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(1)不用登陆进系统即可运行.
; @6 Y6 {: V8 v: {& k* ]5 P9 x- E (2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的. 0 C/ U" F8 |) I* y/ w" N$ U
/ M3 J7 _2 L! E8 a! c! X6 l( [6 l 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. " o* h6 f: O# d" Q
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: / |% ?. h _3 o2 Z0 z% F
. v9 i% K; R7 n0 ]5 e
(1)DisplayName:服务的显示名称 / e3 ?4 @$ S8 o! p8 S7 {( L
(2)Name:服务名称. , q2 X& ]9 `6 }+ S7 D- }' `6 p# ~
% K# |7 y# u) i4 p, e) D 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. + l1 z; D$ v2 G1 B+ x- ^
J6 h8 Y6 \" i. o6 P: Q9 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. + |% U+ u1 Q1 ?. F* G7 ^2 e/ Z- `
3 A% b8 o! P3 J& P# l% ?. x' ]
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.
5 s; |, Z2 G2 ^% Q. P% L( o
# p" w6 L5 W2 i% C5 ] 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:
5 ^0 ?* ]( x8 p6 @- Z& R- x3 z5 g, M; m9 U& h; Q2 h
. `: J& D3 d8 u/ Y/ u, yunit Unit_Main; B) P; s$ i4 z3 q- d
+ Z5 d8 R7 ^/ _ q
interface . Q/ e7 \' b( Q! w( I) ?/ f& e
0 {- n0 O- Z& t8 k4 m
uses . @/ {& S s l# M9 W5 G
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
( o4 `5 K2 V, ^: l9 G n- [1 L1 k/ c2 c& O. W+ D, S+ I3 H
type
! H6 d) n$ @; F) O6 e9 e! rTDelphiService = class(TService)
* m" M: K6 A, q2 Nprocedure ServiceContinue(Sender: TService; var Continued: Boolean); + c/ s7 u; P5 m- l! U. P; \3 J
procedure ServiceExecute(Sender: TService);
3 |: M" _% y. T' {$ `5 k) S5 {procedure ServicePause(Sender: TService; var Paused: Boolean); 8 s( v# }' a+ e
procedure ServiceShutdown(Sender: TService); 2 |# ]0 B$ N1 p+ T8 L6 \4 x1 C
procedure ServiceStart(Sender: TService; var Started: Boolean);
+ j* R+ L/ Q6 } S2 [6 v! [+ rprocedure ServiceStop(Sender: TService; var Stopped: Boolean); . ] D1 ]( W+ f, `
private
5 }" D* r9 |3 t/ k! H$ V X{ Private declarations }
0 `- G7 m( y, O" j7 \public
! z" a% U9 s) m+ @( wfunction GetServiceController: TServiceController; override; ; V7 [% v/ W0 X
{ Public declarations }
9 \2 h# Y% `4 M7 n3 N3 T1 lend; ' s$ ]& ?. l$ [) d
0 N* a& q: V' I) U$ W, ovar
- _% b+ ?; q% N" v3 g. uDelphiService: TDelphiService;
3 x9 J4 Z1 [0 u% |FrmMain: TFrmMain;
) |, c4 L2 J/ L( E" T: J) {8 Uimplementation ( f$ k7 L; A9 \+ f5 G) R
7 A1 H) R4 s! T0 |3 c k{$R *.DFM}
$ o" `8 [( z* G; p' I# v# i7 C
/ |7 W# L( h* ` Qprocedure ServiceController(CtrlCode: DWord); stdcall;
+ j" H9 ^" U( Kbegin
$ h* l4 n% c! G) VDelphiService.Controller(CtrlCode);
0 ]; y( K) ]5 }% n% O9 xend;
6 n$ P% ?/ t( H" d7 q
% Q1 C% S: o" C) u& ^& Wfunction TDelphiService.GetServiceController: TServiceController; ) j9 W# Q& M# ]* Q( I, o5 F
begin
0 b6 e! v. J. U! U) Q* q: {Result := ServiceController;
9 y8 \6 ^7 ?& b9 w$ d7 Gend;
% A6 Q6 E2 [2 E* c: [; P+ n3 L+ Q2 t! O/ V& t
procedure TDelphiService.ServiceContinue(Sender: TService; & V' x$ w6 X; q
var Continued: Boolean); ! I" g; Z9 W X# R! t# i
begin 5 A. Q: T N" a( {1 f# D5 e
while not Terminated do ; k, m' A7 c" k% U N
begin
$ j" }% |' r* S5 q( OSleep(10); ! K( M9 Q+ K( J0 t, o7 E: H& g
ServiceThread.ProcessRequests(False);
3 Z; R% V. x, V2 g& O% W; [end; ! y+ `5 N! A' V7 y) f0 } e4 M
end; ! e+ Q1 u" r; f- r
3 m' z; n% U+ ]- i0 H
procedure TDelphiService.ServiceExecute(Sender: TService); , \5 ~+ G7 {) w* F" f
begin
5 u! l( y2 D# H ]& L- W, a# vwhile not Terminated do
/ @ o, P$ |7 [% S5 Z8 ^" Xbegin ; P8 ^2 J/ V# L% T' j! B- r- F
Sleep(10); / O- i" J0 ?5 i; Q1 f
ServiceThread.ProcessRequests(False);
; p' }( W6 {- jend; 1 ?! W6 j- d% K
end; , e8 v2 D5 [& X9 W5 m# s
/ v; W3 y3 m$ ]3 T _procedure TDelphiService.ServicePause(Sender: TService; ' D3 Z( P% {% Q
var Paused: Boolean); & B2 ]: k! y, d/ K
begin
7 v# J7 M4 Y) w1 T7 ?" f. P. VPaused := True;
& t+ M: S8 @0 gend;
1 o5 T9 ~" O6 V
8 I' e& C) `$ z5 e7 Eprocedure TDelphiService.ServiceShutdown(Sender: TService); 4 R+ T! J! @/ h( M5 w1 r9 |
begin
$ X* K, Z0 y* S% o" r1 W5 }& kgbCanClose := true; $ K2 {7 k5 m7 s4 f5 l; k! t6 S, u
FrmMain.Free;
9 Q! J; d! [) D, }0 V b4 \Status := csStopped; + x) o; }( k! g0 A- f2 Y
ReportStatus(); ' Y" s/ A% p6 q
end;
]: E1 t9 t. m
/ {/ i- W" y2 Yprocedure TDelphiService.ServiceStart(Sender: TService;
% h! i" }7 n) P" Y8 e" h# Wvar Started: Boolean); , }# t3 J5 ~ a: w# }. u5 T! M7 ^
begin
0 ]% O: ?7 S$ }$ D+ D* B8 r* YStarted := True;
" R E8 h# o/ i* @% K/ i7 {Svcmgr.Application.CreateForm(TFrmMain, FrmMain); * C: h" n7 w6 u* d3 a4 F1 Z6 a
gbCanClose := False; 1 _' f3 Y. [1 s" A& A8 X/ ?: C
FrmMain.Hide; 9 k- b% g/ g6 J" a
end;
: M b3 e9 [4 U0 @ }, x6 c- r* l& Q0 k' y5 R9 U
procedure TDelphiService.ServiceStop(Sender: TService;
- ]$ N8 e$ t- z6 u* ^$ y5 |var Stopped: Boolean);
) D; p8 k- S2 w4 I/ g- Hbegin
4 ]8 ?; ^# l. G+ ?" Z: sStopped := True;
& {( w0 e. G2 `7 Z4 dgbCanClose := True; + s$ N/ c- ?0 V8 \
FrmMain.Free; ! \) t: d. c. _/ l8 u. v
end;
' g$ ^9 j$ r; L) ~, @/ ]9 A9 P) f7 q- {" g: g1 K
end.
$ @, F/ H& V1 U, G- i% j: v) \% |/ @+ T }" {
( k o5 p0 J9 z+ h# V. @( W6 F
主窗口单元如下:
7 ]' k# w4 L$ [# F O$ i, f9 b+ U+ J" {* O1 f' v, E3 w- s1 m
unit Unit_FrmMain;
# U* T. M' W9 N% G7 [% ?% v. Y* r5 B6 Y
interface
F- ~0 K/ y) Q8 V, L) d% \3 B' t' r0 S
uses
7 @7 K I# P2 f" ~5 gWindows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, 9 l' j$ C! G. W6 B4 c& ]
Dialogs, ExtCtrls, StdCtrls;
x& g+ w# P5 Y! B: a! x' d/ v0 `# E- L' W% x
const % o) f1 @$ o% f1 M0 T
WM_TrayIcon = WM_USER + 1234;
8 e; C# S+ h4 Z; R4 N7 Btype
) Z/ T F! [+ f A2 e5 p9 O1 z7 t# cTFrmMain = class(TForm)
8 k9 s) |3 O; B5 I& aTimer1: TTimer; + x" m8 w6 H$ m
Button1: TButton;
4 X5 A" v: K+ A3 ?procedure FormCreate(Sender: TObject); + W: ^, K( y9 X/ p9 V& ^
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean); ( E# _) f& E1 n+ c Z. P1 q, U0 P6 K
procedure FormDestroy(Sender: TObject); 4 ~6 K0 d3 ~+ r; W6 F: o
procedure Timer1Timer(Sender: TObject); : X& G: e( `" ]8 u Q
procedure Button1Click(Sender: TObject); : N9 r6 F1 `0 z! d3 t& Y7 Y
private : c2 ?9 n" z! m h# e
{ Private declarations } ! I' f: \- e4 z! e
IconData: TNotifyIconData; # B& `5 ^% f# L' |
procedure AddIconToTray;
4 L+ p ]3 T! i+ x- wprocedure DelIconFromTray; / T3 g+ l, O8 M% a1 V
procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
: V" [) [" n: P, vprocedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; % c* a/ S( z- M9 j8 W" b/ F F
public
6 D& R/ w, k, M0 q; i [{ Public declarations } # p1 _4 p0 e- t( ^* W$ ?% ^/ R% Z4 P
end; ; W" W7 j9 [# \/ F
) i" h/ G" ]- E2 Mvar
+ H; [- }0 r: O/ k5 F ?FrmMain: TFrmMain;
5 u5 B0 r$ }3 _1 S- r9 x: ^# K# J6 HgbCanClose: Boolean; }, w3 l' @" L
implementation
: d S" @; i- }5 o4 w2 d* k. ^! ^, a" U# j/ j2 N
{$R *.dfm} : c& M) q1 J, v6 p( u# w
+ M5 p6 S' v) Kprocedure TFrmMain.FormCreate(Sender: TObject); ) t6 F" x( H: L5 f
begin + E+ U% |+ J% S! d+ q
FormStyle := fsStayOnTop;
, e" [& k0 h( x* F1 @5 HSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); e+ `: e' p& E
gbCanClose := False; - J6 P1 M' A3 V
Timer1.Interval := 1000;
5 r: x# W9 z& a& Y/ k1 a) vTimer1.Enabled := True; 2 A+ l# O# r1 v7 M" \7 }7 O: y
end;
5 o/ H" w6 p" B5 o" Q3 W2 h# }) d3 K! S8 x' |
procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
J& y7 f$ t( K( E2 {begin
8 _7 H t& r0 V" yCanClose := gbCanClose; 9 Q4 `2 _' d$ _, w9 w8 j
if not CanClose then
) A+ m! j) u/ D, vbegin
( ?9 o) ]) Z# x1 F) p+ }5 E6 E3 qHide; ) I' v$ w: \' c$ A5 k9 r
end;
& V6 v* w) y8 Z3 w# iend; & S1 x2 x' t! w: |( ^- z5 w! ^: K
4 Y$ p! B% Q" L: C/ _' H
procedure TFrmMain.FormDestroy(Sender: TObject);
! s, T6 k9 B5 y+ _4 mbegin + |6 G" b7 n& X" c% H& l, S
Timer1.Enabled := False; . T& I- s8 a6 r7 ]/ m4 W& K3 k7 b
DelIconFromTray; ' Q2 O1 ?/ J! d; D) O
end;
3 C2 x: D0 R9 b1 n7 j1 B6 d' J* L& S! L
procedure TFrmMain.AddIconToTray;
) `- g5 r; {4 F3 Ibegin 2 e" M1 X, ^; f0 O% p. b% r7 w
ZeroMemory(@IconData, SizeOf(TNotifyIconData)); ! N/ ]- {0 v* f$ K' R5 i
IconData.cbSize := SizeOf(TNotifyIconData);
) W, b+ Z& S6 f' x; CIconData.Wnd := Handle;
7 \! }, e4 T' L" KIconData.uID := 1;
9 v; v2 \, f9 K3 U# L( @* _" R# EIconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
7 X8 x1 v3 C4 k5 XIconData.uCallbackMessage := WM_TrayIcon;
& F- c7 A" g4 i2 l. \2 yIconData.hIcon := Application.Icon.Handle; ( Q0 f, E# B7 |- `. \) {
IconData.szTip := 'Delphi服务演示程序';
, r( n$ f2 s. u7 ?2 VShell_NotifyIcon(NIM_ADD, @IconData); ( y3 ?1 i; \8 U! [- o) K
end; 0 q2 P2 S' j9 w+ d) u8 D$ x1 c
. B9 Q# f: t% u" I, V" ~procedure TFrmMain.DelIconFromTray;
8 a6 }) \3 Y8 n, i' H: Hbegin 4 ?5 _- H( N5 [) ^
Shell_NotifyIcon(NIM_DELETE, @IconData); . m5 @' F4 p3 y
end; $ r3 I8 f$ `' X; \
$ J- R- W3 C3 @; O, {! s0 c
procedure TFrmMain.SysButtonMsg(var Msg: TMessage);
, ~0 C* a$ |- y- j* obegin 7 U- T) P* J) O/ X" _
if (Msg.wParam = SC_CLOSE) or , S X% v `) V) ]' \
(Msg.wParam = SC_MINIMIZE) then Hide
1 y) ]$ t, \ V5 s% ielse inherited; // 执行默认动作 : @! g9 e5 U+ c( x' n
end; , T) \* Q+ v6 I+ ^- a- E
1 K$ n* W- V6 o5 {2 ]; ?" {1 Vprocedure TFrmMain.TrayIconMessage(var Msg: TMessage);
8 [, x: U. e- v/ K3 ?, }begin 5 _8 M' R& @- r! r9 N
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show(); & W$ M' Z& S5 I2 Z! Y# ^6 o# u
end; z T# h; r" j \: G
" m8 @( }$ q# q3 i, D% a
procedure TFrmMain.Timer1Timer(Sender: TObject);
; S# ]" _8 L6 q) } gbegin
0 |- S& ] g& B6 p. Z+ {AddIconToTray;
1 G# b- N1 v2 J- Uend;
& c; D+ V+ m5 L) V7 k2 l" t& L; C0 g% w9 X
procedure SendHokKey;stdcall;
# l5 N# T }9 m% j7 h bvar
+ ]0 f( ~$ Y' H: x# Y# i4 ?; DHDesk_WL: HDESK; ( o+ P8 B' { u1 z, Y# P, M
begin ! Z: d* r3 A5 |5 q9 K
HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); % y% i2 J7 q' z( r8 A6 ~
if (HDesk_WL <> 0) then ! O7 g* k. `9 C$ J5 ^
if (SetThreadDesktop (HDesk_WL) = True) then - T$ i0 `5 E% |5 ?
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
* C G R% U8 ^ jend;
( E0 T% i* i; F
* h! r ?0 E3 j. Q; N0 j, x5 Tprocedure TFrmMain.Button1Click(Sender: TObject); 0 q5 k' }, C0 f3 g
var " u0 e% S! g) P. C4 j) s. S
dwThreadID : DWORD;
/ C Q0 l& k* b+ v/ z# }begin
2 V/ J+ E5 M5 W5 r n/ FCreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
8 H5 ]& V) P) q% j9 ]- send;
- Z# T5 w% T& e3 s4 ^ _
7 |& Q9 O/ L4 {% u9 h" t$ K# [end.
) `; c7 j( T$ N/ B4 g# O+ G
4 Q6 O3 }/ t% x- k- h u
8 n; l% x& j4 }' r/ \2 M+ _6 L补充:
2 t2 b0 v: _+ e9 d(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.
R' x' R7 j) R' O
" O4 \; p/ M, X(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. 7 n7 A1 r) @+ f% U! g2 K1 U1 ^6 o
4 Q% |3 _! a4 y4 |! K" {: Y(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: & Y1 `0 N3 P' e9 ]) ?4 R
unit ServiceDesktop;
5 s' z) T" n, H1 i5 c& j3 W/ d7 {8 t) Q( U: f$ P8 B1 \
interface ; m" P6 A* B: @7 v1 x
1 y& h: T5 H* A; B. u9 j. [function InitServiceDesktop: boolean;
; D# d+ n" r8 R$ j0 T7 x0 E8 }procedure DoneServiceDeskTop; 7 Q( ~7 ?2 F" g, q$ q
/ e1 h0 y! G; Q- R* Simplementation ; [' C4 q6 v& w$ ^) x P8 C
, z& y1 ]' B1 y* E: Y# n
uses Windows, SysUtils; 3 K+ r/ Q1 i8 t" x2 h
0 y. U( H, p# _) P# T
const
5 M b8 _4 L0 \+ E2 SDefaultWindowStation = 'WinSta0';
; [% d9 ^' l3 F6 eDefaultDesktop = 'Default'; ! d/ \. i9 w( E/ f% a6 n4 C. l
var
. S- h2 {# F S9 H& l7 QhwinstaSave: HWINSTA;
- C: U3 m2 A1 u) @. ? ]hdeskSave: HDESK;
8 t, P; G: E E' }, k7 i0 u* Y IhwinstaUser: HWINSTA; 3 k& G; {! q2 a* q4 U2 o! K
hdeskUser: HDESK; " v6 b6 E- W4 d2 b3 \
function InitServiceDesktop: boolean;
' h* e- @2 I; X# [3 ^" ovar
/ x v; I- d; q! }) pdwThreadId: DWORD; " x% M- Z* g! _2 c" v
begin 5 Q+ s8 Z1 M* h" v
dwThreadId := GetCurrentThreadID; ) E7 I, ]. d" y5 j+ U
// Ensure connection to service window station and desktop, and T- s- `) Q+ G
// save their handles.
' |! D) {0 r& \5 \: L, }+ l0 whwinstaSave := GetProcessWindowStation; 4 Z4 W2 _4 R" A+ X$ o# B& w
hdeskSave := GetThreadDesktop(dwThreadId);
+ _: n) V) F% d% f. ~$ x; }! }2 V7 P4 n# [# J+ Q- J* T/ \% p
" v- F% i7 U V, g, r1 E
hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
3 V& m( G8 O. J2 D. _/ Bif hwinstaUser = 0 then 7 G4 K2 r% o+ k/ B4 n
begin / [1 o H' i- T
OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); / Q1 S6 i0 \7 R F4 f. e
Result := false; * p0 x& V( C' a- ]; S
exit; $ p* b y1 ]2 k
end;
* m' h @8 P! ^6 E ?8 F: G& L
) F9 X! c: g |0 d( kif not SetProcessWindowStation(hwinstaUser) then 2 `( Y8 x8 c4 ?2 i
begin ' P0 g; H5 R, N! |4 |
OutputDebugString('SetProcessWindowStation failed');
- m& x. e3 z# _- U) ] CResult := false; 5 M- ?" D4 P/ o, G
exit; 2 M7 h X/ K" ^+ Z' f' F* C; t
end;
0 P: m8 s! k* U/ U! ~. f
1 V# u- P1 C; M; n4 d3 @hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); ( v) X7 @8 ]* d+ Y+ f @9 l
if hdeskUser = 0 then , A% p+ b" N: y2 L7 n( i! B- L
begin
% n9 q( f! L5 a6 [# `6 cOutputDebugString('OpenDesktop failed'); 8 d( l) ]3 J: a, Y1 W- J0 f
SetProcessWindowStation(hwinstaSave);
# G' \# t9 L& J0 l% [7 M% uCloseWindowStation(hwinstaUser);
7 w1 M) C% h0 v% k5 s7 `Result := false;
3 y& T# _2 u& n) C3 [7 `6 oexit; ( A0 X3 G9 b/ k( z3 }8 \% Y- u9 A
end;
9 t- j+ B( T4 M$ K) X1 FResult := SetThreadDesktop(hdeskUser);
! W. x. \) G8 s/ t6 r S9 Vif not Result then
; c( m6 ^6 w4 I' m3 ^- Y; A; V% q* SOutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError))); * O+ A* W) j" e0 f2 X
end; $ _8 M) j1 h& Y* N3 r9 v
) ]1 A! V5 g( T% h, e9 a
procedure DoneServiceDeskTop;
$ j$ I& F- c4 \/ ]0 U/ Rbegin 0 L2 g3 T5 A+ l2 n' q3 u
// Restore window station and desktop. 9 s8 {( c) K! x' F$ I! [! e
SetThreadDesktop(hdeskSave); # @+ U' c+ z$ E: c& _
SetProcessWindowStation(hwinstaSave); ' x4 u" x! X0 @: I
if hwinstaUser <> 0 then
* f/ R* j" g5 _) j; p2 V# cCloseWindowStation(hwinstaUser); 1 h( r" N" o$ N# z
if hdeskUser <> 0 then
/ _. o) W4 K3 L0 v: W( qCloseDesktop(hdeskUser);
4 l$ W; _& E7 k! F6 cend;
/ E3 c1 K8 f$ [
* Z* I8 k5 q/ L: \" M. finitialization ! Y0 p9 { B/ \/ f* S9 I( w: v
InitServiceDesktop; 9 M6 G n# q; C* ^
finalization
$ p' u/ {. X0 H* zDoneServiceDesktop;
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更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip , L% @% t4 M% E7 Z
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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: % k# {3 d. L( \) d$ g$ Z4 w' v, N
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unit WinSvcEx; g1 a8 T A' m- U/ ~6 J9 v
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interface 9 z# K) T% c8 e1 U
7 V! l, |: |/ ?3 B) n" c0 a, kuses Windows, WinSvc;
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const
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// Service config info levels 1 s; }: o# x& l8 R! I/ S
//
* k0 V2 o8 m5 i S* ]9 QSERVICE_CONFIG_DESCRIPTION = 1; ! q$ a c) i, y
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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