- 在线时间
- 0 小时
- 最后登录
- 2007-9-23
- 注册时间
- 2004-9-10
- 听众数
- 3
- 收听数
- 0
- 能力
- 0 分
- 体力
- 9975 点
- 威望
- 7 点
- 阅读权限
- 150
- 积分
- 4048
- 相册
- 0
- 日志
- 0
- 记录
- 0
- 帖子
- 1893
- 主题
- 823
- 精华
- 2
- 分享
- 0
- 好友
- 0

我的地盘我做主
该用户从未签到
 |
(1)不用登陆进系统即可运行.
6 S' E' d0 L) m3 I! O4 A (2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的.
6 l L5 R5 T* ] s3 N) P$ Y; W5 ? Y
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. ' i1 I3 e7 q9 q: t
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: & x( g6 J# p, z" h+ P1 K$ O
' o3 B: a. u1 |: ^2 |2 L- p
(1)DisplayName:服务的显示名称 / b( c/ p- A1 o F
(2)Name:服务名称.
) s& x3 R% W- D, o/ F+ Q3 t; G
5 E8 M G5 G, ~! H' 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.
& T1 q* M) Y+ V3 }2 y9 w9 U% f) @+ j- ?6 L% 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.
' x/ i' A; Z+ H+ d( Q
: {1 N( z8 f1 J7 Z& R1 ? 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. 4 O" `4 b* y+ W
6 Q. B8 ` V, ?* x 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: * d/ C* T y5 V- `
! a. w* u5 n3 p, D; W: d2 x& l+ \5 p8 d' G1 R( W/ W9 k" J/ C
unit Unit_Main; 6 d6 l- n/ l% M' M9 R
- R% s' b- d" Q5 T( _( C# l
interface # K; ?2 d, Y3 T' o! a) N, H: a
: Y7 S) b: H: h0 h) A1 u4 H9 Z# M
uses * L5 _; G# G$ m) }; P2 J! q
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
, F" m/ P: {! g: ~9 x7 L% `$ [8 m# O B3 P2 f
type 5 Y0 r* F( U; S( _2 E
TDelphiService = class(TService)
2 d* o# `% C8 z# a) Kprocedure ServiceContinue(Sender: TService; var Continued: Boolean);
# m3 k2 P( o* Y8 _procedure ServiceExecute(Sender: TService);
0 e/ F- Z1 a3 m4 y4 tprocedure ServicePause(Sender: TService; var Paused: Boolean);
# u* o1 D; J& @' |procedure ServiceShutdown(Sender: TService);
5 v9 k( r& z) o9 `procedure ServiceStart(Sender: TService; var Started: Boolean); ) o4 J+ @0 Z6 l8 G
procedure ServiceStop(Sender: TService; var Stopped: Boolean); 8 B, q( {' e `2 Y) B5 I! ~
private 9 p: R9 ?* o* z/ r4 C5 S
{ Private declarations } - a+ n; p/ I. q% h; M
public
& ^# R6 A4 E. a) g9 Ufunction GetServiceController: TServiceController; override; / U2 q( U3 w; {* D
{ Public declarations }
; u4 A" I' d0 w, L/ D2 V& C nend; & d- y+ H; S* Y I
; G1 }* f; B3 J5 B% D9 s3 n( K' M5 Mvar 9 @: q! s# f, ? u9 @ T
DelphiService: TDelphiService;
. X0 ^# J1 V- G$ n. X6 HFrmMain: TFrmMain;
, A) N5 `% x( W2 y$ z& wimplementation
6 ?! B% P- R8 ?" X" c+ n+ t5 z/ I, W& i. z7 H, c9 }5 i% q4 g
{$R *.DFM} 7 a( |, U* l+ ]/ V
: m. G/ |. l5 M7 D4 h: \procedure ServiceController(CtrlCode: DWord); stdcall;
& r% C2 _" j5 B/ a% W* abegin
- @0 z# w. P3 l3 S. UDelphiService.Controller(CtrlCode);
7 o9 O2 ?. @' Cend;
! G. k; x! _3 \2 m+ ^) n, T6 l, q* a5 S, \
function TDelphiService.GetServiceController: TServiceController; 6 D6 s T. }1 D, n
begin ( k# t; g7 O; |3 g4 `" O* U+ k
Result := ServiceController; 1 C8 ]9 w+ H8 m: L
end;
$ L) x% D4 s. D3 c+ d! f, z& H6 i9 Y' W
procedure TDelphiService.ServiceContinue(Sender: TService; ; k# V9 k7 l' S# X: W$ ` J6 I. Q
var Continued: Boolean);
+ H6 N! p% |! N. ~6 u- Fbegin
8 z Y7 p- b& W* J# Gwhile not Terminated do
3 M( h, N& N$ w: l1 W1 u% O7 G' Ibegin @5 ? |# B# p( K& q
Sleep(10); 8 @ K9 `' g" n6 [ ?& N. V
ServiceThread.ProcessRequests(False);
3 h$ b: P+ r3 ~4 ?8 Q3 Q0 }, lend; 6 `5 W- j5 y" ~& t! z6 D
end; , J, {) T, v e# f
8 m+ U7 j/ q+ W4 A! K/ _# L& uprocedure TDelphiService.ServiceExecute(Sender: TService); $ A8 v/ _0 W6 Z4 \# \. Q
begin 8 `2 t' ]) K8 ? c4 Y+ N( q- K+ G
while not Terminated do ' ]3 K/ j$ H& { w. R2 ~( N
begin + S% D5 x+ p/ @/ i
Sleep(10);
; ^2 S% ^/ v3 u& A5 W1 KServiceThread.ProcessRequests(False); ' H) J$ C& I- n- u
end; 1 F) X& d% z% E0 a
end; 1 l1 A0 v: ~: C9 L& n, h
7 b" a3 @% n( j+ k& o7 [7 Rprocedure TDelphiService.ServicePause(Sender: TService; - E x% h h1 o" h: ~4 \0 b
var Paused: Boolean);
' c0 C+ c: ^4 c7 j. Y8 dbegin
; k; x0 ?9 V+ O& T1 T8 h+ P4 F6 CPaused := True; 4 K( K. ^) t6 A
end; 7 ]/ \, h) k7 |# ^6 h) x6 f+ M
5 b8 {1 }% U# E0 U; N Uprocedure TDelphiService.ServiceShutdown(Sender: TService); # G4 E8 ~# b" i# k) E% @" E/ I
begin 7 f' N" ^0 H9 m, ~
gbCanClose := true; 6 J6 u, m* t3 [* l
FrmMain.Free; 0 g$ n- J1 `+ w* r& N) `- Z) u) k
Status := csStopped; 7 z( j+ ?, j; t& y; ]5 L6 \
ReportStatus(); w0 s2 J5 o: g: `( J; ^% j S9 ~
end;
6 |* b$ [( g5 j9 W% W2 z. Z0 Z4 M$ z8 x0 q" r: T3 l& ~
procedure TDelphiService.ServiceStart(Sender: TService;
; k' n+ H8 c. uvar Started: Boolean);
+ `# }6 r% Q5 }6 Lbegin ; }& e& A" l( R8 K I8 J
Started := True;
3 r* G6 X1 u0 \! |' NSvcmgr.Application.CreateForm(TFrmMain, FrmMain); . H7 @) s& _+ }8 \4 v2 `$ X4 o
gbCanClose := False;
6 H& m) e0 o$ T% ^* GFrmMain.Hide;
/ T- ?. h1 k( ?, |) a1 J" d5 F$ rend;
* v" P }! i- Q
- {5 [- M0 R# Rprocedure TDelphiService.ServiceStop(Sender: TService;
9 y- u' g! a6 Z! h) A) C5 D( T) Bvar Stopped: Boolean); ) N. r: [* k$ t& |, a1 X, P
begin % f0 T6 a& y" c9 S L
Stopped := True;
" T: b, U. W T3 w1 z: |gbCanClose := True; 5 K$ `: Q# g+ m, U. T; o5 C
FrmMain.Free; * ?$ N2 s$ E! c
end;
) t# [* p) _" y g- L) \; i( [! Y7 U
( `) m; Y j+ f* c) Pend.
+ w$ t) x% j0 m4 a1 e3 m& h; D( n- w" {9 R3 o' a2 t
& s, {$ E' ]' s( q$ S' a7 B3 _' Z
主窗口单元如下:
/ `" V9 O) w7 S6 G& x" B; H4 y$ x3 j0 x* W4 K4 a9 N
unit Unit_FrmMain;
) B( k3 V2 T; q2 y& S% q$ w
% q- p0 z) D2 C2 xinterface & ]7 r8 y! F' r/ {3 f; `% X
+ j; m7 c3 m' J* x6 C
uses
" S. D& I% O3 T" b& BWindows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms,
5 u2 _8 i) D# M+ U7 L2 v! p: {2 xDialogs, ExtCtrls, StdCtrls; + V# f; o: X, T/ h
: ^: [$ U9 D/ G2 x# @; e0 kconst & C% M: V* L# N) b& v: b
WM_TrayIcon = WM_USER + 1234; , M- h$ G7 p" U d
type 1 q q( u+ v7 r/ J! [- e6 ^
TFrmMain = class(TForm)
0 X& S9 A, b1 u( u. J. ~Timer1: TTimer; : t3 _) b" n! C$ W( d
Button1: TButton; % O4 z& K4 R7 Q2 H$ ~4 O% T- `4 Q
procedure FormCreate(Sender: TObject);
R3 t6 P3 ]2 T: S. }8 G: @procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
1 Z8 B3 i; `6 u0 @/ K$ lprocedure FormDestroy(Sender: TObject);
9 @, g1 @' J- Z3 _) ?+ x2 Kprocedure Timer1Timer(Sender: TObject);
" e: D3 P$ A! r# k- ?1 aprocedure Button1Click(Sender: TObject); " y8 I2 Y9 [; k+ T+ q
private ( \# p! R6 I* b- Q' |
{ Private declarations }
. X# D; s E4 \, RIconData: TNotifyIconData; 6 j i9 ]7 a5 i9 J
procedure AddIconToTray;
' E$ h+ i7 m* e; _+ S6 d) m6 lprocedure DelIconFromTray; ! ^) s* K0 S( e
procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
& W( r2 m' r* _, G* T% zprocedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; # q+ H9 V" t0 ~: j/ ^
public
. z6 ~- n6 x; t{ Public declarations }
, b4 Z8 c* m0 o6 q! Z; u; ?1 [end; ( H0 }+ J7 Z* m K/ ~0 R2 N
4 F( P2 Q# {) Z' Gvar
. {. h# M- i2 Y: [- AFrmMain: TFrmMain;
|* x% O7 {, {: a/ C$ VgbCanClose: Boolean; 9 T, \5 A: m. i7 i) t; s
implementation Z" U8 }' a: d( R, w3 K
$ G2 `# F# m- `2 P q
{$R *.dfm}
0 P4 Q. n! q- e0 N
8 G/ _9 F- T% |procedure TFrmMain.FormCreate(Sender: TObject);
( q! G4 D. G2 X6 F& y% abegin
% ?% ~! ?' B( C+ vFormStyle := fsStayOnTop;
7 } R0 e8 _( C9 m0 g- x. cSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
6 p8 M+ M. `4 }3 CgbCanClose := False;
" S. i/ }% s/ V% l9 BTimer1.Interval := 1000;
4 c+ w2 \. F' X' W$ Z! k+ @Timer1.Enabled := True;
# ]; e: |5 j) `/ fend; ( m) N7 X, p: j6 W4 s- J! K+ S7 |0 K
. H/ K, e- k6 t Hprocedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean); P+ I/ s5 `8 U. y# g1 }' Q
begin ( o: M+ m! M/ ~
CanClose := gbCanClose;
. a8 ~3 L/ O$ u/ z9 @ q: c' J5 Kif not CanClose then
& v \/ M. I. p4 rbegin ) Q+ \5 V0 u$ O$ E8 o/ X, o* `
Hide; + Y1 W: T' s. D) p: X
end;
9 a6 \' \1 W/ g( d) Oend;
, h# }. P4 Y1 C$ `4 b
, ~/ c/ ?+ K) a9 L( |7 \5 t" I2 ?procedure TFrmMain.FormDestroy(Sender: TObject); 7 U9 f* V7 i/ ]+ A3 _% Z
begin * j" y; _# _0 f4 N+ Y* C' D+ U$ ?& ~
Timer1.Enabled := False;
9 |5 B6 j6 w9 |' p! ~9 a. C$ \6 hDelIconFromTray;
* z+ L8 C8 @1 I* Jend; 1 q, z8 G7 m/ J W' E
" Q3 [8 V+ M8 @, d) _5 L
procedure TFrmMain.AddIconToTray; 8 B3 {+ W0 _7 g. b# A+ v
begin
* u8 P) \7 g/ b/ _5 b eZeroMemory(@IconData, SizeOf(TNotifyIconData)); E. ?& X8 \8 C+ l6 | h
IconData.cbSize := SizeOf(TNotifyIconData);
4 i$ ^/ Q' c! ^% FIconData.Wnd := Handle;
: d* \+ @6 X0 ~, J3 ?IconData.uID := 1; * s, @( l, {/ w' W, z9 j
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
% f8 t# s0 E' T2 b& p8 gIconData.uCallbackMessage := WM_TrayIcon;
- M; U8 Y+ |" G" \3 gIconData.hIcon := Application.Icon.Handle;
) N5 T9 D D. R* _: lIconData.szTip := 'Delphi服务演示程序'; " T+ G; Y F9 Z4 q1 _0 z$ w! z
Shell_NotifyIcon(NIM_ADD, @IconData); ; |: I& G7 w+ L4 a& k8 W: |
end; " T. x2 ]8 @( `, r9 V+ R8 c# h4 G
( N1 Q/ \, K3 ~7 i* R! kprocedure TFrmMain.DelIconFromTray;
' l2 J3 J8 m& ubegin
* S( B! w/ ]% b2 E8 W& lShell_NotifyIcon(NIM_DELETE, @IconData);
& e, \6 x$ x; M& q. Zend;
* a. B8 ~2 l1 ~/ z$ I; K; f7 l. S7 _" f
procedure TFrmMain.SysButtonMsg(var Msg: TMessage); 7 G5 [$ _5 o/ N# ^, K3 U7 s
begin
5 D* }3 V8 F' C: b6 @7 ?- r" x$ |if (Msg.wParam = SC_CLOSE) or : p3 ?. L4 _" Z I6 {
(Msg.wParam = SC_MINIMIZE) then Hide
# f9 Z9 s5 m# Zelse inherited; // 执行默认动作 7 b- Y9 C& C; X1 J4 L3 G7 ~
end; $ W# g9 m( \! v. `# c
# N. x; N+ B5 O, ~8 [/ B
procedure TFrmMain.TrayIconMessage(var Msg: TMessage);
& f# I o/ E7 n( @/ P6 Sbegin
3 K9 Z; M9 Y; n& Z& \" O# Jif (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
- u* \8 t8 T& q; _/ D% D) ^+ kend;
1 t# e' K4 w7 x9 `+ v6 q. H/ d# G( z% s% v) H7 [
procedure TFrmMain.Timer1Timer(Sender: TObject); , D) `( e9 R3 V: @
begin " N6 i% S$ E$ w1 ?" r$ ]
AddIconToTray;
, D7 E1 ]1 ?8 J. [) h% Hend; 5 d% C1 b! H {7 y8 H. C; S+ g* T
# E* G1 v& y6 V% w aprocedure SendHokKey;stdcall; - h- e. n! S/ [' t4 ]
var ! Z+ w5 ]6 [2 @
HDesk_WL: HDESK; & p8 y! l& _' ^9 _, D/ E; a
begin ( _9 N+ n+ P0 c9 F" | o" @
HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK);
6 G% E5 p8 W8 C6 }* Kif (HDesk_WL <> 0) then 2 d8 M2 T2 |6 d! R: \' o
if (SetThreadDesktop (HDesk_WL) = True) then 0 _) g7 s w5 v
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE)); ' p0 {% F) w# P- U8 P, I; k* J
end; , H" d/ Z5 r4 I: \/ }0 C$ L4 [% X. [
a$ e" _7 o5 E! D3 lprocedure TFrmMain.Button1Click(Sender: TObject); o0 Z) z5 [# m: \
var
3 A9 u$ g2 q2 Z; |( |9 c5 {9 CdwThreadID : DWORD; $ T1 a0 w+ z0 A" p5 S
begin
\# m" K3 r0 q1 BCreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
8 r/ C/ ~7 z( b0 S9 M' }end;
7 v- `. d, e1 y! y, d5 |2 O i, S7 N2 g
end.
5 p' ~, U" ~4 y$ {9 ?5 |; ^& ^0 N2 O# |9 \7 x. V0 j
& m9 b5 [6 A! [1 W. p) ~补充:
8 o, C/ }7 ~4 W9 e) ], e% g(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. " x- h. p5 W$ @' G: `9 Y3 X
" _3 B# L9 Z1 ?0 b- L1 i
(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.
5 X+ w2 S3 j. t# ]* h7 k5 D5 O! g5 p$ X& p% b. n; f6 u
(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:
: D/ t8 w: _, W& p3 ], gunit ServiceDesktop; + v, J4 `5 p; K0 W# l5 s
( u+ H) H$ `1 Z( k& w& yinterface # V4 w1 m7 b, T P7 c% g' D
: `/ w3 p# d8 t. P& ]
function InitServiceDesktop: boolean; & D* g/ w* R% Z; h( [
procedure DoneServiceDeskTop; ( t5 D' F! x5 D/ w" p
* F; O+ L( A1 J0 ]7 t! o% x1 Bimplementation
' b& L! o5 x# f/ ~; u) j
0 c) E3 V6 e: Nuses Windows, SysUtils; ; k, i s: P- @
# k, a2 j0 {+ R$ v8 I
const 4 W% q* o3 ?* r" B% Q
DefaultWindowStation = 'WinSta0';
1 s% ~0 z; T/ B; p" T* kDefaultDesktop = 'Default';
- S& P+ M6 J+ x2 e0 ?1 E& }var G( ~6 e% V2 d( n- t: F* X* X5 ~
hwinstaSave: HWINSTA; + _' r* z2 s4 ~" G3 X4 s, d" L
hdeskSave: HDESK; & R7 Q$ r/ u; \2 Z% O
hwinstaUser: HWINSTA;
* ~& `! O# y. {7 E1 s, BhdeskUser: HDESK;
6 @ ] a, d( |4 W: ^function InitServiceDesktop: boolean; 3 E9 {, @; [6 k
var . H3 {* R; M, R' u
dwThreadId: DWORD;
. U( _2 x* q5 x4 a2 Qbegin * G2 Q: V5 c& |! K; H
dwThreadId := GetCurrentThreadID;
, s, ~4 g3 w" b7 A// Ensure connection to service window station and desktop, and ) R5 j9 }' C' s- I$ ?
// save their handles. . C+ H5 k9 J0 ~
hwinstaSave := GetProcessWindowStation;
# m' z( }. C( l. z6 ghdeskSave := GetThreadDesktop(dwThreadId); 0 F) t( E/ _9 `( K1 O4 K6 H
: \$ \5 _6 c3 Z! {& d
0 a2 T( h/ z# ^% ]' lhwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
, L2 k; v# x1 a: T6 t% @if hwinstaUser = 0 then
3 @! w& a6 `) d1 I# L) Hbegin
. l. j; t9 h; R( gOutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError)));
- z D. F p4 O' B9 E! w/ p+ iResult := false;
5 S% I2 ], A, f' R2 q8 f, C2 a4 mexit; - @7 X( B; X2 p" t/ Z
end;
7 z; p, D6 f; Q+ N
* g7 _: P8 G; h+ Uif not SetProcessWindowStation(hwinstaUser) then I4 K" z% U) r& N5 O
begin 0 q( U) d, {- u7 Y( ~6 Z8 K
OutputDebugString('SetProcessWindowStation failed'); ; U& }/ V8 J5 A- T8 x7 w
Result := false; ! M$ l' X; l& H. C4 ]+ m9 @. n
exit;
! Y+ V8 X0 j. B& v8 K- kend; ; l9 s3 ]7 N7 G' g& x3 c+ I( O
" t# r. W% I+ l7 j2 [hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); 3 |0 l' N/ @& u* i1 E1 h; I
if hdeskUser = 0 then
. E0 k" ~) p! Vbegin * G T+ d$ l0 B0 H0 n& x7 C
OutputDebugString('OpenDesktop failed');
6 h1 x: ]. i3 [. g- h* g# I1 @SetProcessWindowStation(hwinstaSave);
5 r9 x; z3 ?1 D( u- M P9 o. BCloseWindowStation(hwinstaUser);
. D/ d2 {8 U' E( W2 S2 ^- N5 D, |7 \Result := false; $ w7 g& O- n, A h) s7 F k$ D5 R
exit; : v5 c9 O* h8 L* o9 T( s# Y
end;
0 U6 h0 ]6 |& U c+ S5 O8 OResult := SetThreadDesktop(hdeskUser); 7 n A$ e% r+ g' ` o
if not Result then 7 j! E% J0 C' u5 Y8 i! I E
OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError))); ~5 G& C! T: e' @/ d
end;
7 P3 z$ Y' S c: @3 ]5 c* B q0 K
" T! w) q% V) Q5 m2 rprocedure DoneServiceDeskTop;
9 h+ m% w# w G/ O2 W6 }- pbegin
: [! T5 w) F, S// Restore window station and desktop. 9 I( J8 E4 v6 s4 N" @3 b% K4 x
SetThreadDesktop(hdeskSave); 0 A' ^6 k8 L0 @2 `: ~, ], g7 K
SetProcessWindowStation(hwinstaSave); ; l# i- Y- W/ M
if hwinstaUser <> 0 then 8 W" _# p, i% a v0 @
CloseWindowStation(hwinstaUser); ! @$ S% y; \! r7 x2 T/ y
if hdeskUser <> 0 then
g5 ?7 m9 x) k& O- h( gCloseDesktop(hdeskUser); " d1 ]" I0 W8 ~. x/ T6 D1 p# f
end;
7 u5 m0 h2 ?9 S6 r5 t# a
' O2 _0 E% m( x5 a" B* Q! Uinitialization
8 d- b+ v' H9 B. SInitServiceDesktop;
8 \6 t2 Q5 o7 u$ `finalization
s, }7 S% p$ J+ BDoneServiceDesktop;
5 v' H8 S' `; h' \end. / @1 F7 g6 V& U& v4 u T a$ q+ F; l
更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip
" i4 k3 }8 k# x' |& P9 b- c6 ]! d* W/ D2 x) C+ V, _2 Q S* b6 R
(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: 2 g9 D2 f( w+ }5 ~; y d" I" ^
( R) f' N: _; X0 D' C2 xunit WinSvcEx; - B" `; I% K/ \$ \( ^1 T! L% |
6 `4 F( R3 t [# _
interface ) O! Y+ m: [( j0 F' }% v
" t6 Y# P( ^& _: j8 Nuses Windows, WinSvc;
& H, Y; l9 B) g S
& Y, F$ j1 U1 f- Oconst
$ f5 w0 ^+ K6 V8 c$ L// ' p' E! {; m0 |5 j0 \( D# q. `0 y
// Service config info levels
7 Q3 v7 s" n2 h( F6 n// 2 ]; {4 u7 `7 V u1 h
SERVICE_CONFIG_DESCRIPTION = 1; ( R; B6 n& p+ Y, ^; h
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
zan
|