# s/ p7 T: A+ e; P9 ]# l
gbCanClose: Boolean;
; O1 U! S0 ^# a9 }implementation . X: U. h$ C% }* H; G
! _3 q- g- L& c6 Z, f# E
{$R *.dfm}
" Q }6 o" Y9 `$ |
6 t6 w) n, ]. r- f ~% ~* Hprocedure TFrmMain.FormCreate(Sender: TObject);
# X- N4 b% s, B8 mbegin
% t& m) l" Z9 f. i/ O! pFormStyle := fsStayOnTop;
* q, |4 i& q0 C4 k$ aSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
8 S- g- K& O" x- ygbCanClose := False; , N. Z/ ?2 A# `- f& A) d
Timer1.Interval := 1000; % Y0 P9 |3 l& [% h: O
Timer1.Enabled := True; & o+ P+ M, K. g. ]/ v4 p7 N
end;
. s+ n6 P- H% T+ t
8 ? Z. D6 R4 [+ Mprocedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean); 5 A. D" j$ }: o
begin
! A2 x. M! ?! ~CanClose := gbCanClose;
$ x) E0 R% f1 _" D1 _% @if not CanClose then , X, n: m: ~4 y9 k+ W
begin 9 a0 K' s: U) F. c/ i* v
Hide;
# N6 B% ~- d5 h! c6 o }. N n( {end; ! n7 c$ t7 C$ \: H' c
end; 0 X+ I' l# [2 S% p& E
; G& l- s5 l9 l; b7 K2 d
procedure TFrmMain.FormDestroy(Sender: TObject); ! S, }' ~6 A% I3 V
begin : m- {/ P& \- ]8 E
Timer1.Enabled := False;
0 G9 U* `0 f/ w# U' B+ ~ `DelIconFromTray; 7 t' q% `9 r. s7 [
end;
/ }- p9 r2 V g% E! m& a, p
1 }2 B' [& m Oprocedure TFrmMain.AddIconToTray; 5 S5 q7 x: h& f: g
begin
. v: q( c+ t5 G; J* v4 P, N3 OZeroMemory(@IconData, SizeOf(TNotifyIconData)); 9 J( ]" j) G0 B) M4 Z3 @% |9 S
IconData.cbSize := SizeOf(TNotifyIconData); 3 h7 k2 ]) t4 D0 w, z) s" W X2 c
IconData.Wnd := Handle; d8 d3 x: }* }" ]' i
IconData.uID := 1;
, f. ^1 e2 @, i5 p, RIconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP; 2 t$ O% ?) z2 w+ R+ Q8 \
IconData.uCallbackMessage := WM_TrayIcon;
5 i5 G& s5 o3 C: \" I: n) D3 QIconData.hIcon := Application.Icon.Handle;
: D' U7 V9 C$ i# o9 w# M4 l8 n$ oIconData.szTip := 'Delphi服务演示程序'; . j% h2 n1 d" k. e: u% l0 f6 L
Shell_NotifyIcon(NIM_ADD, @IconData); 8 z/ M9 j) ~& |1 I/ W
end; . |; f6 m' g: S6 J3 C
2 [# X3 d; _ E. Q/ Z0 ?6 kprocedure TFrmMain.DelIconFromTray; & N7 T- h( Z6 q- [+ E! k: @: H
begin 6 i, t( \$ @# x1 a
Shell_NotifyIcon(NIM_DELETE, @IconData); - r! B& u/ @9 {1 V5 K& e
end; ! f. g W0 J' R# ?
6 A: w+ X7 `( j4 d
procedure TFrmMain.SysButtonMsg(var Msg: TMessage);
1 G9 ^; W. J$ w' Tbegin 4 i" z+ L, {4 ?% e T
if (Msg.wParam = SC_CLOSE) or 4 a" Y) [1 I) P' v. W
(Msg.wParam = SC_MINIMIZE) then Hide ; c# Z, P4 b, d k
else inherited; // 执行默认动作
k1 a+ f3 C q( }1 n% Send;
' J7 `3 T9 R, r4 W' i: W. m3 ]' L8 z$ U
procedure TFrmMain.TrayIconMessage(var Msg: TMessage);
8 A5 Z% b. Z( k) I( V8 S6 q1 zbegin
- c: _; Z: N* e) H# i2 Qif (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
5 \3 B) ^- @& b: h+ b' B& n" b$ Dend;
. q* n; n% e% S( Y" }3 w1 d) w/ n& |
procedure TFrmMain.Timer1Timer(Sender: TObject);
, Z* ^9 x Y5 |0 x, {begin
$ V* G1 M; G4 l& k1 K4 p* z: `' q! x4 g3 YAddIconToTray; 7 g) Z* W7 \7 k7 D
end; 7 c3 `7 I- w0 _# J6 @# }
4 P2 U; c, J$ t# ?9 [9 S0 B
procedure SendHokKey;stdcall;
0 q. e% b- S0 U. uvar 6 A% r! X% P. n P! G. ~6 s% l
HDesk_WL: HDESK; D Q% F b6 Z: G% [& n- k# e# j/ u. T
begin
8 X0 s! q7 z; ~HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); 8 u" b8 A6 N5 |$ V# G* H, ]
if (HDesk_WL <> 0) then & Q6 s: e' \) l3 G5 W& I3 H
if (SetThreadDesktop (HDesk_WL) = True) then
' I& o& A6 L, R- x3 ~PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
% P N" F: v0 ^1 `& Tend; 4 q. M% P3 J# z! ?
; O) a/ c, \: t' h/ t3 y- `procedure TFrmMain.Button1Click(Sender: TObject);
3 M$ \: r2 e# Tvar
3 h6 L5 o! r! [' F, U: k% P8 IdwThreadID : DWORD; 3 u' n, b" ?" t' z
begin 3 [5 [: ]5 X/ v8 _, [9 X' |7 H
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID); ( q: S* [1 @0 \( B) X. S$ Q
end;
& X6 H* z ` z @( }+ j
: ~/ Q. j7 T0 Y0 b% Q: `& J! Wend.
, F+ V/ o4 N# K, N9 _
& M: m N* ?! i$ J$ q9 N0 \; ^7 r' }/ [4 g/ x6 l
补充: 6 O( o$ B& M% W& P" T3 j! Y2 U1 {
(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. + g2 H3 k- |9 n6 c. q0 e4 d
' V7 L) \0 ~ d/ l$ a
(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. 9 f; j3 g8 W% q! f$ n
! ]( H3 Y: e w! i(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: $ A) Y) {' L+ e- U: R/ a( p R
unit ServiceDesktop;
7 h u* X% O5 O& P( `, x( @& r7 w9 w" c+ D9 a9 V
interface
2 \+ o1 w& Q8 @0 H5 c3 Z; |( `0 g: r \+ n! e6 ?5 d* m
function InitServiceDesktop: boolean; 2 L' m' ^& ~5 n' g. O
procedure DoneServiceDeskTop;
6 Y1 E) U5 x3 G* ~/ E4 _# V( o( n/ I! C/ [- e# P
implementation 4 @/ [7 ~% k. M: o: _5 Z
7 R$ t2 q5 e/ j' v& Z6 puses Windows, SysUtils;
/ b H5 m- F6 ?
" a$ z! B3 {; @, @3 Yconst + O" q/ j' l+ M. Q
DefaultWindowStation = 'WinSta0';
- o# r$ R8 H% w; FDefaultDesktop = 'Default'; 8 P" h5 ` N7 W" Q: x
var
0 \% \5 X9 V9 _/ @' ~0 ThwinstaSave: HWINSTA; 6 S# Z* t/ P0 A5 P W3 n7 ?8 `
hdeskSave: HDESK; ; u, I8 k e; |0 Z+ V1 ?
hwinstaUser: HWINSTA; 6 v1 D( ~) \8 ?% p
hdeskUser: HDESK; 7 H# g5 |$ V7 A- T! C$ z' ~
function InitServiceDesktop: boolean; C8 }- ]/ J( x$ y6 X5 u( L
var
L1 `2 b* z, B6 D% AdwThreadId: DWORD;
7 [( }- i/ u8 ~. c$ [8 ]; p4 f0 Mbegin
! ^1 M/ U% B2 T* a mdwThreadId := GetCurrentThreadID; 4 T7 M/ e& H- M7 C
// Ensure connection to service window station and desktop, and
; ^% A# ^2 {/ y6 k8 t% X// save their handles.
H6 f( t- a/ {& u% ~hwinstaSave := GetProcessWindowStation; ' @+ d& F( {; f* x! z- A. J
hdeskSave := GetThreadDesktop(dwThreadId); " C$ _: X$ T$ r+ a+ \" E5 k4 p
1 ?& O3 [) c5 H% F! f5 I4 {( Y9 k
i% @, x7 o- ?# T
hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED); ( X# G0 m/ ]( r6 ?1 b
if hwinstaUser = 0 then
6 Y- [; q, q* G: k% b+ cbegin
! ]" x. [% h* h- _" q- JOutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); / n& c) S7 ~/ d
Result := false; & X8 e8 Y. Q( b9 O. g1 _* u
exit;
$ A8 ` y6 ~; `1 o" Y7 ^" r3 ]2 C" |end;
. v1 w/ O8 E% V2 l! \
% V' P/ q" V1 s' F; _1 S5 i7 Gif not SetProcessWindowStation(hwinstaUser) then 0 m$ p3 \. y/ I p# }, [
begin
& E5 Z1 J) K4 Y" A7 ?OutputDebugString('SetProcessWindowStation failed'); $ m& ]/ T6 a4 S
Result := false;
( ?) y2 N0 N- E) T( o! qexit;
9 n% c8 w% R* g K# E. E! yend;
# _- `) q$ w) t! q$ A/ F) D& c. Y( u, K; R; j
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); & A6 y) j! z. Z
if hdeskUser = 0 then : B6 `0 Q. I) i; s8 |2 r9 N- v" s
begin
% i: C0 U+ ?& c, xOutputDebugString('OpenDesktop failed'); 3 V5 E# J0 { L- N$ |/ ]
SetProcessWindowStation(hwinstaSave);
# @+ d, F7 e) ?$ gCloseWindowStation(hwinstaUser); 5 I6 O/ p' O ?
Result := false; ) G$ }! W- U z# y
exit;
6 b/ @- m/ r- }& _- {# w& nend; 7 Y! `6 j4 R3 U a: |
Result := SetThreadDesktop(hdeskUser);
# A! Q" Z% M7 G3 Wif not Result then
' R( U7 e5 f9 O1 Y+ sOutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError))); ( P0 `2 S9 q2 u+ ]
end; * Q. `3 \6 B8 q- P a: ~3 @
1 l0 t) }8 r- A- p6 @
procedure DoneServiceDeskTop;
, F0 e5 M6 y% l# H1 B; ^, S, qbegin
4 b7 C4 V3 b1 L% t# {// Restore window station and desktop. & m2 {' r* i2 w% I& N1 j* }$ Z
SetThreadDesktop(hdeskSave);
) ? @- }6 S. l# h% ~/ i2 ~SetProcessWindowStation(hwinstaSave); / y/ i' `0 Y, V! K
if hwinstaUser <> 0 then ) d# }3 P0 f' x1 j% e; q
CloseWindowStation(hwinstaUser); 0 h; f& Y+ B" \" ? J
if hdeskUser <> 0 then ( O7 G! t* a5 W# a3 ~
CloseDesktop(hdeskUser); ) c& ~- [ @* @- q6 _
end;
/ p! G' l! S3 e; x$ ^6 O
( }$ X9 v9 n# {# winitialization ; V7 E$ q8 D6 w
InitServiceDesktop;
* b0 N! W5 K) ?% S: Ifinalization
" ]+ c; `" y! T9 p C6 kDoneServiceDesktop; * U& j- r8 w, G3 a3 n
end.
8 r1 y0 }0 y' \& h更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip $ Q9 X5 v' q5 _% ]; S3 Q3 }
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(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; ! i& W# Y& t) |# l J! e
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interface - _* d, S7 @7 w
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uses Windows, WinSvc;
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const 3 g! D- \# P+ D: W; c# ^
//
9 `( G v R) U% u/ ^9 h5 D// Service config info levels 7 q, ^, T. {5 D* k- U2 v
//
0 G2 ^+ X9 a) n( h) n8 pSERVICE_CONFIG_DESCRIPTION = 1;
" a$ q3 U* \# F5 LSERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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