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(1)不用登陆进系统即可运行. . w% \# B0 ]# E# O4 G: W" J! P
(2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的. & D7 K; [7 e0 g- B
" B# h( Y( {& w# b( ~! B$ a 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. 9 _4 a: ]5 k- m, L/ C' p' M/ {
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: ' K$ X0 |3 l+ N( a( e2 [( e7 X
; W6 k2 M) q$ x' b (1)DisplayName:服务的显示名称 : w0 c- |6 P. w
(2)Name:服务名称.
' c% I. V+ b3 E4 i
% f8 u' A5 ]/ Y \( t: r 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. 6 M( Y- m/ Z0 N# Z' q+ N7 J/ i: V$ l
) F j' k; R# ], G
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.
; g! m1 v# Y$ k+ ^6 {9 X5 k' J5 N
$ J0 r8 I2 s' q+ Q 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.
8 _/ M8 ^' D8 H3 V' O/ C5 S
% j( T" U: n; w+ C. _ 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:
6 P+ n5 y }! u. o! L1 Y/ O6 j* ]' T- X1 v1 {
- f) C, U, \% A! j' X4 h3 a
unit Unit_Main;
; k9 w' r3 Z; _# Q# w: u: w! B/ e
. `) \. q# w1 J+ ]6 z% B5 Z4 A Jinterface
: t* x- F+ [4 }. C
! J: b( o6 C/ N( R8 |! Z* Xuses & Q5 w: w9 a: U
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
/ c! J: R$ c7 N' {' f. _8 I
! g' ]8 u7 O. r. Q/ Btype
: b' _+ e% U5 b, D8 xTDelphiService = class(TService) % [) G* a' l) k' W
procedure ServiceContinue(Sender: TService; var Continued: Boolean); & i; l. e: d6 y
procedure ServiceExecute(Sender: TService);
; b- j' @% r; b+ P: hprocedure ServicePause(Sender: TService; var Paused: Boolean);
' @) n; N- ?% P8 O3 Nprocedure ServiceShutdown(Sender: TService);
$ u" _1 @% }. \# vprocedure ServiceStart(Sender: TService; var Started: Boolean); & l! ^1 C1 R3 O
procedure ServiceStop(Sender: TService; var Stopped: Boolean); 6 S: l7 i3 H8 q/ P3 j. b* [
private
8 a9 S- b- J% D& i4 C1 c{ Private declarations }
8 y7 Q; M4 W1 Z, n+ e2 @public 8 B$ o+ Z* c; Q/ O k
function GetServiceController: TServiceController; override; : O) _9 u6 f# L7 ^9 a
{ Public declarations }
& |. j7 h; k6 E( y+ ?. T: Vend;
0 O' s7 ?# |# q2 K
+ R8 n1 [2 c* ~$ Ivar + s1 v4 n9 |, X5 U0 k! n2 q
DelphiService: TDelphiService; : [* l- y( Q+ f, G$ y
FrmMain: TFrmMain; 7 D8 B l& ^2 ]' F9 y
implementation
- @8 H. r8 l0 M1 @) e+ n
0 U: S- q0 q6 ?{$R *.DFM} 3 ?( ~+ C) I( ?; _8 a$ Q
1 t9 Y6 g; t/ Kprocedure ServiceController(CtrlCode: DWord); stdcall;
9 b! H; L2 N# H0 V5 Sbegin 0 d& Z$ G. q9 X
DelphiService.Controller(CtrlCode);
5 t+ U' a' _$ }, p+ J5 J) ]5 @end; 9 s$ ~$ r; D1 k* }, i- \5 e
p' f6 _. I) g: |# f d' H
function TDelphiService.GetServiceController: TServiceController; + k. @4 j3 v0 K: |
begin
- g3 Y* x& z# v) m6 mResult := ServiceController; " j2 z+ v9 l" M6 E- l$ A% u
end;
: C/ c( M) p, J6 Y4 G4 w4 J3 v
* p2 r$ `$ o' p: }) k hprocedure TDelphiService.ServiceContinue(Sender: TService;
5 U4 n% Z1 x+ t; H# r3 |0 G1 jvar Continued: Boolean); - [, P m6 O5 I% _# ~+ ?- j8 F
begin 4 c @5 a9 c7 E; {& m2 Z
while not Terminated do 0 f" U+ \' _' A
begin 9 b3 e% ~4 d1 w+ M4 x1 p" x5 d
Sleep(10);
% X P8 }$ U- {% j+ W+ GServiceThread.ProcessRequests(False);
1 B7 l$ s0 @( p5 O' I. oend; # v- |4 ?% x4 q( I: e
end; $ ]' r0 H; v) K+ Q2 F8 l, S+ W- T- g$ a
$ i" E* T. r( X G0 [
procedure TDelphiService.ServiceExecute(Sender: TService); 3 b8 O. o8 t$ G5 `' L
begin
: Y3 Z6 n' i& V* Dwhile not Terminated do
& U& m; ^! |' x+ G8 _ ?1 h F0 }begin
& f- l. {, d {2 nSleep(10);
, }. S+ Z5 a+ J. f* y1 hServiceThread.ProcessRequests(False);
! z/ x% q1 F; J" j9 pend; , A: j9 ~) A* e
end;
* d! N1 r, |6 B8 E. b3 E; o& \" p, M" d. r4 p6 W
procedure TDelphiService.ServicePause(Sender: TService;
& U8 h5 N! T; H3 mvar Paused: Boolean);
?( L2 F# L+ abegin
9 H0 H+ s' {0 WPaused := True; 3 `+ w ~& x9 @0 U
end;
- r: a; y2 z, `% r; H
8 D3 r7 E3 _' u) H/ C ~6 M# Gprocedure TDelphiService.ServiceShutdown(Sender: TService); 3 v3 w. `7 O$ `& E
begin 2 Q3 S/ F( Q: M! Z8 Z3 _0 M" s
gbCanClose := true;
$ t3 O+ [7 W$ f) }$ WFrmMain.Free;
0 b$ r9 X/ y2 u! o& f, i2 K5 f F2 q1 kStatus := csStopped; % n- J Z- P( u+ ^" r
ReportStatus(); " ]2 L. V* T3 E/ _3 h& A
end;
{+ a( U! S. [7 |- B1 [/ b
/ p; T) F8 c" j( E _( Tprocedure TDelphiService.ServiceStart(Sender: TService;
5 w9 }& `& J/ p9 `* t- _% L* Hvar Started: Boolean);
k/ Z: F1 X; l8 N5 h' Xbegin 8 [! ~; z# j' p; @0 F/ I
Started := True; 8 B, d, ?: F/ [& P0 }0 z# p' S' x
Svcmgr.Application.CreateForm(TFrmMain, FrmMain); N0 s& `) x/ W e* w7 w/ h* ?/ ]
gbCanClose := False;
6 d+ n. {) J1 U8 L' pFrmMain.Hide; * ?. v/ A4 G% k4 b2 G( ^
end; ; t1 F0 }& y7 p4 [; T
4 ]9 E4 v9 g! F% X0 sprocedure TDelphiService.ServiceStop(Sender: TService;
, ^6 {2 D3 V- `$ r1 Zvar Stopped: Boolean);
) N1 t) `# u- g7 \ _begin ) t M, N: Y+ u# g8 P9 B$ \
Stopped := True;
' I! g# k! v( w4 p' s! `gbCanClose := True;
$ M9 k4 l1 J7 U' d! ~/ q# |7 BFrmMain.Free;
" H5 q) r+ h$ |+ ?end; 4 @9 K8 T) v+ x ~4 w$ {
; ^2 J* i' p9 [: g
end.
9 t* M( g$ s, n8 y( F4 w4 p
5 ~8 U( [. }' G9 K; Z- N( Y) n1 T3 c; t e0 H
主窗口单元如下:
% b/ d" `& J0 f7 ~6 F5 T2 T! V9 P. c6 V0 W+ T$ T( L
unit Unit_FrmMain; ' y) i. l1 v [ V) Y
+ X" R- I( l; J5 W7 J8 m% Zinterface 5 y, c2 h7 j, B0 C% K7 @
, }9 `; l* N+ B3 b" Z, n5 v) a# Guses ) A$ [( o4 D. f; u& c
Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, % o$ I l) B7 @: h4 H1 P. `8 X
Dialogs, ExtCtrls, StdCtrls;
, o6 e- p' H" Z- Q5 y
$ q. W6 @5 f6 V0 }const
1 Z# i8 o" j) B8 m0 g0 uWM_TrayIcon = WM_USER + 1234; % L3 Y- _+ D- X
type
* K( q: h) M' M4 Q, |6 L/ NTFrmMain = class(TForm) - F8 i0 E* F3 H1 r v+ \
Timer1: TTimer;
% h2 ~( O# m8 q7 n3 J+ K7 FButton1: TButton; ) q. H% f, `! p( h8 L
procedure FormCreate(Sender: TObject); . U( {! F: b8 n1 P
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
/ y( v6 s1 B! z& _+ x1 nprocedure FormDestroy(Sender: TObject);
) a& J! L7 {/ S; z1 `; ?procedure Timer1Timer(Sender: TObject); 1 |6 K8 B5 h8 C- b
procedure Button1Click(Sender: TObject); 4 @% o* \8 \7 U( ~
private
7 b T1 a( G( V2 p5 C9 S, {{ Private declarations } 4 u8 O8 z) ?: y7 y
IconData: TNotifyIconData; ) I g* [+ o; M. X. T& [
procedure AddIconToTray; 1 a/ Z" ]; ~2 f! u7 Q2 B
procedure DelIconFromTray;
2 |3 c) V+ ?) i% m1 \procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
# z( w9 w$ \ V& Vprocedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND;
4 `0 _/ \. R7 ~, R( j, {public . f# c& w2 K+ L' S0 O0 m# w
{ Public declarations }
4 P" ]& t. m* Q3 q$ l3 Vend;
0 u1 _; D* M. O) [- i% I, y U: Y8 S7 A8 U% D( N
var
9 g: Z, Z8 R$ h6 N5 w" NFrmMain: TFrmMain;
* F5 d; b# ?. C" [0 `gbCanClose: Boolean;
$ P: w# H' d7 E7 }& ^5 w" jimplementation
; B- {4 E" H6 w. M" ~ t0 W1 U2 ]& F0 m, t; t6 o
{$R *.dfm}
/ v/ G; f8 P& Z1 _0 N n {0 @8 y8 t( U6 S* i+ P
procedure TFrmMain.FormCreate(Sender: TObject);
- M y5 m7 N) I% c3 _begin 0 m: E+ T* x% S" ?6 j! s2 \+ P
FormStyle := fsStayOnTop;
' f$ ~) ?8 w# ?# D9 o$ I/ tSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
/ `2 G* {: }% t2 NgbCanClose := False;
' y/ ]# ?' M& P; t& ^Timer1.Interval := 1000; 0 Q! X5 H( X" q
Timer1.Enabled := True; 9 K& l8 t* _; T0 ?/ @! P( F* }
end;
9 B+ ~) n: x8 W- n% R/ o/ q" i
3 n" B! _ Z5 S9 `procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
' a3 H, H7 v$ H ?, rbegin
4 `% Q2 ~8 i; k" VCanClose := gbCanClose; 1 ^; {/ h+ d% @/ n0 I
if not CanClose then / l1 y' m+ D/ T4 B9 p& z
begin , A! s) X. ?$ w2 U( w' C
Hide;
3 N4 z7 I1 v! o" b0 b; q# s& e$ Bend; u4 O' m8 `6 `$ q$ N
end; 7 u: Q# A' l0 \. {) H
6 e. p5 o5 W+ l- Y2 q0 _procedure TFrmMain.FormDestroy(Sender: TObject); 3 b [6 z) s- R, y. _
begin
$ ]4 \1 a, q' g7 OTimer1.Enabled := False;
3 U4 m8 t7 H: }9 e% L" _ F" D/ hDelIconFromTray; + P! l# u0 x& H/ M6 D' X
end;
6 Y1 z+ Y5 [" |- [3 n; t' V" F. h7 y+ Y, s! T! R l
procedure TFrmMain.AddIconToTray; ) [8 k$ Q" q* z, z7 \+ H. V- u) |. y
begin
1 Q0 w+ {1 f8 G+ VZeroMemory(@IconData, SizeOf(TNotifyIconData));
. s( U# [& J- `/ e' N" AIconData.cbSize := SizeOf(TNotifyIconData); . f9 o, M3 D+ @: H7 H# `
IconData.Wnd := Handle; ! N) ~' R& @# J! x
IconData.uID := 1;
8 D9 R$ {6 S; {7 wIconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
" h1 @3 J9 F& ]9 i% IIconData.uCallbackMessage := WM_TrayIcon; ' O* l! N: A; r& S
IconData.hIcon := Application.Icon.Handle;
: h' A! R O# g6 g- H9 f; TIconData.szTip := 'Delphi服务演示程序';
5 G* J* c. Q1 k' pShell_NotifyIcon(NIM_ADD, @IconData); ( p3 h# b# a: f3 Z3 i
end;
8 k: e8 }& E0 F% X5 b3 E) K5 p) e- m0 T) c* M0 B g: l
procedure TFrmMain.DelIconFromTray;
( w- ^2 P" l9 Y* k ebegin
6 W" k1 ?& a) hShell_NotifyIcon(NIM_DELETE, @IconData); ) |$ L+ N5 J: s3 h1 N
end;
2 u# {+ ~4 N" V6 M2 _2 n; X+ v6 u/ _9 F5 T0 O
procedure TFrmMain.SysButtonMsg(var Msg: TMessage); ; u% i7 d+ X. |# H# w1 ]
begin b3 H# h6 E- Q
if (Msg.wParam = SC_CLOSE) or
# H$ O' S1 ^0 b- J(Msg.wParam = SC_MINIMIZE) then Hide
0 x$ }1 G. i- O1 `) belse inherited; // 执行默认动作
; e. W$ \) ]+ A- z4 L: c! lend; : N+ @$ b: \( ~1 V0 M
8 Y" v6 p7 c7 t/ W. I, b6 Z: u
procedure TFrmMain.TrayIconMessage(var Msg: TMessage); * @% L3 A4 V. n" [5 o. P) j' q
begin ! c8 @8 a8 u* r% i" @& m# [% @5 l
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
e b9 e: v& j) ?8 Pend; 4 B3 ~% x6 ^6 {1 _5 H% H
' [; z/ [6 H6 N/ nprocedure TFrmMain.Timer1Timer(Sender: TObject);
$ ^, X6 k# Z& C8 dbegin 2 k6 v! h& @0 _6 Q' |- v
AddIconToTray; : ~; ~4 M1 \, h7 A @& f/ h
end; . }7 c& h) E) p, p( u! i& i
3 h' v6 K* |$ H% i2 ]. @procedure SendHokKey;stdcall; $ h* v2 x) b& v: f, v- v& h
var
" _6 Y A: C7 N- t* {1 \. x7 f7 DHDesk_WL: HDESK;
2 t; ?% V" r7 [: w6 bbegin 8 T: S9 S4 w" N" g5 c# D# B
HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); ! c; D/ e& C0 c- @/ q8 a- _6 W
if (HDesk_WL <> 0) then
& `! q& ^! z6 Y( s" H% xif (SetThreadDesktop (HDesk_WL) = True) then + o. l$ ?2 x5 ~( w$ @8 g
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
# @$ ^9 s0 u+ m4 Gend;
& J! E8 U. r8 E5 @* A
' z o/ G" v; M b. x- X7 qprocedure TFrmMain.Button1Click(Sender: TObject);
* b# z" M/ k3 G. Evar
- o+ s, P8 I7 T+ K+ fdwThreadID : DWORD; 3 e) F6 S" E4 W1 o' u
begin
" n/ Q/ Z' I, V$ K( `3 bCreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID); / I& ~0 A0 F( a" K7 b4 K" o+ c B0 m
end; # v* {. q! N! x/ ~7 w
/ Y. v8 v6 D% p# Z; J1 B4 f% m
end. " Q; t6 t2 j/ }+ u& q0 E8 G% j
* d9 M! W" \& b6 j' v
2 q- d+ p, p( B9 J h3 d% q6 s补充: , n7 a8 a- a, T& 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.
. g) l4 S! L* W1 D s" A6 ?
9 }) d- M$ M Q% u(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.
$ h* Q" T2 f% {4 Z1 m! x( @$ `2 Q4 S! p5 ?% T% l( k# m
(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:
; _9 F4 }5 ~# V4 T6 Junit ServiceDesktop; 7 x5 X4 \8 e8 H, ^
. i4 h9 W: e6 v+ {
interface
- m% [6 i' N6 b, ?0 c0 @0 b! Z( T Z. A
function InitServiceDesktop: boolean;
( ~' P( x. \, m6 oprocedure DoneServiceDeskTop; & J- M7 E" E# g$ j
( r8 T) H3 b6 c" W$ X( x0 b7 \
implementation
4 t# p* U5 q! t/ q4 s" h5 I+ N3 `
uses Windows, SysUtils;
# P: O3 G* h; h" i$ i* j* n+ Z# _
# e0 X- A* _+ {; `const
1 X2 i" m+ }0 u G; {DefaultWindowStation = 'WinSta0';
- U8 s: `, l7 A( ?. O4 {DefaultDesktop = 'Default';
1 T5 S) r' D3 L, Jvar
8 Z) C2 e. S5 U i& I) \$ u1 ]hwinstaSave: HWINSTA;
9 q7 Q( w6 _" r) g* B7 S: U2 d# X' phdeskSave: HDESK;
5 ~. L3 y- w) Z& Z, W( e! ^hwinstaUser: HWINSTA;
9 q5 i& W$ R w7 EhdeskUser: HDESK;
! S" }5 [/ v( y; ?function InitServiceDesktop: boolean; $ G( _/ W& }) {9 k
var / t6 u, q' C! w6 W
dwThreadId: DWORD; / j% k! r; ?8 s- H5 ]) H4 }& B! z
begin
- k2 I) G4 y2 {3 K( n# y. \dwThreadId := GetCurrentThreadID;
' F* y4 J! c+ P% d- j// Ensure connection to service window station and desktop, and
, @$ q" r5 y8 y: Y5 _8 ~// save their handles. K5 i+ M& h5 j. w
hwinstaSave := GetProcessWindowStation;
. I( h. x {7 x" l7 qhdeskSave := GetThreadDesktop(dwThreadId);
$ `: |; c; q2 T A0 D7 s
5 e+ c, g# E7 B/ ?' N9 ~$ x( S8 X) ~: S6 E7 ~' G
hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED); : @ D1 h& q0 j8 ?: k/ o
if hwinstaUser = 0 then 3 m/ W! x$ h+ M
begin
4 G* N/ O9 t4 a0 h9 eOutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError)));
# s8 C3 ?) l6 \) S- b4 E) q8 ?Result := false;
- B# _( n7 w8 q! h, h/ p/ U% N. M) Hexit; 2 f% `7 r, A: v. r
end;
5 y2 h, U T* R; C
+ m# L4 l# y; Jif not SetProcessWindowStation(hwinstaUser) then + V6 E! ~& S% Q, h w' n
begin 0 ^6 y2 P1 B+ P& H: O1 Y& B$ b5 M
OutputDebugString('SetProcessWindowStation failed'); $ U. N4 Y) K/ l( w2 i, T
Result := false; . s" t" f. Q# W: ^7 s7 X2 d; B
exit; : D5 [1 M6 E. ]! `1 S _1 g" f
end; 3 A5 F; |0 z* g9 ]4 A
; s; X! P1 M9 ]" f
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); 7 ]: b& p" V9 \% H8 d: T, R8 ?
if hdeskUser = 0 then ' ]! A# @! f. y( c6 w5 b
begin
: [8 w1 x! g0 i4 OOutputDebugString('OpenDesktop failed');
/ k5 {4 g f8 C P1 e w( d. {SetProcessWindowStation(hwinstaSave);
+ A8 b! }! h: `CloseWindowStation(hwinstaUser);
: g% a9 @0 q& r9 T* dResult := false; 6 b$ t6 Z$ b: B7 f" r4 t/ a* f ]
exit;
/ N- O6 p; O! M2 hend; " O* D) _1 Y) R1 O5 n1 y
Result := SetThreadDesktop(hdeskUser);
/ }2 H. [* n1 z2 M5 pif not Result then 9 D: U# \5 @9 G q: h4 Y
OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError))); 2 W4 a( z3 T* o6 v. j
end; % ]/ w$ c8 t+ U. h$ M
; X, K' ^6 j. {1 [6 f E3 Lprocedure DoneServiceDeskTop;
" C6 c# Y) o7 a+ Y$ abegin ) j- `3 V$ f1 o) b9 `0 A0 A! j
// Restore window station and desktop. 3 C$ f8 N d& ~8 {
SetThreadDesktop(hdeskSave);
3 t& O2 y* x( v/ S rSetProcessWindowStation(hwinstaSave); 7 v" r p! F8 e% d6 y0 E$ F* Z
if hwinstaUser <> 0 then ! ^! O c2 V6 I/ Z2 P7 T8 ]- u
CloseWindowStation(hwinstaUser); ! b" t* X3 H! [, Q* y6 y& g$ c
if hdeskUser <> 0 then
' ^: J* |+ ]5 u9 \. v4 I& l+ q3 J# NCloseDesktop(hdeskUser);
* G1 t. P' h9 T v) V# A: Xend;
9 ~5 _* A' P0 f
! N& b; J6 g2 \* n' d* t: b9 Zinitialization
$ w! L( A5 ^: q; \/ w; gInitServiceDesktop; , c3 }' |; _0 U
finalization
6 D* B. u" C* J) i6 DDoneServiceDesktop; . H- j# b2 O* v, e' P* }. \7 c# h
end.
! H. x! j5 G2 v9 j- O' 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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9 L+ G. m# x' g% o: z' X(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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2 m5 z2 h% x- k: p2 yunit WinSvcEx; & H. w1 X& v0 ` w
! T ?. \# i# Jinterface 8 T/ r& F/ \# I* u
' _; _+ P! w5 z* q4 luses Windows, WinSvc;
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# o" ~' D J$ g. U6 Jconst 9 N4 q# V1 d, [. g4 C6 K N2 ]9 G: P
// 7 ~! b% n) z% K+ p! s. O. J
// Service config info levels
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" a- R$ U9 t& P; ^2 C; K( iSERVICE_CONFIG_DESCRIPTION = 1;
" l' b5 R: \* [# XSERVICE_CONFIG_FAILURE_ACTIONS = 2; |
zan
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