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(1)不用登陆进系统即可运行.
5 f! p1 X5 k: P- [9 l0 o$ l. H (2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的. # ?2 ]( b0 {7 X# H1 w. z) d) K( _
5 i/ O& t2 J- Z* N6 j. [ 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.
# e5 L+ ?; i! | 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: ! G" P# i0 Y* J2 O
3 `$ G; z/ N4 ]" v# U/ L
(1)DisplayName:服务的显示名称 5 t; D. i2 Q7 g3 Q4 J3 z
(2)Name:服务名称.
# F6 x0 [1 \; ?- s, |6 M5 p$ J8 @- a$ N, q1 |, ]/ S- `7 z6 f& c
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.
]) k2 T" R( d6 v; e0 I
r5 O/ k2 d1 n5 _ 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 L! g8 N5 d1 k# L# e1 c
! i$ T( `9 b- P- d2 k3 A+ G6 X! Z 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.
' w0 ]& ~% p; Q8 E6 ]- i! t7 @+ |
; ]: t- L8 f+ }% N2 v/ \6 p; _2 } 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:
, @; q& l: m) |" [& E8 V# _; _* m9 ?3 j2 K2 Z$ C
3 C! _" W" ~5 s6 z0 l$ T. {6 [
unit Unit_Main;
2 n1 i d: c2 V7 g+ J& K
( }: f9 p4 ?+ E" Rinterface 0 v% \2 [$ S% l/ A
5 H8 ]$ |2 ?/ j2 T. d! e7 s: Ouses
f, M5 ^6 ~) o1 S+ y R; MWindows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
5 D1 ~( {% u5 ?' o" W9 g% r# ~. T1 T6 g* l/ ^" b
type 5 S9 s$ S1 j: u) J; i3 y
TDelphiService = class(TService) 8 z' w+ p( O6 j* Z l$ [6 B
procedure ServiceContinue(Sender: TService; var Continued: Boolean);
/ @5 U; m( {" u2 Bprocedure ServiceExecute(Sender: TService); ( ^4 @9 m* k* |/ S7 r
procedure ServicePause(Sender: TService; var Paused: Boolean); * Q$ Q' V) S' Z( {! }! s! n
procedure ServiceShutdown(Sender: TService);
0 F }: O! y3 Y$ rprocedure ServiceStart(Sender: TService; var Started: Boolean); # z- v3 K, ?0 @3 b
procedure ServiceStop(Sender: TService; var Stopped: Boolean);
9 C$ ?0 H7 m4 S) fprivate 4 N# I6 D3 o! z
{ Private declarations } - ` E! T8 d( e
public
5 I N, n& J. Nfunction GetServiceController: TServiceController; override; ) |3 q! L, D T' }
{ Public declarations }
* {- _ |" r2 bend; $ s9 \* p/ n8 A, S; K! D2 X& S8 k
9 j u. T9 [% I3 U% \var
* Z5 x; A1 f! { [' Z1 CDelphiService: TDelphiService;
, I b7 d# X; `# TFrmMain: TFrmMain; 1 T* q% s# Q4 g4 M* o1 m0 J
implementation 9 D& A8 k3 a# [+ J4 O6 Q* K; S
; r0 L: w3 f$ q6 h{$R *.DFM} " V1 n) c. } Z6 e- D$ V
( T% e1 M9 B% D, ~/ O3 O* oprocedure ServiceController(CtrlCode: DWord); stdcall;
, ^& q1 h7 @4 f* wbegin
9 G! m ~7 ]8 ]' C6 g0 h9 S0 kDelphiService.Controller(CtrlCode); ! ]1 f: k: g& c: y% Y( x
end; 7 T( r" N6 B. }) j6 U3 R
. K6 T. S9 s' W, e) p
function TDelphiService.GetServiceController: TServiceController;
7 ^# e+ H7 I: z# X) G2 r- Rbegin & X; e, I# C4 U
Result := ServiceController; & e% v5 [+ C0 F) R. D7 {
end; # ]4 z3 x" y+ a
; k4 N9 t/ S1 M% m7 E% C) d
procedure TDelphiService.ServiceContinue(Sender: TService;
' f' a* m5 b+ {# o) g' i) A. ~var Continued: Boolean); . T1 Q" k( S2 S9 k7 G& }9 e
begin
9 q" T9 `1 F/ x1 w5 Zwhile not Terminated do / D; ~. V) [" A5 M* T
begin 3 b5 l' [: H5 e7 ]3 g, S) m
Sleep(10); 6 P, N$ N; A' d" L; S; g9 a
ServiceThread.ProcessRequests(False); 5 f% Z, ]/ e2 c8 v, T+ J
end; d; ~% P- Y3 i
end;
' ]( H3 Q3 T% w2 B$ h
+ P1 X; F9 H, ^8 `$ Q) {procedure TDelphiService.ServiceExecute(Sender: TService); 0 m, P: J+ f) v
begin # @! Q, b; t7 S1 r3 E8 ]- v
while not Terminated do
0 m1 k3 q; V2 [2 v( }begin
) C5 |- u* w; K y8 U) w8 M( xSleep(10); ( V5 z$ W! g3 n
ServiceThread.ProcessRequests(False);
$ e# E( P8 c& W. ]1 w! l. Fend;
: W7 Q+ p" p3 M% O5 v0 V h4 send; 4 x. A: X3 }' T
; o, R. i$ r- J- K' c! fprocedure TDelphiService.ServicePause(Sender: TService; : G- i& P+ {2 P) p. y4 `9 @
var Paused: Boolean); + O+ B, t. f+ D( E' ?9 o R; s
begin 4 R- \3 v7 H* {0 x1 d9 ^* l5 x6 H* v
Paused := True;
6 p* ~9 W: T0 e6 f5 G8 Uend;
2 [3 @7 S4 r5 l7 o. D
. O0 ~) X1 r# z1 p$ Q. i0 rprocedure TDelphiService.ServiceShutdown(Sender: TService); $ j' a( u2 B5 K1 m! a& ~
begin
3 j7 o' _. P" l LgbCanClose := true; " V2 `) T9 P. w+ K& a
FrmMain.Free;
! T5 n* l/ b5 k6 |2 CStatus := csStopped;
( q9 L2 U3 N- r2 x; W* X# rReportStatus(); % L8 Q, M0 U) c/ h: ?6 q
end;
9 @2 U, r/ E0 Q7 l" S5 J0 i9 x! m
procedure TDelphiService.ServiceStart(Sender: TService; 0 g6 L3 F: u8 W/ r- C& s
var Started: Boolean); 2 N. p! M2 y& y4 `9 c8 t+ ?/ z6 T( P
begin
% D1 n5 r8 B% ~Started := True;
3 j) o2 i7 i( j3 Z7 ySvcmgr.Application.CreateForm(TFrmMain, FrmMain); 3 a1 `4 C k5 l. L3 x+ s) D* j) A
gbCanClose := False;
5 k: q" R8 O% h! Q3 [! {! aFrmMain.Hide;
# {4 T8 O5 F) N6 r7 d$ b( }end;
& B% G. v! }- ?+ A# q) \6 ^
: _1 S6 w& M* }5 Cprocedure TDelphiService.ServiceStop(Sender: TService;
/ ?+ c' b+ Z7 ivar Stopped: Boolean); 3 N# Y4 B8 M+ f2 l9 n: R
begin & \/ @* L6 D& \' K7 p$ `( |
Stopped := True;
9 j, n2 p |. @, | ugbCanClose := True;
) V/ S3 ?: w+ a/ [9 P8 QFrmMain.Free; * Z3 [; I' ~: t! M0 Z0 `
end; 6 H# g2 h# Z& p# B6 A l D/ g: W, [
1 U4 N# R) {! y
end. / p0 A" h- p6 i) v I8 ?, L$ u
" a9 }9 Q- N5 ?2 W r) e+ C2 i0 z# |/ e
主窗口单元如下: % j! ~2 Z. A7 ]* c3 P
8 M6 \9 @; }! v2 J
unit Unit_FrmMain;
2 k) {( m- f. ~
) {9 Z F/ A; _9 l5 ^interface ; ?: _+ R% ~3 d P8 T6 |
+ d0 Z) o+ r) ruses 8 o+ r8 A/ o# O5 O& ?: C
Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms,
# c* y( R# p# K8 D1 a5 [6 ^Dialogs, ExtCtrls, StdCtrls;
$ ^" z- K8 R' ?* X2 A9 z- N! O! t
* f; A& o" a3 v- pconst
. \6 @" {2 ]/ L& KWM_TrayIcon = WM_USER + 1234;
1 X4 p* Z3 _# q( L' s2 Ytype 3 n" T+ [/ z _2 Y( e2 h) b& e' p
TFrmMain = class(TForm)
1 |" G- v( P* X# y1 Y5 `Timer1: TTimer; $ Z0 a# ^" _4 O" B' M( Z) T" C: `' j7 _
Button1: TButton;
) X+ t" w! W- R! E9 b" D4 Mprocedure FormCreate(Sender: TObject); 9 Q+ i0 O9 O4 ]- e. r2 m% _
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
/ G' W, P9 ~- f1 i( vprocedure FormDestroy(Sender: TObject); , J9 k5 X" I4 _- k- }7 u
procedure Timer1Timer(Sender: TObject);
7 t5 g: K- P) Zprocedure Button1Click(Sender: TObject); + R" ?6 J/ F+ P8 ~
private
. T: P0 \9 L7 I" V7 D6 L{ Private declarations }
1 h/ r9 u5 j; L# w% f2 l# }IconData: TNotifyIconData; 8 c2 j C( A- l4 Y/ p
procedure AddIconToTray;
* H t) s6 Y$ y U" N3 |% Z# {procedure DelIconFromTray; 1 c o5 A! }7 `/ K, @. N
procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
( e! x7 k" x* n5 Oprocedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND;
* T2 A1 A) Z+ ~1 t% A. i; Ypublic
+ h2 L0 @ |9 L0 E2 p{ Public declarations }
$ r0 t5 Y G! Kend;
, H2 O; b% i4 C3 \
6 P" |: Z7 K, I; m! Ovar & l0 u1 k' M8 h( X6 O( X) H
FrmMain: TFrmMain; 3 l* z7 t7 d- K
gbCanClose: Boolean; 5 F8 L7 c! F( X* G3 r
implementation " c# p6 d" U! f5 T
# p+ z, H5 y+ g- j1 P{$R *.dfm} - S4 B4 E9 y9 h" B2 g0 O0 C* o
9 ?( N* |. T/ s) b$ L( g
procedure TFrmMain.FormCreate(Sender: TObject);
: ~; G# t+ v2 F6 l3 ?begin
' U+ p, T& a6 E# w# dFormStyle := fsStayOnTop; . G+ G" D5 v4 `7 |- k c3 L( E
SetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
: a# B5 w: C* E N/ V4 _gbCanClose := False; : y0 m5 Y, }8 N3 O/ M7 M) Q# R
Timer1.Interval := 1000;
7 i8 a4 o( |8 cTimer1.Enabled := True; ' ~1 k2 D) h5 O8 M/ Q
end; 6 I/ O( X% [! Z+ ]6 m+ D
2 D8 k/ [0 w( cprocedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean); " B) f. H& e) n' {# M
begin & U6 z+ d6 Y3 V$ P/ g
CanClose := gbCanClose; v( t6 C: X+ r
if not CanClose then
b0 a7 V$ ?" v" Ybegin
: B; ]' a: w; w+ XHide;
V8 j/ i2 U$ P gend;
; M+ K" Q4 q% z! `/ A6 v" X& Xend;
/ e( R9 j& h' ^8 E/ S
3 F& Y" v( f9 j9 g! B3 @procedure TFrmMain.FormDestroy(Sender: TObject); $ G+ h6 _, \3 E( `( e! D x
begin ' B4 \0 C+ f4 I9 l7 `$ G' J2 S
Timer1.Enabled := False; 8 D: S* z/ L4 Z" ?; r
DelIconFromTray;
5 i) u' I# i, }) s# T$ @end;
* c% L' y! ?# x4 @+ h
! o3 r) d8 A' j/ \' v+ oprocedure TFrmMain.AddIconToTray; % t7 s* P6 F1 M
begin
% d7 g) K2 j! W. y+ VZeroMemory(@IconData, SizeOf(TNotifyIconData)); " ]% ]) e4 I! I. U# n
IconData.cbSize := SizeOf(TNotifyIconData); ) }+ @' s+ Q6 }4 i) Q+ k5 O9 Q: N& a
IconData.Wnd := Handle; + Y2 ^: z7 {9 g [9 [; `
IconData.uID := 1; # |1 O) ^0 E6 s+ B9 E$ o3 g
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
) C2 Y2 U1 x! Y) Q0 ]% z5 wIconData.uCallbackMessage := WM_TrayIcon; ; Q. f5 K( Q( f& h5 E3 [* z( d
IconData.hIcon := Application.Icon.Handle; 3 l" l+ Q1 f2 u H- v5 L
IconData.szTip := 'Delphi服务演示程序';
8 T( k. t& S# }) p" k sShell_NotifyIcon(NIM_ADD, @IconData);
0 s( [ l# k! o! a: uend;
$ o9 X# s2 i) ] w4 a
, c( G T# A, iprocedure TFrmMain.DelIconFromTray;
) W! A, T1 B; N* k- u7 i6 tbegin
c( m& W# U7 n; _- w w. R. N1 }& RShell_NotifyIcon(NIM_DELETE, @IconData); * W1 q. B7 T( O4 o0 A& W' b
end; & W7 z h/ ~: G8 w% q3 i! D- \ k! t. r
" d/ ?* B, S7 n$ X
procedure TFrmMain.SysButtonMsg(var Msg: TMessage);
7 h, N5 z7 I! q5 _$ o- {. ~begin
7 x5 I: h# h, b* l8 u3 D$ B5 z7 @4 V+ Q. mif (Msg.wParam = SC_CLOSE) or
. s3 T& V, s& O- Y7 o3 H5 |(Msg.wParam = SC_MINIMIZE) then Hide - y( F+ N# m* M7 ^( c& j7 y$ a" V
else inherited; // 执行默认动作
; F J/ ^- B ?& F$ ?! B# {( Tend; 7 B N3 Z7 X" N5 l
4 }& I) T+ Q2 bprocedure TFrmMain.TrayIconMessage(var Msg: TMessage);
# l) M3 `4 Y& o- ?* | _begin
* G& |' a6 b, n/ d4 zif (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
6 r8 f7 J0 o% V0 V9 Iend;
; R* w& c1 t' P; \' G1 c. K. C0 s( W) \2 V v* `: l% |
procedure TFrmMain.Timer1Timer(Sender: TObject); : t) G: c* `; ^3 u
begin
1 m- D% y+ }7 B" ]( ~# x8 Y, ?4 YAddIconToTray; ( I9 f) R0 ?4 u+ ^/ e% q; G
end;
+ `. y6 I8 O; N4 U' k) _$ ?+ C7 ~2 ]- H6 C2 z* y9 \" }
procedure SendHokKey;stdcall;
1 v- f* b f% H. e$ Bvar / k/ n! h1 z8 Y
HDesk_WL: HDESK; * |: r2 S" o) `9 R- n- [- Y
begin
0 p9 v# {/ i, GHDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); 4 ^8 r! W! a) g+ Y
if (HDesk_WL <> 0) then
' i( x7 Z. f- R6 w6 V! Uif (SetThreadDesktop (HDesk_WL) = True) then
& S1 E* F Q" U+ tPostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
, J% u8 a$ M2 o/ k4 Z4 rend;
% e, U3 D: `1 b8 T
4 j' d+ x. b6 d3 u6 lprocedure TFrmMain.Button1Click(Sender: TObject);
4 j8 V( [ w) d6 [var
( [% W/ f. `4 u6 A KdwThreadID : DWORD;
( L7 p4 [( l" e/ abegin 1 A( ^' n- b7 o1 j
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID); & ]) F# N0 T3 M* V/ J
end; & s4 g; m2 c2 ~8 U. e, c
0 F X1 k ?4 R' ^
end.
* e5 \. f/ ]5 o% c) ~3 v( b. n" }, d! ?9 ]
# R# [4 D; |- b" W9 c补充:
5 H. g, y2 i* M- O: W: j(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.
2 c9 @7 I! L' Q8 h- M. W v( l$ Z3 L. m
(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.
0 q# U$ b# {. D! u5 L6 |2 Z' n/ d6 W9 r8 T1 `( ?
(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: # C; k% |2 b5 c* r( s5 G' j/ Y$ j
unit ServiceDesktop; 6 y4 y$ l% T$ Z* \
* g9 m+ ^! `9 R& d
interface 0 Y' C6 }' M: `- Z4 g
" Q% I6 \9 F" a( }function InitServiceDesktop: boolean; 9 R0 U6 }0 F6 e% T; F# g# a
procedure DoneServiceDeskTop; g9 R/ ]. t$ |
/ c) b2 o% t3 a# [! ]
implementation
1 s* u3 V8 e! j; W5 K5 L6 I3 l0 H7 |( [9 [, L- d
uses Windows, SysUtils; % F0 |% Z0 s) }' n
* } u/ [" K. b' X" t& |/ Zconst . M8 _" ~5 l& T( f. X3 a% s1 P
DefaultWindowStation = 'WinSta0';
. i0 _* i, n# }) FDefaultDesktop = 'Default';
0 N- B9 q) L3 Cvar
& e5 H* J* m5 t. a3 A0 \5 t vhwinstaSave: HWINSTA;
) L% J' T$ H" Y3 }8 e- s( IhdeskSave: HDESK;
3 z3 z* A- L2 KhwinstaUser: HWINSTA; ' [; L: {8 @: \# J: N5 R( b
hdeskUser: HDESK; 7 J7 A' e3 Z0 F5 d- u
function InitServiceDesktop: boolean; 7 ^. d4 K( k7 h
var
2 ~, J* ?- m4 ~+ J; `8 t* C6 JdwThreadId: DWORD; - B8 X/ n+ ]( s
begin 3 r# g$ ^. d) r% X
dwThreadId := GetCurrentThreadID;
- r0 |/ J6 b' j" ~, X' h4 e( I* J// Ensure connection to service window station and desktop, and
/ g, j) G7 q* ]+ C# ]2 u7 |// save their handles.
5 ^7 f5 z: n. GhwinstaSave := GetProcessWindowStation; 0 D" s$ w3 S. T- B
hdeskSave := GetThreadDesktop(dwThreadId); 9 A4 [6 ?" Z- X! t% l% ?
' y2 V1 f1 J( w8 P2 ~# P
. G% F- @2 b A. @# A( |- HhwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
1 u- \; V# |( m0 c1 vif hwinstaUser = 0 then
: K* \' Q$ j) A5 cbegin 3 a& C0 d( ^" ~) Z0 O, \3 W
OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); * N5 N" I: D# _ X
Result := false; , \5 g) t; ?2 y' A
exit; 1 M# i7 `. p0 J
end; 8 V$ `, A& L" j; H+ R9 h8 G
; `8 n( d/ p+ j% K1 x/ uif not SetProcessWindowStation(hwinstaUser) then . G) F f' V+ v5 {7 C) D
begin
( {+ X- A0 Z: {$ S) V, b, VOutputDebugString('SetProcessWindowStation failed');
) q/ D& V9 o r& r& [, [3 }Result := false;
, y" K/ D# q% x: ?; U3 W+ nexit; 8 M/ v# }7 C# a
end;
, J1 x% v7 a/ F* D* [4 t) r1 \3 [# K7 `! p! e) I/ [/ k/ ]
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); / {! S' G$ a6 X5 l' }! }
if hdeskUser = 0 then 1 S3 v7 j7 x$ V( }
begin
8 V0 x* |' O4 [& yOutputDebugString('OpenDesktop failed'); * @8 i) m$ y. {4 K: D$ g. I0 {: n* m
SetProcessWindowStation(hwinstaSave);
5 N3 x" u) u% q3 D6 DCloseWindowStation(hwinstaUser);
/ J" _( a4 B4 i+ p3 ~2 DResult := false; ' R) A5 [8 u: I6 S2 f E( }
exit; ! d1 Q$ {/ S4 `0 n1 D
end; % Q* ^% G d6 H7 Y9 X5 n1 \0 N
Result := SetThreadDesktop(hdeskUser); . Y$ R1 I7 z! I
if not Result then
( j% y: O) {# M# ` \OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
, _' F% T7 @( y9 ~end; # v. C( k- ]2 z6 v2 T; U) a- P3 N7 \
1 l$ l! p! i0 O* z1 M/ g/ vprocedure DoneServiceDeskTop; 2 `6 y7 E4 ^; ~+ b0 \& {4 V0 }) ?7 g% ^
begin
0 L' y7 x) y* C// Restore window station and desktop.
; { r, }& o8 f- }( ?* A8 GSetThreadDesktop(hdeskSave);
, E! c# K y/ JSetProcessWindowStation(hwinstaSave); & D j9 f d- K l+ F3 ]
if hwinstaUser <> 0 then
6 ?6 ^2 q5 M) TCloseWindowStation(hwinstaUser);
v! N* r; e, x% A# n- pif hdeskUser <> 0 then 1 C. u$ }. \7 D Y, X
CloseDesktop(hdeskUser);
% t& c; g8 Y# h+ |" E; Mend;
2 t9 s- G" `* l! H
2 [5 d0 h. P5 z: t2 J$ P, Minitialization
& I Q, N7 u* l4 _- @( ]InitServiceDesktop;
, g7 |0 q4 Y3 p, Z2 |1 f6 Bfinalization
4 g. e4 c, a! [$ I5 DDoneServiceDesktop;
- T5 T2 O! @ Tend.
6 F" u3 v6 N" m* h1 j! Q9 k更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip # }, r7 p) B T+ u: |
% G% |& @6 Z z' T(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: . B4 r# S; V# u9 `4 y" G
2 x% U s Q# E, J7 @unit WinSvcEx; $ l& T) N9 n6 A6 m) F
% H& b( }+ S7 j; n* xinterface
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uses Windows, WinSvc;
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// Service config info levels
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! m# m! j1 L/ BSERVICE_CONFIG_DESCRIPTION = 1;
$ u, }6 D6 r; [: q$ V# C- F" eSERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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