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(1)不用登陆进系统即可运行.
2 D7 A0 T+ V/ p- ?- _' 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.
8 F0 ]$ v/ M. ?8 [, d" E
) t+ L% p! e) e7 x* [ 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.
; i( r f; P! e; z3 n* E/ O 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:
U, A0 t9 L+ W5 ?1 ?- P
2 a7 s5 z( J' u (1)DisplayName:服务的显示名称 : s) ~. a4 a. R# A
(2)Name:服务名称.
1 { ^& J9 @1 \6 ~# W* B. O% b
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. # ~0 g/ L" P* D' l
3 G2 X }: u+ m% U 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.
" O9 p6 P, H4 M" i6 V9 S+ L5 W- }" f, d
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.
- I8 R1 q) o& M0 F$ f2 n9 r6 w4 \
; f: h+ S. Q1 Q4 d, G 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: / ?3 Y! Y' v) J
; U' C5 @% B% l% l2 B) p$ t! i
! c. _( d1 {) u; b& x8 N
unit Unit_Main; * c+ x9 s( p" B2 ^7 ?
9 I$ I/ m8 a# B% ]9 K) [8 c) Zinterface 7 v, n% a! I4 v1 B
! C7 @2 ~' D6 {5 ]# m! kuses + d# Z. e" ^, q2 O1 w3 {
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; 8 S- r3 o& m& e* M1 y& U' L3 h
s, C0 n+ B' }( q$ r
type
! ~6 G/ {% t/ c6 E9 ~TDelphiService = class(TService) 0 G+ [ m( N2 S2 Y1 @& S, A
procedure ServiceContinue(Sender: TService; var Continued: Boolean); . g1 K$ ~, v/ i b" a4 B4 a5 L
procedure ServiceExecute(Sender: TService); ! |) |9 P' H& E: k) g
procedure ServicePause(Sender: TService; var Paused: Boolean);
3 H, }7 @) _* ~2 y- b6 Cprocedure ServiceShutdown(Sender: TService);
4 Q$ c* \* G: @6 ^procedure ServiceStart(Sender: TService; var Started: Boolean); 8 Z( b" H1 l. V% h# v
procedure ServiceStop(Sender: TService; var Stopped: Boolean);
* d, D+ J: F. p" H( c! pprivate
# N0 G' Q: s% H" c6 p* j$ c{ Private declarations } 7 q0 j& O) J3 l* G/ L
public f3 E7 q! n x0 o) `7 U
function GetServiceController: TServiceController; override;
) `; z% E; d5 _' o{ Public declarations } : s# X7 t0 L& S$ t1 q9 i$ c
end; 4 X* ^- J+ j7 i8 U5 ]
* c6 |! u! f/ j C$ o
var
3 R2 ~. r/ ?" v% B9 k- k% Z8 T7 yDelphiService: TDelphiService; # c3 o5 I5 T5 f7 }' ~, ` K- C
FrmMain: TFrmMain; 4 [1 g% v& ], I; w
implementation 3 k; O" s8 [' \; K
$ ]! b: i& E- k9 H
{$R *.DFM} " ]2 H. b' \8 t L* v
, T2 _ z, c1 w
procedure ServiceController(CtrlCode: DWord); stdcall;
9 F! z" t# p, J+ V& o$ h b( e. Gbegin
3 S' M5 h2 ^$ o( T7 l/ T T& X1 q: CDelphiService.Controller(CtrlCode);
, p& R& a; e9 H2 a# Lend;
# }2 e4 ?% {% M5 g3 A0 ?- ]* Y. O6 w; r! l' x3 }: j
function TDelphiService.GetServiceController: TServiceController;
) i4 j, G. x7 z4 ]begin ! G0 E% S3 y5 B7 z. t) H7 L
Result := ServiceController;
7 u. ]2 t' p* a; wend;
9 g$ N! t; F% a4 o9 ]
7 G7 P" d4 Y, [$ }# j9 C3 cprocedure TDelphiService.ServiceContinue(Sender: TService; ( t+ I( Z$ X" F9 W
var Continued: Boolean);
6 y( O8 h0 a* e/ Dbegin % d8 i" u: ~+ o& @% a% f
while not Terminated do
$ ]5 M z9 h1 c* Jbegin ( D/ F8 j6 X/ K- Q- s5 Z- l
Sleep(10);
; W8 o) R2 A7 O! RServiceThread.ProcessRequests(False); 4 f* ?; T! }/ L: _ y+ E
end;
" y2 f/ q8 z3 f& o$ M% ?4 O: qend; ! Y- G! W" m' t; F
/ T& i3 e. N3 Kprocedure TDelphiService.ServiceExecute(Sender: TService);
6 @2 f* u* T( o4 [0 Nbegin
! o; X: k* b; ewhile not Terminated do
! H. l5 T6 ^/ u) j1 C* _# K+ c: ]begin 5 ?( g, @1 z9 H" h3 C
Sleep(10); / V/ t/ X& x8 F- g& F7 J3 b
ServiceThread.ProcessRequests(False); , ^) A2 X0 z4 {% W; O$ \9 T
end;
) e+ B" H& W) G) p4 B: N. bend; 6 y8 B) y% b- H% b/ u
- B, [* s7 o2 }, K' Y
procedure TDelphiService.ServicePause(Sender: TService; " ?# \' r! S2 l
var Paused: Boolean);
- q# o" E: \1 z3 f1 Kbegin
/ Q" P: ?2 K; c; d, t' A( L0 SPaused := True;
$ J& i+ Y& i8 h; Aend;
( j% B8 R2 Q8 c& V2 F, F! l4 k
. h0 D, _% k( o9 Q0 ` Tprocedure TDelphiService.ServiceShutdown(Sender: TService);
/ [4 ?5 _4 p2 |begin
! i4 j1 z. Y3 h/ n) [* Q' DgbCanClose := true; * \8 x" x( x' H" F8 n' y
FrmMain.Free;
5 H5 E& x. ` i' h( C9 J8 ^Status := csStopped; 9 P1 W8 z% \1 h( f4 \, W& `
ReportStatus();
/ R9 ?- ^% S1 ^& d1 V7 _! [end; # z) K. s4 K; C& p4 ?
$ M. @+ z( c8 N3 |procedure TDelphiService.ServiceStart(Sender: TService;
0 ?" L6 H0 ]0 B8 R9 ^0 T9 Z( Cvar Started: Boolean);
5 `% w3 ^8 Y# x7 {; v) X Sbegin + j- ` u; }! ]& `& {: E% Z
Started := True;
0 D% Q# W4 g n7 [Svcmgr.Application.CreateForm(TFrmMain, FrmMain);
+ b" B: Z3 s5 i4 `4 i0 M+ ~) AgbCanClose := False; ! [/ a# F& q3 `- d
FrmMain.Hide; ' a' K1 w+ y6 Y0 c1 R, p$ w8 r: w
end; 4 K5 [6 z6 z) A) u
' x* ^, X2 q; h6 J1 C; P
procedure TDelphiService.ServiceStop(Sender: TService;
# u0 J9 O2 X' @var Stopped: Boolean);
$ C2 b( _: w9 d: U+ L" k- W$ S5 G9 ^begin 4 P6 Z$ M) R7 T. W/ v+ w
Stopped := True; 0 }5 }( D' w, t2 A- I
gbCanClose := True;
7 Z% H7 n' W) V! e2 s# u, cFrmMain.Free; 0 e3 M1 P6 Z0 i2 g" W: m
end; $ G9 {( V3 M/ P/ @* W3 r
0 k2 M% c6 R* L9 u
end.
: ]1 ?6 B" e/ G' Z2 Y8 Z$ {& ^; l/ ~2 P
) U9 I3 g- c: t4 _
主窗口单元如下: 6 Y' p" P" N b' \
F2 a* r& \5 W: ~( O sunit Unit_FrmMain;
7 i5 l4 f5 X. c) \7 T, c3 } y( g8 j# K y0 P! s( @
interface
) _, d; g0 D7 |. c( K7 \! F9 L" ~4 g+ r' M
uses ; U) }8 A! i7 \
Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, ( l# X' [( X8 P0 y
Dialogs, ExtCtrls, StdCtrls; : X$ b2 S* G% F" h( s4 L1 s7 `
! h$ O9 s; Y9 \0 C! Gconst 5 |' ^+ G7 O7 v& @8 Y% L1 M) W
WM_TrayIcon = WM_USER + 1234; $ Q2 S; S* a1 ]3 H. t3 ]4 a
type ! P: P% `& j% r6 r; V. E
TFrmMain = class(TForm)
. h- {$ ^6 a! o7 PTimer1: TTimer;
7 T2 t* y# n* q; RButton1: TButton;
0 @' u3 d( j( k3 ?0 H7 T" oprocedure FormCreate(Sender: TObject); $ O1 L2 M' b6 d) }. D) n- Y. X
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
% x$ t/ ? n, wprocedure FormDestroy(Sender: TObject); 3 W- O6 v: d, z
procedure Timer1Timer(Sender: TObject);
5 J! e( O6 e) v6 Aprocedure Button1Click(Sender: TObject);
0 C! O. G4 Z8 [$ T% S4 rprivate
4 \* k4 M4 I1 s/ o* b{ Private declarations } / c) b, r1 N5 i& @
IconData: TNotifyIconData;
: w* `2 r7 D* N0 f9 mprocedure AddIconToTray; 3 I. l; c7 S* y! ]+ A0 o1 f
procedure DelIconFromTray;
& o+ c6 d% g+ g. h7 nprocedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon; 7 \- s5 N- }! r7 B4 } F8 i
procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; ( F, I. ?, Y1 Q, J& I6 o0 c+ X
public 6 a0 C; D- ]8 T+ A
{ Public declarations } - J' i# Z" j( ]1 V) t2 U7 M
end; 9 n, |6 F% B \6 g' k# @" z8 `" S5 E
) k+ x( a2 S5 ^
var 5 Z" ?) v* V; h) `
FrmMain: TFrmMain; 0 V" b; S+ Q) L: \5 p
gbCanClose: Boolean;
& w! O( F: f% l4 f. R6 ~implementation
. O: L& Q6 L+ q" M3 Z2 v5 z
1 ^ V9 x( G; s8 z( x- L3 | N1 Q6 h, K+ @{$R *.dfm}
& E* O( U1 A2 A) F" n) j' w
C7 a- f6 }2 W: Vprocedure TFrmMain.FormCreate(Sender: TObject);
. w$ P3 ~& U7 g) l8 c2 j4 c9 nbegin 1 o' \) m& l" W
FormStyle := fsStayOnTop; 2 n" s/ x2 q; M5 Q: Q' `
SetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); 8 e* W3 c, _; N5 d! o4 k4 t ^& |
gbCanClose := False; , Y1 w7 I; y1 x# ^9 ~% Z
Timer1.Interval := 1000;
7 o- ^, M. _) TTimer1.Enabled := True; 2 U' z# g& U# }
end;
0 f: k% a: j& @% `+ z: R; X% A
0 m7 O5 ?4 K. e% r/ Eprocedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
( A7 x" Q; Z! ?( ^! Rbegin 3 c S% Z2 x, z! z; [- I/ b
CanClose := gbCanClose;
! A( c+ Y* R- Hif not CanClose then : _( g; G. z, q5 F9 C" T
begin 7 B& z8 E6 I/ C' \
Hide; : e3 w3 u+ R* T; H: O! I0 N
end;
% F) W! e9 T6 A1 C8 Q1 B, ~end;
0 ?# Y* S9 U m, O4 [
; X, P' \, U& c' M M: Q4 gprocedure TFrmMain.FormDestroy(Sender: TObject); ! u6 x1 [6 K Z H# K) q: R' n
begin - H7 G/ G0 H& G% d
Timer1.Enabled := False;
X) a Q' Q5 U5 a% BDelIconFromTray; ; Q5 J9 e( _: F1 X" V: r
end; . [" D! ?' B& x3 w! X
' O6 v5 d+ x% b- R; K$ {
procedure TFrmMain.AddIconToTray;
; V; U5 g- p: u, I1 v% H( `begin
: V- O+ l- ]0 U4 F4 {, I$ aZeroMemory(@IconData, SizeOf(TNotifyIconData));
5 Q9 C& A) E6 Y. D- R/ \IconData.cbSize := SizeOf(TNotifyIconData); , |6 h0 g" L6 R9 @
IconData.Wnd := Handle;
3 P( n; Y" W3 x1 lIconData.uID := 1; # V+ U: m2 A3 d: Y; l
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP; " t% l4 F4 J4 |0 s4 }8 A6 c# G
IconData.uCallbackMessage := WM_TrayIcon; # v5 @/ n1 b+ Y9 i3 S2 w7 `. O& T
IconData.hIcon := Application.Icon.Handle;
9 p3 Y* G4 M6 j# t9 MIconData.szTip := 'Delphi服务演示程序';
+ M6 T; a* S2 [Shell_NotifyIcon(NIM_ADD, @IconData); 4 ^& y1 z8 B/ s
end; * H3 I( U( Z6 ]! q3 t$ a
- F+ y9 S, S- J4 l2 A* C4 b/ zprocedure TFrmMain.DelIconFromTray;
6 v7 `4 [; m. p7 N! O. y6 N3 ^' ^begin
: u/ \5 H; D( ~% |8 [ X5 yShell_NotifyIcon(NIM_DELETE, @IconData); , n5 h3 h% t- n9 z
end;
; N& E# {8 D" t( Z( Q# @$ v1 w5 _! z' K
procedure TFrmMain.SysButtonMsg(var Msg: TMessage);
) T X- u* _' q3 g9 S: R0 @6 W- Qbegin & i0 t+ y( l. A
if (Msg.wParam = SC_CLOSE) or
2 W, a1 e$ I( V) [(Msg.wParam = SC_MINIMIZE) then Hide
% o, q, n8 X2 B% b& W" Kelse inherited; // 执行默认动作 ) e2 g! c* z7 F) U5 R8 V( G6 f
end; 0 C; w# i$ x G/ \
, G& L m& e! j5 o+ l
procedure TFrmMain.TrayIconMessage(var Msg: TMessage); 7 I7 Z* {- A% G
begin " h5 O2 c/ _7 J
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
( a8 k+ G2 t a$ aend; $ s# ]. ^2 K" w
8 a) H) Y, y$ Z* R5 n% Eprocedure TFrmMain.Timer1Timer(Sender: TObject);
9 q2 T1 P9 q( A! xbegin - @9 q1 f6 o4 {$ p, X# u
AddIconToTray; . @( p# _0 _; m) W# g7 J
end; 6 M# O; ]4 `- t* t7 `: d
& o p+ ~% c" K. iprocedure SendHokKey;stdcall; : Q o4 P3 m0 R% q2 w( k1 c" s
var
, S% F! ~' Z0 e! b% v0 BHDesk_WL: HDESK; . \% p# ^( f" q+ z' L! i$ H( E% }) m
begin
$ U, |" L3 [8 t- a7 w$ h0 ]HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); / T, m2 f# e' L" k* I6 o: v
if (HDesk_WL <> 0) then
1 P! e0 {5 _" q9 Qif (SetThreadDesktop (HDesk_WL) = True) then
3 ^. U l1 y2 v* x) }' }" {1 r- TPostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE)); , r" { B/ v4 t5 ?- Q* V4 Y
end; ) u/ Z4 p7 L. E
9 @1 z$ I+ y$ [procedure TFrmMain.Button1Click(Sender: TObject); 6 {9 D2 b% g: @& q8 T! s3 Q
var
9 Q% c$ e Z/ t1 I: h+ @# r' PdwThreadID : DWORD; 4 F, [3 u2 E* A
begin
$ O& C3 W- G# s5 D& ?* ]CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID); & t) U: N1 H9 t. i
end; : g: k+ F! L2 G! o
5 m: ~7 G6 @' o' rend.
7 o7 p9 \2 j' D7 p, D- }
, ? E: D) @" f! M& |$ M1 m6 d/ ]# O1 `5 ]8 O) N: y% a% B
补充: : z. m7 V$ |7 d0 i: }' h$ [
(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 k9 G# [3 q, B2 }( h/ [9 J* g3 w2 Y6 d v+ M7 B+ z9 @
(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 J; X8 f; L9 ?# L7 ]6 K3 X
- J; u6 j9 v1 m( P' a& H9 }; b
(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: 7 }* `( W. u" T
unit ServiceDesktop;
2 _/ R# m) Q) m9 R: i+ @0 u5 c3 _! V# \- _( f
interface - z% e! v) G) `, e5 W- c" A3 U
2 J+ b! j& z" M6 X0 j/ `! ?) ~( M$ afunction InitServiceDesktop: boolean;
. F* a7 B5 L" b" N9 Kprocedure DoneServiceDeskTop; 2 t7 r) h2 k& y- ?' T5 J# }6 v
4 _. p, ~: c6 f/ simplementation
n$ ]9 g% _9 ?, O
+ w* m4 R* M! m: |, | buses Windows, SysUtils;
" ~- h) A. I8 H1 I& u9 A: U! `8 b! A' n, A5 v2 q8 V
const
8 C8 W& e. e. ]( L. Z6 {8 _2 jDefaultWindowStation = 'WinSta0'; 4 z& w, K' S6 c# u/ {- P' ]8 i: r* x) V
DefaultDesktop = 'Default';
; w% b# H; `6 h' nvar
# a( w5 f0 j+ H0 hhwinstaSave: HWINSTA;
a8 A0 V7 K! khdeskSave: HDESK;
6 ] q* G. a' }& Z. a. d6 xhwinstaUser: HWINSTA; 4 c; K g4 Y1 w2 m) T
hdeskUser: HDESK;
* n& J, U! @- b+ Ifunction InitServiceDesktop: boolean; 3 J q, a) c+ g* @" G" t
var
$ M z e' I& ~7 t- p2 q% xdwThreadId: DWORD;
s9 v+ o) ^( B# W3 T% M& B: hbegin
1 P. x5 U: \4 r/ g& B5 MdwThreadId := GetCurrentThreadID; / S: p, Z1 B3 U6 w
// Ensure connection to service window station and desktop, and ! `# j# ^1 @- j0 J6 e& H+ M
// save their handles. % A+ i3 c: F' ~/ C( R; q
hwinstaSave := GetProcessWindowStation;
; C& K5 ^* g- k1 ]) AhdeskSave := GetThreadDesktop(dwThreadId); # T! b. L9 l. v* X9 I
& [$ L2 r2 [2 T9 S$ [7 e4 u- l. r3 F6 o
hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED); - F9 r, s: P, I2 n. Q: ~
if hwinstaUser = 0 then
% }+ s! j* W, M2 g2 q; }begin - _3 e4 p. s7 E1 Y
OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError)));
# w0 e$ y1 \" CResult := false; ( E2 Y- K4 X9 {: |. n& d( v) c
exit; 5 D- X7 Z0 ]# N6 w1 Q
end; / j& Y8 p4 I% [; ^; ]; w
: I4 Z h( L' l2 C9 n1 Nif not SetProcessWindowStation(hwinstaUser) then 5 }5 Y! r3 V( H2 U0 y
begin
% u5 v w3 ~3 qOutputDebugString('SetProcessWindowStation failed');
* v/ o% X: Y% |/ g. ~Result := false; 1 _7 k: @5 I8 X& [4 B2 I
exit; / n0 {0 }# V3 |( Z% o7 k
end;
% E6 t, E8 t4 v, Q. t( b1 @2 [: j( E( n) V3 W
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); 0 x% e, `/ D2 N. L& V
if hdeskUser = 0 then
6 W/ f1 J! \4 t# i; tbegin
U3 X( Y2 |* z5 b+ EOutputDebugString('OpenDesktop failed'); 0 O9 O- `: U- G8 x
SetProcessWindowStation(hwinstaSave);
$ y7 `4 F. [# x& k, h* gCloseWindowStation(hwinstaUser);
7 e/ U7 ]$ x4 }8 K- Q' \' sResult := false;
+ m) N* A' ~' z6 @+ Mexit;
8 w. ?" r; S4 { r5 O$ d9 Z* [5 Rend; w" g- _$ z0 T( Y/ y" w
Result := SetThreadDesktop(hdeskUser); : g i5 I/ B `+ o9 c2 ?# x& ?5 _2 B
if not Result then
& }% _* Q, b. p& {6 U- E3 ^9 s6 [OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError))); , `, Q! Q' G2 z+ U8 P( E0 ~% D
end; , J3 J* v" K- X+ y# R, y* f
Q: S8 |1 N4 D/ U+ Y3 U5 A
procedure DoneServiceDeskTop;
* B% }: `+ J' K% Obegin 3 s, N: `" {0 M" Z
// Restore window station and desktop.
0 k+ L) s$ h3 a" y( OSetThreadDesktop(hdeskSave); 5 D6 q* {5 t \' W' Z, w
SetProcessWindowStation(hwinstaSave); 0 u. f6 I: q6 K' f, _
if hwinstaUser <> 0 then
- F& }0 f' l3 D' ^/ M1 N" `6 {6 t* QCloseWindowStation(hwinstaUser);
g$ i' p. z/ ~+ z: B4 Mif hdeskUser <> 0 then
; j6 P/ M1 ~+ W# h0 DCloseDesktop(hdeskUser); ( B4 |5 U4 O8 R8 ~$ S/ C2 V% l" R
end; 0 C" G0 q( O" Y4 S& D
& K% A# I, h5 G d' G9 @
initialization * R! z7 ?7 J5 _' o r
InitServiceDesktop; ' I+ B% v+ z/ S4 u- \
finalization 7 g% K1 s6 i }5 [
DoneServiceDesktop;
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更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip
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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;
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uses Windows, WinSvc;
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const , {3 v% U2 A$ S# K# m! s
// 5 E5 h0 t9 t4 G( s" v% |5 ^
// Service config info levels / K6 i: d$ ]6 j6 U/ e
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SERVICE_CONFIG_DESCRIPTION = 1;
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