- 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. / U9 P+ h! ?8 \; f
(2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的.
, r0 `# a: a3 Q% h# U# W% M# _' ]: Y2 F& M# F* }
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. + |5 V& L- V0 j! U! g: h* u5 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: * B3 C6 r6 z I
: t8 ^! ~7 k* S0 o7 v8 I, j% r (1)DisplayName:服务的显示名称
|9 Z! c4 ~! B) G" d( t7 I: R' m3 B. O (2)Name:服务名称.
4 I- a8 @# A' \4 E9 A3 q% q- u
% {$ G* ^4 @! R; t 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.
- M6 k! A% Q2 q. p3 n I* Q. R7 A7 ~* J" R. u" X% }$ I0 Y
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. * f5 Y% Y# A$ @+ C: ^' |7 z: n$ }( N
: s( |; ~/ V6 ~) `. z7 W
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. % L) U* Z$ f& p$ t4 x; g
3 H. f4 e. V: k 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: , R0 ?2 ]$ S; r1 U
+ N7 d9 J" E+ s: {6 z8 u3 L
! p; q1 H6 o* G
unit Unit_Main; 5 a: h+ Z( D$ X9 V! _) k7 k
7 x) W4 n# c: }) I
interface
' F; H" G8 h b
; s9 G& L2 b/ r. `0 Q" d3 Xuses 3 H3 g. w5 r" c9 k
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
h' v/ O1 o$ G& _7 y4 G5 [1 ^) @( k% t2 m- @* y
type 1 a# I( R( z. [* [1 g
TDelphiService = class(TService) & ^. ~& _$ X! E" Z* b3 F3 a2 } `0 d
procedure ServiceContinue(Sender: TService; var Continued: Boolean); 8 C+ [- Y7 P1 I& l" i
procedure ServiceExecute(Sender: TService);
( U( z# [$ L, ?' t- Hprocedure ServicePause(Sender: TService; var Paused: Boolean);
6 O, e- h3 d" l; }: M8 g8 D' Qprocedure ServiceShutdown(Sender: TService); $ w3 V. ?- {4 k" L
procedure ServiceStart(Sender: TService; var Started: Boolean);
$ |2 o8 `2 h5 I* Y0 kprocedure ServiceStop(Sender: TService; var Stopped: Boolean); # ~+ a9 M# B0 O1 a
private $ A6 [+ y! ?$ m, ~4 J( u
{ Private declarations } ) {) z+ Z. U0 r1 j' ^
public / L" u$ g2 g. ~+ o
function GetServiceController: TServiceController; override;
- n' G3 E& w+ Y7 B1 V- ]{ Public declarations } 0 {! O) k q1 |1 ^
end;
3 q0 j' o9 K0 ]: h. M# q) _+ v8 O( E& z2 Y0 z
var " |/ S; }# u0 f% J8 G8 B& U( @' B2 d0 ~
DelphiService: TDelphiService; ( J- {( ?% n( @5 c1 s: Y
FrmMain: TFrmMain; . |3 z+ s+ S; O: Z8 V: S5 o
implementation
0 c, y9 B: `) n( i( w4 |$ C
! ?/ z- `( ]" k$ ?8 X" e{$R *.DFM} 3 C) g- ~+ u1 h
8 I, k- F9 N9 g& Z2 t6 x1 I
procedure ServiceController(CtrlCode: DWord); stdcall;
1 {( j+ }4 Z) X) C3 E/ l' i) Kbegin 3 V5 Z' ]6 y: m' Z
DelphiService.Controller(CtrlCode); + Z% M7 b- i; h+ V
end; 2 ?3 W* j2 \8 _) h; U
# l' K6 A; X! ]% c) Q6 }0 xfunction TDelphiService.GetServiceController: TServiceController;
; U% v+ U% {6 |begin ' E; @* w, \- J: R
Result := ServiceController;
+ R Q0 ]: W; B8 e5 K# V$ h# l) iend;
& m/ J/ v+ h) }5 @1 v' @3 Q1 O/ z4 |: i3 I3 m; p+ P
procedure TDelphiService.ServiceContinue(Sender: TService; % b$ {( ?. q; v6 q" o
var Continued: Boolean); . }4 {8 p/ L" Z/ P# \8 h
begin
# n- F$ o$ P$ `8 E$ @9 Vwhile not Terminated do
# [/ _& P# h" J+ }$ rbegin 7 z! A5 b7 A1 B' o* f! X7 w
Sleep(10); # n6 L7 O/ `' X8 S8 G* i1 G
ServiceThread.ProcessRequests(False); 5 I: D: Z' t6 m' ^# C/ ~
end;
6 z$ d3 s% F* y& Eend; ' U1 {( b; Z9 i) j% {/ |# L
+ L2 n5 Q$ r& Xprocedure TDelphiService.ServiceExecute(Sender: TService); ' R Q# v& N% X0 O7 _
begin $ V0 J( }) {3 D6 s
while not Terminated do ( @% z! e# i: }& { V% b, c
begin 4 x0 @! {. ]6 v! p n$ e5 n f
Sleep(10); ; q3 F/ v; f3 u6 c1 N$ h1 W
ServiceThread.ProcessRequests(False);
- O9 q! `1 [8 |3 |$ A; O, cend; & w7 ^* y2 M4 k+ }9 Z1 f
end; ! p# x: O9 a/ q( s+ Q8 a, b! P
K: @9 m( U% j2 E: S
procedure TDelphiService.ServicePause(Sender: TService; & F9 w7 F; J9 H1 f2 Z: ~1 k
var Paused: Boolean);
' r4 Y, {* T2 pbegin 4 Q# ] @3 H$ i
Paused := True; ; u& {( G9 |0 ?- O8 }+ M
end; ) L% ^% D5 N3 g& N
! \! h$ G& K2 _) r" Uprocedure TDelphiService.ServiceShutdown(Sender: TService); - E/ Y& b! H* S9 P, d6 F0 g* k
begin 5 [$ z4 a7 _) w& B
gbCanClose := true;
$ u5 I. g5 {! n, o0 WFrmMain.Free;
: w1 F+ l; u% e# B- g' gStatus := csStopped;
1 V. g2 I' T \% tReportStatus();
; m0 _) Y/ Y0 G9 O, n6 t% qend;
$ `* Q& {5 k, ^2 a9 C; b8 j6 t% E( Q; U# {) S& T
procedure TDelphiService.ServiceStart(Sender: TService; 0 ?& K* j+ @) W& b1 e! X
var Started: Boolean);
: s* n" M3 a/ Z0 |$ M# Wbegin
6 K+ y. H& }, i2 o$ k3 WStarted := True;
# h! X. L6 s/ z. o0 i6 n4 \Svcmgr.Application.CreateForm(TFrmMain, FrmMain);
. d9 `0 D: d7 D: RgbCanClose := False;
& o( E' y" a. w$ u( U' g5 `, bFrmMain.Hide;
- \; `9 L i: Tend;
' e$ f6 n: Y4 W7 `9 K) e
+ U' L* U6 c! ?. [) Z+ Xprocedure TDelphiService.ServiceStop(Sender: TService;
3 {4 O, X% K$ o: H6 @7 |var Stopped: Boolean);
9 O; r' h6 M* S! V4 Ibegin . A% J3 a7 ~' V3 k
Stopped := True; % {, W5 [$ T u
gbCanClose := True;
: X$ e! }2 o+ j) Z4 ~6 SFrmMain.Free; . R6 n* U2 u' e# }2 [# x+ l
end;
( Q0 c- h! a7 Y( V4 @: ]7 ?$ a' Z4 J" t& |
end.
( ~9 V4 I& `& J% \% X2 ^- x! o( o
" a( a* ^3 n8 u+ V: e5 `
5 u" i5 d. j( _6 n! }% D9 L1 A, J主窗口单元如下:
, u8 {" N8 k) _. E( K0 ]( R/ h# y0 e! `. p$ Z& R' J- R8 \: X
unit Unit_FrmMain;
) X! A w; z1 X6 M& s4 K. x! L M; t: X4 s
interface
. K2 {+ ]$ Z1 x! P8 u
( S* J7 {! j4 {+ E* Muses $ T0 z: Q% J2 L# ~) W5 P6 m2 l
Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, " _- F/ w# C4 K# K& I0 \
Dialogs, ExtCtrls, StdCtrls;
3 i' K4 @8 M3 Z d; L1 q1 B: |' o: D5 T
# |' h, a( D' [* Rconst
) V- |$ }6 |6 ^0 o: rWM_TrayIcon = WM_USER + 1234; 4 X8 x- w `/ \
type
' W2 b. m. n9 L2 s% YTFrmMain = class(TForm) - }4 g) d* @- d3 a
Timer1: TTimer; + @+ k* S1 X3 M2 G7 I! U: }
Button1: TButton; $ x% W$ M6 z8 W6 i' g
procedure FormCreate(Sender: TObject); . u7 `- ~8 ~" O" k- |5 F, T2 [
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
) J" ~) Q9 A( M2 @5 U& Rprocedure FormDestroy(Sender: TObject); % h- I$ A8 f5 A; ^( B5 u
procedure Timer1Timer(Sender: TObject); + S2 L2 [9 t1 R7 s
procedure Button1Click(Sender: TObject);
$ f! r, A# w8 q4 N3 A. X+ c* b2 tprivate
" e% L1 J: H& H( M+ @{ Private declarations }
0 e* ]8 I9 n4 x9 |( E0 CIconData: TNotifyIconData; # _9 j! B4 Z w1 g" t
procedure AddIconToTray;
/ |7 [ _- E5 r n+ N: Nprocedure DelIconFromTray; ; U, Y1 s3 y: e1 V! i
procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon; " t7 x4 l, P5 s0 q `/ p
procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; , b' U9 U. C. F2 |) O% d$ Q, n
public
" r# y2 v$ q/ k* e& R p{ Public declarations }
$ u) |% u6 q, U' E8 Qend; ! Y( S2 ^; Y0 Y4 g) z
& J m- a9 p# p8 a# V
var : G: z. F7 r X; k* s0 I- {* _- K. C
FrmMain: TFrmMain; : O, A z) u6 A" q! H0 q. ?
gbCanClose: Boolean;
9 M. u4 L4 q( a. W5 b& ~implementation $ p9 h* L0 _1 p$ x" T# z
1 ~- f, J' C1 e" X, t! r; e
{$R *.dfm} ; ?# E- j) d$ h7 e
) z* q( J, |5 R
procedure TFrmMain.FormCreate(Sender: TObject);
f5 a2 X) k& _ Nbegin
2 a6 l3 y) O0 N6 @, sFormStyle := fsStayOnTop;
7 I6 ]8 t" K0 oSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); * G4 r3 O. \ @0 k; K2 ]" i
gbCanClose := False;
8 a1 ~& @3 g4 c1 QTimer1.Interval := 1000;
8 O0 a3 s" C+ T8 q+ ETimer1.Enabled := True;
4 s+ U: D" j$ M9 e2 S0 {- J- |end; 7 K& U# V# {# k! B3 k
* B7 d6 ^2 Y0 x1 @- b
procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
' P4 i% L1 `) @8 V8 l& Xbegin 6 [% }( {$ g7 n; j, {
CanClose := gbCanClose;
$ R" q2 s6 _) w! }* J& sif not CanClose then 7 j$ ]" l: |. t; ?/ V Z
begin 7 F8 B! O2 W/ q* c; U% F
Hide;
7 ]& I/ b# {; }. N4 `end;
& A j" {% B1 ^ _. uend; . B' f5 H- s$ h0 ^4 B, U# H: B
# w9 m1 c! h1 V# y, xprocedure TFrmMain.FormDestroy(Sender: TObject);
3 V; u2 Z p0 ?" i3 X) u7 y4 D" dbegin
% R/ ?: R. k# n, m6 @0 eTimer1.Enabled := False;
- p/ n% G- e3 Y" ^DelIconFromTray;
% o4 g1 w8 N/ ^4 p( q/ T/ N/ ]end; ; C8 f1 x6 \& D d' ~' z' _
, w2 t! v" f) A$ Eprocedure TFrmMain.AddIconToTray;
6 }+ x7 C; N. a" Mbegin 3 _* D }2 q2 @. q6 [! ` g
ZeroMemory(@IconData, SizeOf(TNotifyIconData));
. [' W+ G. @. l6 |; W2 dIconData.cbSize := SizeOf(TNotifyIconData); }5 {2 z" c1 s% N- Y0 m' ~% G
IconData.Wnd := Handle;
0 I+ k, O8 W$ {1 }& SIconData.uID := 1; t) C- ^0 T" C& H" S/ i
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
0 P, g& F$ R* A; H8 n5 e9 NIconData.uCallbackMessage := WM_TrayIcon; ( n- [/ r; i9 J0 Z/ N6 `/ R' G$ Q
IconData.hIcon := Application.Icon.Handle; ; q9 R# o# p0 ~, ^/ b0 r
IconData.szTip := 'Delphi服务演示程序'; ; A7 H1 E, e* ]
Shell_NotifyIcon(NIM_ADD, @IconData);
, s6 \% r3 w: f5 E( m4 J8 `5 {% u3 Eend;
) G t0 ^8 m, A" \$ m- Z, ^) d! B# t: K9 S
procedure TFrmMain.DelIconFromTray;
+ _" R; z' f: {. sbegin 0 p: C4 O5 ]. X: i/ k, }# {
Shell_NotifyIcon(NIM_DELETE, @IconData); Q e6 }+ O7 n
end; ) r; ~# _1 D. e" |
; y8 [3 H a" |' v6 d
procedure TFrmMain.SysButtonMsg(var Msg: TMessage); $ @: s. H& K) Q: t/ j' T
begin
0 W0 @! n5 O! Y, pif (Msg.wParam = SC_CLOSE) or 1 h4 e1 K1 e9 V# ]/ P
(Msg.wParam = SC_MINIMIZE) then Hide - E i1 D4 Z1 h, R0 m
else inherited; // 执行默认动作
$ t! f& z( Q* a$ I% a$ ~end;
6 x& f5 Y' f$ |& c( t! Y# D( I8 C# t, S5 D6 d6 Y
procedure TFrmMain.TrayIconMessage(var Msg: TMessage); 4 H$ G3 ^" C" h
begin 9 t" K0 ]4 V z) a* x; o: ?
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
% `3 X4 d! B5 y! c3 Z& C( ]3 u$ bend; 3 |/ J& x+ e9 K/ C0 [$ S4 s' W9 b
" N q! ^/ ^5 pprocedure TFrmMain.Timer1Timer(Sender: TObject);
# s9 i6 t& c9 N5 Q3 nbegin
4 b- Y. }1 l5 H2 H) M0 ZAddIconToTray;
' N5 B1 W- U, ]( F1 j# ]# kend; * G- v9 z1 O+ z6 O" q5 T. E
% m& U( M+ y `/ w9 ?6 `
procedure SendHokKey;stdcall; * @0 |, d; K0 G
var
8 e' E: q. f9 M! w5 u/ L) R1 ]! F7 ?: cHDesk_WL: HDESK; 4 Q4 n# T- ^/ o' o# t, w, y
begin
2 }/ w% P0 E# w9 B5 U$ BHDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); - R5 p3 S0 R$ s. y3 q
if (HDesk_WL <> 0) then & N. D4 @/ U4 }, j" q/ e
if (SetThreadDesktop (HDesk_WL) = True) then & M3 ~9 A# r4 E1 K" [* {( a9 H
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE)); 6 O3 A8 A4 ]/ d X/ \' y( Z6 ^ S: Q! y
end;
/ X" _* z& h: c3 x( B V. K$ ^4 [
, X2 u8 N0 }* \! r, E6 hprocedure TFrmMain.Button1Click(Sender: TObject);
/ B9 M! W- B D0 Q( z. mvar ) ~0 n' r; X* G
dwThreadID : DWORD;
- `/ ~/ {' R9 p4 fbegin
3 n r5 p' P! Z; @" N4 hCreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
( D2 I$ A, @. k3 _$ S( gend;
/ J) D, j K- |
; Z0 ?' q& G% S9 h( E0 k' Nend. 0 W3 ?% O0 N) N/ p
8 t6 A9 P4 K6 T# C. @6 l5 j/ F, s
3 [" o7 B: y& F# A补充:
6 v- @! h( Q0 t- }(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. 1 b3 E( n$ `/ \. `* }7 ~
2 v2 K$ n3 r) q% B( K4 p
(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. 2 \/ B. M; w: B9 W& I/ A3 Q
, ?) H( Z2 | d(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: ' v; @, O" r5 B( d, j) ]& r) k
unit ServiceDesktop;
: [7 {/ a! A: `0 A9 y1 j9 k/ _3 k3 X) ^
interface
+ H) T9 L) a" t0 e0 Z
+ z" G' _8 l7 |" P. C/ s; B; ^1 gfunction InitServiceDesktop: boolean;
/ ?! l# b& ?& G) s$ xprocedure DoneServiceDeskTop;
( Q+ x' x: }' Z! T2 v6 }' R! P2 p2 ]5 R: X
implementation ( X+ g/ l3 W9 ]4 q8 g7 b; {2 K
( n" a0 q5 V2 uuses Windows, SysUtils;
9 o; ~! Q2 ?+ o+ G: B) n6 a. F/ G L. ^, x& C; p1 K8 m
const 2 K) E. u! m4 [
DefaultWindowStation = 'WinSta0'; . z% e2 a" D) |( _8 {; z
DefaultDesktop = 'Default'; * W: S1 Q4 C1 ~7 W
var # ]: p4 v- M9 ?) U% t
hwinstaSave: HWINSTA;
# L' s# E2 n$ U4 \" _) uhdeskSave: HDESK;
; L8 U/ c- Q# u, z4 AhwinstaUser: HWINSTA; 2 ?, x: C7 j# e7 @
hdeskUser: HDESK; 7 J1 v; W. Z& J% D1 h- w" q& }
function InitServiceDesktop: boolean; $ M7 z# C. U; `
var
* \. F4 A1 Z8 |; b7 f) E' d2 m/ ?dwThreadId: DWORD;
+ f5 b: x+ p8 P( n0 sbegin
# E% Y7 p4 T8 t q: s( h# X x- BdwThreadId := GetCurrentThreadID;
. p. _) Y" E2 r G$ t) |. M' N8 n8 D// Ensure connection to service window station and desktop, and
1 R4 Y6 j% d) f% G% r q* \9 `// save their handles.
; ~' h8 A- v0 `+ o; phwinstaSave := GetProcessWindowStation;
3 H4 A- p- C: f7 zhdeskSave := GetThreadDesktop(dwThreadId);
# `3 p) L7 F+ v. }
- _: y; j9 W6 N! Y& m
/ g5 O9 d/ Q2 A0 D& RhwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED); # G, a' f5 ^: k3 Y; d
if hwinstaUser = 0 then
9 F% L) H( ~3 \$ i: ^begin U2 Q8 @7 ^8 J* v4 R' L
OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError)));
; v- H- n; Y, j q# n OResult := false; 0 J* [0 ]( Y7 h; t- y
exit; / e/ M e! G1 L
end;
1 ?6 Q' [; p* `$ I
" V6 h* [- w3 C4 \9 p( K' @. aif not SetProcessWindowStation(hwinstaUser) then
+ p# D' `$ z& h5 p( h+ l9 ibegin
5 i! u I! i( GOutputDebugString('SetProcessWindowStation failed'); & p/ d e. m$ F
Result := false;
3 q* b. N6 w9 K# ~$ Oexit;
* M7 F2 T- _5 k9 X7 zend; - p) d) L) w! ?
+ Y; B; O9 m9 J) O# h+ ^! A' YhdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); " R- b( y1 q+ l0 u* E) V
if hdeskUser = 0 then # w3 l9 V0 N4 Q- `" B
begin ! o; ?; n N7 t3 d& q+ L: l$ e
OutputDebugString('OpenDesktop failed');
- |% i! D- J' }( g2 |SetProcessWindowStation(hwinstaSave);
1 q! M) \4 N8 i6 {7 W6 o+ [8 {CloseWindowStation(hwinstaUser); 2 p( R/ D/ \# J) [- Z" v
Result := false;
9 v, {! U, n# Kexit;
. G* t, D4 J) Y1 C! ?end; & F( O1 _( G" t1 |
Result := SetThreadDesktop(hdeskUser); , h3 u5 |4 r9 ]7 m$ B! y. \
if not Result then & l" ?. z. v' b D2 r
OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
3 _. {5 y) v+ p$ [' M8 O+ [4 hend;
9 B( b% e5 a/ X/ b& }7 Z8 B* m) {# y: X! a3 N ?* G. ?, `/ K
procedure DoneServiceDeskTop; / U* M/ P' F: C1 J, ^
begin 1 z% f- q. b" m1 r% i# I- y% \
// Restore window station and desktop. 9 z; S) Y. F* ~8 B# c& h
SetThreadDesktop(hdeskSave);
* r; [: \( e: b2 W6 P+ f. [& z# `4 x3 p/ USetProcessWindowStation(hwinstaSave);
2 d, x! V# Z% i3 Z8 t& c8 Xif hwinstaUser <> 0 then 0 s# q7 y) g2 i
CloseWindowStation(hwinstaUser);
, |& ^. r( R; ^4 |; F2 K4 S; q( Zif hdeskUser <> 0 then 0 {" w( h ?$ P" {& I1 Z* `
CloseDesktop(hdeskUser); % s6 a, _. y! m; n. |% J0 k) }
end; : X5 V' T! G) h/ [3 z0 p* M0 R& P
* ~2 O( }, D" F. ^2 X
initialization
& n0 e8 A' W! x# S' @) G5 T0 M# Y# z7 kInitServiceDesktop;
, e7 N! g& M& n' ofinalization
- O- }% Z. ^7 G0 {9 E8 PDoneServiceDesktop; & G5 V# _7 P4 e) u/ h
end. 5 f) W- m3 ~) ]6 D% K& C
更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip
/ p9 ~' G0 {! Y7 q) u% v* z! r- D' z/ u2 r0 N7 U% s
(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:
' e# p f( _3 q$ n$ K
2 I( C B! t, O, F( C0 wunit WinSvcEx;
* l) }- Y# c' I5 Z
e; D# C9 n0 N1 P) tinterface 8 W1 }( [) P) e1 q( m+ m) D
3 Z" Q& J+ |* Q6 J( t' F& Luses Windows, WinSvc; * Z5 s0 g( A( u2 D* a9 U9 F' _$ y: N
; m3 ^3 }, r! g" r# Aconst : ~2 v- p3 f& P+ Q1 t
//
- V( ]7 G, G8 ?* g/ o p. M// Service config info levels
, V `8 F/ ^: ^: L% r5 \% Z; F* w// 8 `4 ?6 h) q. r* l7 \2 w
SERVICE_CONFIG_DESCRIPTION = 1;
9 y$ V+ w2 F$ l3 \ FSERVICE_CONFIG_FAILURE_ACTIONS = 2; |
zan
|