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(1)不用登陆进系统即可运行.
4 b6 @: J6 y) \+ s! e* 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. ' V/ Y( P( C/ x$ x/ [# l
$ E; o" ?7 Z, F) b' n8 ]; Y/ n
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.
! \6 F& U7 C: R, F. n% o( N1 v 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: - T5 {/ x6 i9 i3 Y# o
8 f! c! B+ J' s% B- i% W
(1)DisplayName:服务的显示名称 6 e g3 J9 r% V* [
(2)Name:服务名称. " l( K0 \ g8 |% g5 b! L( H% L
- `5 |) c X/ F6 `' i& }; _. \ 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.
) D1 `! c5 V. ?0 P# ?! l& ?4 s) j- C( \4 k
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.
5 y* M" |& `1 k; Y. X+ y
4 u0 f, U0 c- B" P! w+ G$ S 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. ) J0 r, g( h, p% {+ Q
1 a9 @, L3 d1 {, k+ _6 q! }- Z
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: . v/ {. A% w: L5 u
6 w& |% A; U4 D8 |# `, ^ B' m% U& n# g+ a" a5 s; F* ^
unit Unit_Main; * g* Y7 Z1 \! k: a# X6 V; [
; I' Y8 t6 U7 u& o4 O
interface h4 O, \% L$ ?3 C y
' ?# E {! G9 P% l0 Z. `
uses & L2 P \9 G, F. R. S0 ^5 n
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
9 M6 G/ H- X; F, {+ r7 K2 o6 H% _, x4 }3 x# D. g6 Q% Z, p* U7 K
type 4 b; j, ~8 I7 M4 {+ N* _5 h
TDelphiService = class(TService)
% Z0 m0 O4 C- t. E# g; Yprocedure ServiceContinue(Sender: TService; var Continued: Boolean);
& X3 B# N9 G7 c) Wprocedure ServiceExecute(Sender: TService);
, f$ N, U" ]* k/ j+ N/ d# vprocedure ServicePause(Sender: TService; var Paused: Boolean); / t% t- i# R; c. ?
procedure ServiceShutdown(Sender: TService);
# L+ Q! D3 E, ], h4 b) [: U3 Q" `# C2 ~procedure ServiceStart(Sender: TService; var Started: Boolean); % i! f# O/ ~# Y
procedure ServiceStop(Sender: TService; var Stopped: Boolean);
% s. y$ j% U0 x- c* Pprivate
) @( V% O" Z, t, Y+ t2 z) ~{ Private declarations }
8 `; o/ G% D8 k) _public
$ U) \ {/ O. Vfunction GetServiceController: TServiceController; override;
- i/ a2 | [0 V{ Public declarations } ( s5 W9 h1 v2 d5 b
end;
) f* l9 l o4 J& B% |
9 U4 r' q8 f0 F1 }5 X* ~5 G$ U6 vvar 5 A8 O; @! B/ A9 K# o
DelphiService: TDelphiService; 3 C8 F# T+ m: M+ m$ s' z! Z' O
FrmMain: TFrmMain; : R# v% _! m0 F8 l. y8 L- l9 q
implementation
# J) }( l e% i1 A! g9 @2 M/ @5 u$ A6 H; Z6 K9 n$ J+ h% A
{$R *.DFM} 2 x6 `6 Q+ x( X$ I+ h/ t
* k# o9 d+ V+ o( ~0 S0 Z4 uprocedure ServiceController(CtrlCode: DWord); stdcall; " {& ?! w" a( h" P( B9 h
begin
; P, Z/ u( p' w. [" iDelphiService.Controller(CtrlCode); $ g1 F# E1 G; G3 H" u# [
end;
7 @ W9 d' t G" }8 _" y: P0 }
0 ]0 ^& B5 h# @% ` { q0 \function TDelphiService.GetServiceController: TServiceController; " d- m$ V( {6 b# N
begin
( p# e- J* V( |1 P1 OResult := ServiceController; ; _ V+ l- k. V4 W# R
end;
, Y: E0 s6 R5 y" @! v1 y& c" |8 M3 y# {& V6 L7 H* Y+ V
procedure TDelphiService.ServiceContinue(Sender: TService;
" O" |5 q0 W+ ?& U7 N) o: z3 gvar Continued: Boolean);
# l1 \4 ]0 T* G* hbegin / J! b* A2 R& M* Q5 \
while not Terminated do d: _: i' U6 `' _
begin
8 ?( V: m# e. @1 T! I# KSleep(10);
2 d, d+ m7 [7 L t8 h/ FServiceThread.ProcessRequests(False);
( E$ k* Q/ ^% ?: }4 n6 cend; : u( S. D# `, a. E1 D" [
end;
0 ~9 C7 c6 W7 S/ q# k S j) A! O V$ A
procedure TDelphiService.ServiceExecute(Sender: TService); % ]" H" L* f' e. K( f) ?
begin 0 h: a! {% f- C* y) \" k/ M6 r
while not Terminated do C$ D7 f$ H ~0 \) t0 `
begin
, t0 Q* X; }5 {+ f3 q. d [Sleep(10);
& O5 g6 K- P# S) S7 zServiceThread.ProcessRequests(False); ' x" a% d) a1 Y" |. n
end;
1 o* i7 S% _) C3 H6 gend; % c! u& A4 s( e8 e- G5 A- l1 B
+ s% D* u: h2 d, Y# ]4 A
procedure TDelphiService.ServicePause(Sender: TService; [ s' u& a8 z% B5 e
var Paused: Boolean); 0 {6 W5 s( G% V' ^6 D3 H4 W
begin " W5 D: M& B: |! v5 X
Paused := True;
% ]- K5 x) P" m3 Z2 F1 R) |end;
% Q0 e* p6 I9 D$ p& P. ?4 b0 o
procedure TDelphiService.ServiceShutdown(Sender: TService); 6 z+ a* Y( l% A6 ?+ R& \
begin
. p9 J* p, U4 Z1 j+ l) u% WgbCanClose := true;
- b* \5 Q- z5 D$ I( ]FrmMain.Free; ; j0 p3 G! H8 C3 G1 Z. Z$ d, G
Status := csStopped;
# N" E5 f6 n' D1 AReportStatus();
+ v2 Y7 I% q% l1 E- [( U' R1 F: o$ rend; + s* l$ m& J" j; T/ m" c/ i/ p6 a
* E! Z3 W# c3 H$ pprocedure TDelphiService.ServiceStart(Sender: TService; - `) Y. d( P, ~' p" ^( n/ G/ T+ S
var Started: Boolean);
; ~* i/ V& w' t6 N A- ~begin
P2 E. |/ c3 L0 L4 C0 K& A3 e$ KStarted := True; ; y# j5 D9 @! b' N6 l% q
Svcmgr.Application.CreateForm(TFrmMain, FrmMain);
1 |8 `, ]% G+ Q. C* @gbCanClose := False;
( X7 v4 e8 d# P" ], N C6 qFrmMain.Hide; ; M! Q( O5 b* ?0 B: M3 i
end;
6 A m% `( _/ k7 j+ Q/ a2 j2 Z
1 ^+ i/ p" u* C7 O: w' _. z+ Cprocedure TDelphiService.ServiceStop(Sender: TService; 2 N. W/ D. ~0 i/ U7 o
var Stopped: Boolean);
' c) j( f+ m+ I4 N8 f9 _7 Mbegin
: v: z/ ]& J$ B6 s' l- K. ]Stopped := True; 0 }' x, D# H \. [) t" ^
gbCanClose := True; 0 X1 w6 ?; W, p
FrmMain.Free;
4 k$ \% }( Y* U/ M! Qend;
; f2 { N% K2 k# y1 N Z2 K; E, x/ B- v/ F3 l# q
end.
+ T; ]6 [5 l# [$ P3 Z: r( q
% f, P. x9 m; F; w+ R9 M5 h
! J8 _% Q! W0 U7 p, n: q) H8 i. P主窗口单元如下:
& z# D% S; a, M9 j# H
9 Y: G3 I0 K, t9 ~0 D: Cunit Unit_FrmMain;
$ N" h; b% p8 J+ H5 V0 ~1 o3 j, o& R4 H& S0 q
interface : ~5 L! f8 O$ w6 l: E# R
' d" B# b4 ?1 j: R6 ^7 o. w, ?
uses
7 e$ S! a' }- j( hWindows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms,
6 j2 b: {- m4 h# b+ zDialogs, ExtCtrls, StdCtrls;
9 m- _. F; V7 `, z4 q5 r8 Z
+ m; f9 \$ x1 T7 a6 Uconst
/ s" ?/ }" ]/ f6 L# A! g: b# DWM_TrayIcon = WM_USER + 1234; " @( g( H& d$ d' T u; \
type
7 P1 U& x9 U$ r7 n, E& y7 lTFrmMain = class(TForm) , J5 \9 Q0 ?; P" d+ c" x
Timer1: TTimer; 6 x& M; A/ @2 L7 H- O9 Z
Button1: TButton;
* q! G- s2 H( X) H6 b- }procedure FormCreate(Sender: TObject); - s ~) P$ `, a, g. O7 Q4 G
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
( g" m6 I' |# ^, nprocedure FormDestroy(Sender: TObject);
p' z9 r. b; }! j5 t2 m5 eprocedure Timer1Timer(Sender: TObject);
" p" h( m4 [$ k4 i/ Y6 @0 Y$ oprocedure Button1Click(Sender: TObject);
' H8 @0 Q; w0 C& Nprivate
1 C. l6 o$ U' u$ g d{ Private declarations }
! ?5 u! Q3 k+ L$ Y oIconData: TNotifyIconData; # J# h3 t8 |( R ~# {% O
procedure AddIconToTray;
% b" W3 k+ P0 e1 q( e$ a, }procedure DelIconFromTray;
6 j) [7 s, H- Z. r' a& f( \5 Mprocedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
% L; M+ Z3 D) o0 n# H0 Mprocedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; 9 r- ]% x% [2 q6 Z
public
% L7 j/ F5 l) }$ s$ B3 \, L{ Public declarations }
$ B! G" h# N4 |end;
" A% h" y! K- j) a) f; S/ z+ ? ~1 @0 D# w& X% {- e/ h' r6 T" u
var
$ N/ a. n+ l! H2 m- q/ f# r; X2 ZFrmMain: TFrmMain; ' Z3 A$ r' |( y+ v7 y R+ b m5 j8 I
gbCanClose: Boolean;
8 c4 F0 D/ ?3 f3 C. [9 u& dimplementation
9 N4 ` `6 R' ^- }( b% y
1 L" G3 i% H4 p3 }' h{$R *.dfm}
7 D* |7 ~" E+ U8 _; ?1 i( a. D' n( @1 I5 s6 m
procedure TFrmMain.FormCreate(Sender: TObject);
! X3 G' X C2 n, z. F2 pbegin
& T+ `# y/ `& I9 R, `, ~FormStyle := fsStayOnTop;
3 ~5 l& I. i) f) k. C) i- _; V' vSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
# h( N6 c/ V* K' k. ?gbCanClose := False;
" j. t3 h$ S, U- Y5 m" Z" s8 ITimer1.Interval := 1000;
2 c* Q# H, f; C$ e2 F0 S, RTimer1.Enabled := True; ( [4 ~ `8 D3 @8 ]* ?3 J1 c
end; 4 p2 a$ l3 G5 _
# j. j3 k! I( u6 y! u1 E/ ~procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
+ p$ f. y4 j$ l5 [: Q$ _begin
Z( b$ }) U& b, n' MCanClose := gbCanClose;
! J% ^/ z* \* G3 X; P" `' x/ Lif not CanClose then + h% y7 U' |. V! b
begin
% A D2 d! w! E4 ^ K# {8 Y; UHide;
- f/ R$ d4 o% I) _end; $ l( [+ ~9 C; x- B# B
end; 1 ~2 |1 I6 J- \ A1 I, |
, e( N- \+ I6 v. F
procedure TFrmMain.FormDestroy(Sender: TObject); 4 `' A( l3 H i2 B0 \
begin 1 ]: O2 Z6 w/ R7 _4 y# B' \
Timer1.Enabled := False;
" D. A% M$ Z% V5 C$ x$ eDelIconFromTray;
- d! }0 l6 d. K7 [2 Iend; $ @9 |( J$ C5 V$ Y1 Q
( C. e. c; T$ Y& O, ]
procedure TFrmMain.AddIconToTray; 6 u8 H5 b, u/ _0 Q5 X
begin 6 d _. v2 o( }, c8 n( n
ZeroMemory(@IconData, SizeOf(TNotifyIconData));
0 Z" O1 c& N* {, v/ QIconData.cbSize := SizeOf(TNotifyIconData); ; z, y2 B5 Y6 O+ `" X
IconData.Wnd := Handle; . B% @* q' U. i# U& T2 n
IconData.uID := 1; 3 n+ N6 v4 Q- ?/ `
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP; ( Q3 p# O) p* I% D- y ~
IconData.uCallbackMessage := WM_TrayIcon;
) ]% H! y/ x' \2 D- H. SIconData.hIcon := Application.Icon.Handle;
" q) B8 M0 h- Q" y( Q. a" W8 UIconData.szTip := 'Delphi服务演示程序';
2 S' ^' f7 ^; J5 ^; }- Z8 s1 I5 NShell_NotifyIcon(NIM_ADD, @IconData); 5 x# [3 g' r6 W' v
end;
5 S. z8 J5 g4 V7 E6 d, `- `6 @1 b5 W+ O/ D. w( P' t
procedure TFrmMain.DelIconFromTray; 8 X9 H4 U3 }/ K. l3 t& h
begin
; O) ^$ f% p9 n; T2 n5 kShell_NotifyIcon(NIM_DELETE, @IconData); 6 F) }0 `4 q4 V, {6 I, T+ |$ [
end;
: F0 j4 W3 a4 p4 j* M! }4 d# @% b4 _3 y6 ? w
procedure TFrmMain.SysButtonMsg(var Msg: TMessage);
o7 C( i5 ?2 {& fbegin
$ K3 f3 O% j! n& [if (Msg.wParam = SC_CLOSE) or
% {3 \' }" U' m/ w5 G(Msg.wParam = SC_MINIMIZE) then Hide , I! x5 q. c6 @ T: i. V$ Q
else inherited; // 执行默认动作 & v0 a& ~. o) ]4 a
end;
0 J5 s% R/ t* q( K) K' C
4 l& g( U8 q1 }: J) X, a+ b# N5 @9 o( Tprocedure TFrmMain.TrayIconMessage(var Msg: TMessage); 5 s( F& _6 c k( x5 b
begin 4 D/ [+ t/ N5 V! ?# u/ S5 t1 b
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show(); . d. P: u O0 o
end;
8 E m# L4 j( {$ d; u, h; {# U! o1 j
procedure TFrmMain.Timer1Timer(Sender: TObject); ( }6 i+ H0 G+ t) o" V6 z
begin 4 U$ w* i, h( I
AddIconToTray;
6 H# M9 D$ f1 V! u' Wend;
% l1 m0 ` O0 G9 \8 p4 i+ T% X$ n) q2 }9 R* v, `5 O
procedure SendHokKey;stdcall;
7 u0 T3 D; B# S1 S/ }) a- ]9 m' rvar
% |! {* C: _, _1 t# x: h. ]HDesk_WL: HDESK;
$ U9 Y5 }; }) }4 rbegin
2 m& L) K0 w% P' V" \5 kHDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK);
! m/ o; v4 n7 H. B& ~if (HDesk_WL <> 0) then & Q. d. t% @+ [! w1 N! @
if (SetThreadDesktop (HDesk_WL) = True) then , s0 C( B2 O( \
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
4 ]! R5 p7 Y9 k! v$ X: y# h2 Kend; 4 m+ _2 r9 {7 s" b; U; m/ _
( f- S4 @1 T( {. ^# u2 L
procedure TFrmMain.Button1Click(Sender: TObject); 6 X6 V0 |8 M4 W/ U" T
var
8 t; ]4 ?* r/ w+ f6 H5 \1 odwThreadID : DWORD; . j/ u& F) j1 Y- _! Q
begin
+ D6 ~0 l8 C2 x. N7 s/ k! e5 g5 W. i3 b3 QCreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
& U( J5 N3 Q! F# W5 I: h' R; _end; " J3 @: @4 ?/ x- v A5 v# e
& y# R. R: r p* W, Y' i& M
end. & A, i, U5 \2 E
0 f7 v( o7 y4 C Q& t( M% T
, B8 I( P4 {+ p" I) W补充: ' Y$ a3 _" ^- g2 T0 f) x
(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. 7 {1 E1 r# \. o
4 x3 M, h: l* d. K8 l4 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 d) o {5 T# b- w; u2 `- P( t1 W' y' ]# P. T
(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:
0 x3 h, J. S/ ?: m/ Wunit ServiceDesktop;
W- f, G- S( W0 E3 K' z% f) u( b- H5 ?+ W! E+ H
interface
4 i$ l/ e9 r& k5 k& p
& r* ~1 H: d0 Dfunction InitServiceDesktop: boolean; 3 [& _1 G/ ^0 ^ I1 I
procedure DoneServiceDeskTop; - ?3 o( o7 f* }5 e- b" O
. t- F3 D# |* Y9 Kimplementation ! O/ V+ v0 _" x
! g: x; N, I4 s; [2 Wuses Windows, SysUtils; 7 T/ c4 K- L+ W: V
6 s: S, z' X4 N: p) h, N, Z8 \! z
const
2 h, |7 j K' f; e) {# kDefaultWindowStation = 'WinSta0'; ! k; e4 I! g& x- q% t: M
DefaultDesktop = 'Default';
. ]8 v, G% B( U$ x9 w7 Yvar
" u( r8 t; f4 `hwinstaSave: HWINSTA;
6 ]! w! i2 f/ B7 \hdeskSave: HDESK; ' v" ]; _* @8 C# R+ e
hwinstaUser: HWINSTA; % T$ y! q& [0 D1 o3 E, J
hdeskUser: HDESK;
: V4 y* S# T" k" |function InitServiceDesktop: boolean;
4 p% C# r8 x' Z a7 N8 nvar
" p+ _6 D0 R P& adwThreadId: DWORD;
6 X# P9 U& P( U2 q4 \begin
, B1 o$ Q8 N) d) T7 d: CdwThreadId := GetCurrentThreadID; 4 B4 `/ p) S1 T4 y
// Ensure connection to service window station and desktop, and
% M- } W( ~5 {& W9 T1 ]0 X A0 u// save their handles.
- {- ?3 h/ D5 r) C6 f2 VhwinstaSave := GetProcessWindowStation;
: ^0 j% S3 }9 o0 yhdeskSave := GetThreadDesktop(dwThreadId); 9 x3 n6 F! [& J% I6 v7 `, `- u
) n/ L6 L- L0 q) d# \
/ Z6 S. _ P. @7 l, |% j3 ChwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
6 T6 U% N: _5 E" L6 P, Bif hwinstaUser = 0 then # B% P1 ^' r1 q$ f' V; G
begin 3 f1 ?7 x7 o7 L- r
OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError)));
. L* i B( j8 A+ U5 S `$ {Result := false;
5 w2 p. s. v& V6 v# H8 |exit; 8 F: C9 h" K$ c
end; 7 a9 Z, g1 G M. [: X0 S
+ E& O/ r5 b$ \6 C7 o9 nif not SetProcessWindowStation(hwinstaUser) then $ q& W+ a! [' K
begin T; F5 ~2 F8 ?3 g/ y* d: ]
OutputDebugString('SetProcessWindowStation failed'); ; M% P! N" v8 [8 k/ Z& p
Result := false;
; k l2 \: ^+ @. n/ H- sexit; . X' F8 H2 [. M
end; & k' }) a. w! W+ ~9 R% @- P) o
, l# B' I7 }$ s( @6 k5 X2 GhdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); 1 w4 H0 g4 {: z" @& c8 K
if hdeskUser = 0 then ; o) R6 S! {% F5 k
begin
* r- u* e7 c7 XOutputDebugString('OpenDesktop failed');
/ a+ F1 P* [7 bSetProcessWindowStation(hwinstaSave); 3 V) r: W9 \; @% Q( L3 w0 d4 i
CloseWindowStation(hwinstaUser);
4 x+ K/ Z! ^4 b$ c c, LResult := false;
. I( a9 A+ i8 r9 b1 Rexit;
2 R j; e- V- N+ q. p! zend; 9 Z* Q) F3 m2 P0 a
Result := SetThreadDesktop(hdeskUser); * q N' s) a9 B! M {9 i: I
if not Result then
* s9 w! H0 {9 _; C8 R% COutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
A4 c) D1 m* T0 lend; ; K8 ^3 y. P* X
4 V. m% V9 v1 S, d- I/ M
procedure DoneServiceDeskTop;
( E" [; P7 Y) z& Q! lbegin ( o/ ]- q( T! B. x3 q& r
// Restore window station and desktop.
6 a2 U3 ?' E5 D aSetThreadDesktop(hdeskSave); 6 h4 r' m8 t9 r
SetProcessWindowStation(hwinstaSave);
H1 @6 h* E% ]& o& I- mif hwinstaUser <> 0 then
+ \5 ~/ U% F( Y( ?CloseWindowStation(hwinstaUser); - M) I+ a8 C$ H7 I" k, j8 W
if hdeskUser <> 0 then
- l- C( }7 x% ~/ m( PCloseDesktop(hdeskUser); 4 ?% K q9 K7 ]5 C
end;
m3 N3 M. X8 `. ?/ h1 X1 w
9 k$ V4 ^6 V$ u3 z) C: Q) cinitialization 1 }: Z* v8 I6 [/ }& P- ~& e" S
InitServiceDesktop;
5 o1 {, Z8 j# L bfinalization : z( W F9 ~; ?0 [8 N6 [& p! x6 Q: h. W
DoneServiceDesktop;
) L7 z2 k% o' n' i4 R6 C- ~, xend. % U2 d$ B. I) B- X" m u
更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip
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3 O: V! \! M( C: j! X2 E(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: $ @3 l1 M- w% }, }) z; {
, @+ c! b* i2 [- t3 z+ D8 Lunit WinSvcEx; , S1 ~% t! ^! c* s3 S# {2 X
$ C1 {) _! j, c2 {" L
interface : R+ H3 r8 w. L* Y2 C
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uses Windows, WinSvc; & o% s7 E4 k6 Q1 D3 ]. m
( F0 H6 F- ]9 d, M# Tconst 0 |) y3 y9 s2 Z! `+ e# A
//
- e% O& ~+ Y2 b8 a, l( q2 f1 ]// Service config info levels 5 f& `" x) c% W( M
// 6 p4 V/ j( z! |" T% w8 d v9 |* F# D7 }5 i
SERVICE_CONFIG_DESCRIPTION = 1;
: W: M- \) I' |SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
zan
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