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(1)不用登陆进系统即可运行. $ w8 {. h! ^6 d9 _
(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 G8 r5 _! F4 M: h b
6 E# k" X6 d! k4 h 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.
3 K3 u: t9 Q3 \ r/ 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: " D8 V; v9 @* t) p! y
]) W) n: D& H3 G1 z4 q
(1)DisplayName:服务的显示名称
' `, f. ~! q+ [6 a G (2)Name:服务名称. , B. `7 M$ r) O0 V+ g6 K" g# v( U: b V
' e$ U( N7 Y* S5 K6 p6 r4 F2 B4 ]5 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.
! w% D6 f# _6 z& `) q4 k
7 l( }& A0 H2 v+ j. j 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. 3 E1 `9 E0 L$ g
' }3 P7 h; o5 w+ Q+ T# I7 q3 b4 [
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. 0 N& ^. F+ r! H% H9 L2 p: X& {1 ?) i
4 Y1 }3 g7 \- ?0 i; x4 ^ 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:
' G% K! m% W- b0 u0 l: x
6 m w' e% p2 u7 K% d' e6 e. N
; {- E5 f" ^( z1 ], V6 }/ Aunit Unit_Main;
, u6 S$ u y1 l" v; L, A; K
7 ~0 d" m; d: z# m% x0 \interface 4 I3 w! o" @5 A4 a1 j( G. C5 a
2 D9 |, v6 i! }2 P
uses / |: r' F( l2 _3 U8 Q/ d
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; - r& s1 C: q- q$ X2 D
/ \ U8 c8 H, I4 `: c6 ^type ( R, }: }4 n& k' }0 p
TDelphiService = class(TService)
3 B8 ^7 I3 R8 X' Z J* c. Kprocedure ServiceContinue(Sender: TService; var Continued: Boolean); 6 W! \% L) q% i
procedure ServiceExecute(Sender: TService); . E& `0 z) H9 c3 a/ Z/ e5 {" F1 p
procedure ServicePause(Sender: TService; var Paused: Boolean); 7 x. M" V% s4 q, Q: S
procedure ServiceShutdown(Sender: TService); : m+ q( } t# w
procedure ServiceStart(Sender: TService; var Started: Boolean);
) _9 \& F& Y. `6 l* W9 v! ?procedure ServiceStop(Sender: TService; var Stopped: Boolean);
! @$ O) W- K* c2 w9 mprivate . X$ d1 U, i$ l$ C% |" R$ o
{ Private declarations } ' z, S; r3 n; A4 e5 b
public * G1 S- j; Q) m8 J8 W
function GetServiceController: TServiceController; override;
: w- D7 ~, ?( \% U, y{ Public declarations }
0 D& l2 }1 I3 _9 Aend;
6 f) w4 D8 V0 K P
~ t; ~5 J. v+ J2 q2 }var
& \" s3 f( X& W, Z: J) Z9 M8 W$ u8 fDelphiService: TDelphiService;
# D" n/ U! m: b5 e0 J3 c, BFrmMain: TFrmMain; " x! q! [# C% L+ K5 N9 R
implementation
" W8 T/ J) n) G: {
1 K6 B$ f6 h( Y+ l& p{$R *.DFM} " o' i( G0 J6 B( Z* O% {* A1 q9 }5 d
/ O4 G: s; Z* B/ q3 _. e) [procedure ServiceController(CtrlCode: DWord); stdcall; 0 `7 ~6 |; k+ k t
begin * D- A$ u$ l/ H5 |" j/ L
DelphiService.Controller(CtrlCode); 5 X; q0 K( w6 L0 f9 U6 a; t
end; 6 H! t- n) n& a# ^; w# m+ I
; E5 u4 j6 Z" @ Z" ~, K
function TDelphiService.GetServiceController: TServiceController;
) ~& X& ]8 L% E* e' d- R8 z3 W2 ebegin
2 F+ `1 K5 F- o8 EResult := ServiceController;
! W, u) D {, H5 H+ _6 dend;
; a( a; m; e& Q* l0 V7 c% W: h( M) Q* o2 c
procedure TDelphiService.ServiceContinue(Sender: TService;
3 i) l9 p, ]( s* H7 u+ I: f7 q; Kvar Continued: Boolean);
' ^; a! |6 w: s2 c2 sbegin 7 W+ D# G" T& `- T2 t7 |8 d
while not Terminated do
7 m$ b4 @ t) V3 ^/ w/ mbegin
; l& F; x5 c# H9 M% c; i" aSleep(10);
n# f: K! C" A# G, l" I- uServiceThread.ProcessRequests(False);
; c5 ~5 v: S/ I2 Mend; , Y2 w# ~, N) ^* s% M
end; 9 w, L6 p' M; R
7 R3 D# V) U# f% v& m4 A
procedure TDelphiService.ServiceExecute(Sender: TService);
, j' s- [/ f* f; gbegin
$ W! p4 R+ I# z/ swhile not Terminated do 8 t' f! \3 s9 G
begin # M1 Z9 Q. P0 `9 z+ }; c4 K+ {0 Y
Sleep(10); 7 b8 J+ ~1 m/ z. s0 T* B1 a
ServiceThread.ProcessRequests(False);
2 ]2 n& [+ r. Jend; ( ?" a+ ]& A7 m! y( G* d1 ]7 F$ {
end; $ o! ^' j, e! Z
% _" D# l- r5 J+ Y! L' U( O3 _1 `" J
procedure TDelphiService.ServicePause(Sender: TService;
5 C* D, |3 ~" [* U8 N0 Bvar Paused: Boolean);
9 Z; L! H u0 B+ \6 L% r; d. C; abegin ' T7 n) U, i7 F2 N$ y' Q/ h
Paused := True;
6 \- l, L+ j5 i( X1 J: cend; 3 H! h* U& G i# h4 J. N9 S) J
* f5 K/ [9 R0 f* \
procedure TDelphiService.ServiceShutdown(Sender: TService); 1 N, ?+ d) C) |6 {2 O X8 |( w
begin : a. M( @% |( e% s5 z
gbCanClose := true; # r2 v! ?" D0 i
FrmMain.Free; + U9 s/ H O: Y
Status := csStopped;
/ `4 u' U- u% q& d! i3 ZReportStatus(); . i3 g, c/ b0 D/ F
end;
" I+ V$ v5 v4 K# E% |
" w( g* C/ f- a6 W0 }0 Cprocedure TDelphiService.ServiceStart(Sender: TService; 6 ^" X* S; o; L+ s, B
var Started: Boolean);
- f- B" q R- {+ cbegin
- ]# z9 A: `. e/ K3 f- `( Z. PStarted := True;
k, f% t2 z+ |$ |3 e9 USvcmgr.Application.CreateForm(TFrmMain, FrmMain);
- b+ X* c# q2 N7 _, T2 J& _gbCanClose := False;
3 c- c$ H6 \% g1 q) x1 fFrmMain.Hide;
& h" t/ Q$ N% Fend;
0 V) M: U: f, Z: s* E5 }# Q1 B! C' n
% G& V% Z1 x, d3 Y4 Kprocedure TDelphiService.ServiceStop(Sender: TService; % h f0 F; h2 Y! b7 n2 m
var Stopped: Boolean); 4 |- q% O8 a. \; s1 F
begin # \+ v" }$ p7 G; V, p/ ?
Stopped := True; 1 x- a- s& q n
gbCanClose := True; , w5 o; j& }6 r4 W
FrmMain.Free;
; @8 L# |9 }# \' r" Hend;
% T: M. {( ?$ k$ a h4 h6 M7 N5 J5 n. J O7 G
end.
# j5 ~ h2 E* B4 N' u4 ~+ y
6 R6 |5 p6 u# {: o8 V3 B9 j( C' y5 y3 Y8 o* A3 X
主窗口单元如下: : L4 L; ?5 j* e
( k, \# l# b- Q0 o/ g' wunit Unit_FrmMain;
6 ?% W7 `- a1 v `4 d( v0 B
, n/ h D0 ^- }$ i1 Xinterface $ ?$ C3 z9 w. `" f k
6 n) D8 s: ?0 Vuses
: n4 Y& Z" e- a6 N6 f: FWindows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, 5 u4 R, C& _' R
Dialogs, ExtCtrls, StdCtrls;
. q. c ]5 C/ w+ Z# }1 _- e' B; i% C3 A( _4 [6 m' }
const , E; x* m5 J2 i0 [& S' g5 z* z
WM_TrayIcon = WM_USER + 1234; ! i* a9 r. ?0 |+ {
type
8 i9 s4 V. Q4 Z r9 p) s: ?4 `4 u, LTFrmMain = class(TForm) - w6 ?* n9 G& h, M1 L, K5 q+ l
Timer1: TTimer;
3 O" o6 a, O- a. ?" |; UButton1: TButton; + J: |" Q9 D' Y% x* j4 P$ g( y
procedure FormCreate(Sender: TObject);
8 R/ R) s P- X4 Z( O* Oprocedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
L M% w% Q/ L) O7 u. kprocedure FormDestroy(Sender: TObject);
+ G" y/ @9 O3 n: u6 V/ \+ mprocedure Timer1Timer(Sender: TObject); 9 |+ z* n8 r( k+ e* }7 K k
procedure Button1Click(Sender: TObject);
+ q; w; W R* b% [private
N0 f; P" @4 G( q! `{ Private declarations } 6 j- [7 j( V3 `" y. b
IconData: TNotifyIconData; r- ?- `8 ~# _
procedure AddIconToTray;
3 a9 J p |& Kprocedure DelIconFromTray; + E* o* B! f2 [7 y
procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
# S3 T6 m3 P8 F" V3 hprocedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; - T7 _" W$ {5 }
public
% p5 B) }. n) n' K{ Public declarations } * ~# B* k! {# G3 s
end;
9 [4 o9 {/ c" R' g* U. m6 n! c5 l) y% y8 h* X k
var # d. s* }3 M! O& j) k: C
FrmMain: TFrmMain; " x7 L: q6 D9 z$ i) h
gbCanClose: Boolean;
( ?0 C/ n, F2 G G* Zimplementation 3 s$ L+ `+ `3 `2 r; j
R e' \9 y" k ]
{$R *.dfm}
+ e, p+ ~5 O# _+ P+ ?% n; t* w% d* |9 Z
procedure TFrmMain.FormCreate(Sender: TObject);
: q, W0 ~8 k3 z# D( V/ Vbegin , G& [2 E0 p. _' n ^$ ~
FormStyle := fsStayOnTop;
/ j6 v: u. Y8 F+ bSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
' Q$ j9 X0 J: c- k7 @gbCanClose := False; 9 k$ h+ R) H+ s: e/ Z
Timer1.Interval := 1000;
. B7 @" S9 E# P- r1 q" NTimer1.Enabled := True;
) y: ^6 X5 @5 Bend;
; `/ w. l9 t2 C! t( b, A6 k; G3 F: K R1 A8 s+ A
procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean); - N3 i1 G0 j# O+ |% K
begin
/ M! e' t8 {' OCanClose := gbCanClose;
; v: [% u9 K, R* Gif not CanClose then * F& ]/ ~, l( ?! \/ Q1 h6 ]
begin
7 ~ ^; I/ ?$ T8 S/ x. V, H# v: }6 AHide; * s! K4 M: H4 H/ e+ b
end; # b" N. l) o/ R+ g6 s; O
end;
$ T- m& Z& |( X' b9 f
: T& D7 Q9 n2 R) Hprocedure TFrmMain.FormDestroy(Sender: TObject);
7 }8 s! C, [, z3 s+ N. Ybegin 1 O& j; x9 d) `9 `5 d! c# o' m8 K0 w
Timer1.Enabled := False; ; P4 g7 }* B3 @9 F' ]9 T
DelIconFromTray;
N6 ]& F1 G5 i$ U; Y+ d9 @5 v! Bend;
+ e$ z3 \$ U" y. J
' x H* m( |7 U8 G7 Y# B( Yprocedure TFrmMain.AddIconToTray; : ?$ l- F3 d0 S3 p/ J
begin . d* [4 h6 w) v# W
ZeroMemory(@IconData, SizeOf(TNotifyIconData)); 5 r4 N5 d) r+ F1 K {, e# i/ I% t
IconData.cbSize := SizeOf(TNotifyIconData); 4 N3 E0 x% w3 N. o
IconData.Wnd := Handle;
7 l- K# W7 O4 k* z. s- PIconData.uID := 1; . A4 f; x- I/ K# D! F6 l
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
1 @* P! y& G2 s2 O6 o {# wIconData.uCallbackMessage := WM_TrayIcon;
* i3 L# b5 b9 [& J% |+ `: kIconData.hIcon := Application.Icon.Handle;
/ r- _5 r O3 YIconData.szTip := 'Delphi服务演示程序';
* i7 e3 }9 J4 M" a7 WShell_NotifyIcon(NIM_ADD, @IconData);
: a5 J" e4 d: n" Wend;
1 N9 u% f$ v0 j0 I# U6 M
- S0 Z$ H$ v) w0 Z* |6 O- f2 p5 K4 cprocedure TFrmMain.DelIconFromTray; / _8 N6 \; H& L3 |8 r& _3 o+ b
begin
1 {/ t0 w6 c* E( QShell_NotifyIcon(NIM_DELETE, @IconData); 7 p( y# I( b* K+ k6 f9 F* m6 \0 f
end; - l' V& A) {$ e1 `4 V0 d+ W
0 ]" z4 j5 P4 J3 w: a
procedure TFrmMain.SysButtonMsg(var Msg: TMessage);
& ?# G2 v' q- I! jbegin & g7 [ c$ J2 K1 |
if (Msg.wParam = SC_CLOSE) or 2 z" i! \# _5 H. i1 D
(Msg.wParam = SC_MINIMIZE) then Hide 1 F+ Q" K$ q' j: `! }
else inherited; // 执行默认动作
2 C/ U' i2 A* E1 W) M, A1 R) f$ {end; / ?+ S3 ]$ Q$ o- i
( C& @4 G9 z, V0 K0 \$ N. Y
procedure TFrmMain.TrayIconMessage(var Msg: TMessage); 3 m! Y2 \) s& h2 I
begin
, E" y" D+ t& X- \% R3 k% V9 @" Z1 cif (Msg.LParam = WM_LBUTTONDBLCLK) then Show(); $ Q% u1 [" p$ \/ Y4 _
end;
7 V, V2 t% d& C7 N( N4 Z5 B7 S# }& T4 b' Q6 T
procedure TFrmMain.Timer1Timer(Sender: TObject);
4 `& U& d: }/ s0 Y7 B( [ \begin
$ e2 @3 X( y0 M+ G8 p7 _AddIconToTray; # p' x1 Z2 h0 G+ @: P# s* \
end;
6 n& v* }8 |& _+ ~+ \# [
- P1 @1 J. I+ \# |8 `procedure SendHokKey;stdcall; - z! O9 Z) d4 e% t
var
; l. X9 _2 h; N; C' a" PHDesk_WL: HDESK;
! c+ P2 o& @6 o# u Sbegin 2 W) x( u9 s+ O1 s1 w' g) G
HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); 8 X" S2 ^7 ?. T1 J7 o# p m3 X; ]
if (HDesk_WL <> 0) then & Q6 k( f# x9 K* X7 w
if (SetThreadDesktop (HDesk_WL) = True) then
u0 b5 s0 E' l1 ~; EPostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
0 u" L1 D7 \. h4 b8 {end;
6 r- u4 w5 n* i
$ Y) s' l) L1 Z% {" Zprocedure TFrmMain.Button1Click(Sender: TObject);
7 A* s4 }) ]8 u0 S4 ~ Qvar
' ~1 p& q( N. e5 sdwThreadID : DWORD; % \9 Q: w! ~7 J6 C) c5 ^
begin ' z2 e4 h0 W1 v2 @! {1 [9 h9 ?0 s
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
: k6 Q8 b2 v9 @! i% hend;
5 B8 q/ f) n% o) H$ Z" }5 c6 h9 `% x6 y! ^ u
end. ; S4 l2 ]# X6 G! j1 p
l6 S$ | z1 p9 n6 v4 E& X4 }0 |0 W0 ?- _$ t* E, i
补充:
5 i; C" j+ g$ c! O8 A(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.
% E: d' i& N/ ~, z8 {, V2 t9 r6 ?* }: h/ T D; @
(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 x. d5 K( H% A; G: ]. |% j; r+ b. P/ ^/ d3 x- P4 t A$ K9 P
(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:
4 I5 n7 b( H5 |; @2 Q% gunit ServiceDesktop; ( U4 G* g& Z6 H2 S' E
: ^ ]: l- x1 Q3 d* z, @interface
# i1 j8 T# x/ n! a0 M0 U( V
0 h6 |8 { Z5 Bfunction InitServiceDesktop: boolean;
2 W0 a/ c% d7 _$ _0 p. h# Fprocedure DoneServiceDeskTop; ( l1 b$ o+ I/ {' Z* \
0 Z& a/ \6 Z( V$ Bimplementation ) J w" F5 ]# S5 D! }, z
1 T+ n& H% M% K5 X1 ~
uses Windows, SysUtils; / [( ^1 q! ] M3 h
, U3 V, L) Q7 e
const
3 W5 l% m5 L4 e: [DefaultWindowStation = 'WinSta0';
: z+ E, ^' y& J# ~0 E0 jDefaultDesktop = 'Default'; * c9 E8 h S0 `; l1 Y" W" k
var 8 m+ f1 P2 ^7 Q. i1 @
hwinstaSave: HWINSTA; $ a ^5 I3 q: e4 }9 u# z
hdeskSave: HDESK; ) m) ?5 R7 [) B" |& R5 Z
hwinstaUser: HWINSTA; , f' \% L6 x9 N9 |; @
hdeskUser: HDESK; . z3 L% A9 u# r! c# t
function InitServiceDesktop: boolean; 0 `; _5 t) V: v. W3 [9 g% m
var 1 {' a6 g d3 F; m& Z! Y7 y3 Q: H
dwThreadId: DWORD;
- Y4 Y5 E# p( ybegin
# O- Z, k/ J% k9 O: _dwThreadId := GetCurrentThreadID; 4 F- n* X& {5 u& T
// Ensure connection to service window station and desktop, and
# L! a- J$ ~5 a& t( Z, b7 g, k// save their handles.
3 i5 E( k6 X, `; \hwinstaSave := GetProcessWindowStation;
: e, ^) U% b6 P4 v$ fhdeskSave := GetThreadDesktop(dwThreadId); # M* Q1 E _ a* C( w% B
* K, {3 m% f/ n, O* r
) r4 H& F- i( b- H" lhwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
0 @ M( a) t4 oif hwinstaUser = 0 then
! G# K& G5 y1 S+ Cbegin
! d0 `# m; j; ?OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); 8 g+ M) [% f7 K; \, e
Result := false; % a& ^% c3 S9 X- N3 _% i
exit; 1 R* H$ b1 O' b* C
end; ; N3 W+ ?/ O# z; |1 `
8 N% E- c* J0 H' Q- hif not SetProcessWindowStation(hwinstaUser) then
% f0 G. d; e& f% t, j+ S3 ?7 u- l, G8 Ubegin `0 B- S' @( n
OutputDebugString('SetProcessWindowStation failed');
6 g0 p; O- O5 jResult := false;
f9 L- A {' @1 N! q' I( p; x4 aexit; 7 G# Y6 Q. F! f) z' G: o- S2 z
end; & z9 \" V9 ~, P
! _* X% l# {6 ?
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); ( S" a8 F, q4 \& D
if hdeskUser = 0 then
, }8 A' r2 L5 B6 w" L3 Cbegin * P6 W' X! q) `; {
OutputDebugString('OpenDesktop failed');
0 W7 h# V" l+ aSetProcessWindowStation(hwinstaSave); " Z r7 ]# d% B* F, G- @
CloseWindowStation(hwinstaUser); # Z7 X/ I- E4 {! T$ J4 t
Result := false; / _+ a/ k4 ^2 v" _
exit;
3 {4 d0 N0 ^$ D6 O7 Q+ v, F% iend;
1 g: ^2 d/ f% s, X) w# }* x+ W% ~Result := SetThreadDesktop(hdeskUser);
+ `( X: @! m7 l# Z) }if not Result then ! K' c% y; i% p' g$ X7 c2 T$ z
OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
( U* r7 ?# @, \: n% A$ \end;
0 T) O1 |& ]; e$ O4 W& B! k
/ E/ F9 T/ _; S. e. i/ xprocedure DoneServiceDeskTop;
" D: T2 r, V3 d% ~# l2 X6 ?6 O1 lbegin
6 ?2 d: z: T/ K! e- \9 j/ z// Restore window station and desktop. - y3 S3 j" B. j. W
SetThreadDesktop(hdeskSave);
( ?1 m( V" I& k9 V3 U$ s6 lSetProcessWindowStation(hwinstaSave); 5 D) ~( l, s/ K2 R7 W: d
if hwinstaUser <> 0 then
$ m5 B( E' i( r2 ^+ p- g3 VCloseWindowStation(hwinstaUser); , S' z M$ }: C
if hdeskUser <> 0 then
. H* w' g6 t; }% x: s: ZCloseDesktop(hdeskUser);
+ D) Y7 Z4 u( U$ k& Cend; - h" ]" o& a0 [6 k8 x& Q% `2 v
; M: R" K% c0 L5 m: J
initialization , `- }- I! c( f( @( ] z7 {
InitServiceDesktop; 3 t1 n n1 `: g/ \9 h
finalization
( C' o8 H1 }4 m; ?% |DoneServiceDesktop;
* C1 H$ n. m$ Z9 Z- Oend.
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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: 1 o) m5 @$ v, y6 P
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unit WinSvcEx;
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# t* f. C# T0 Auses Windows, WinSvc; 8 @5 o# V, E: A( V3 M2 k
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// Service config info levels
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) {2 D# J0 v3 A2 P; Z# xSERVICE_CONFIG_DESCRIPTION = 1; ) j* \6 h0 E$ y! e s6 S0 X; ^1 ^
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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