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我的地盘我做主
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(1)不用登陆进系统即可运行. 3 D# V2 @* T1 H' N0 z8 C& z8 n( ]4 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. 9 i) f9 x0 y* |0 o5 w. N& `
6 X+ G K# J- L, s
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. ; P' c2 V9 t# {; y, \* ~/ }
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:
( D& r2 V( d* L9 U7 x& V0 E- ~+ R4 k+ Y3 b5 B' ~' W( |1 Y* I# c
(1)DisplayName:服务的显示名称
, s) i% b8 t8 @2 o (2)Name:服务名称. % R' J+ k. f0 V, g* p
5 e* |8 w; J2 k4 K/ }$ F 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. % J% }* X A8 w$ Z* I4 Z# U$ C$ U
' w/ `& r6 J9 C& d0 R) a
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. 2 ~& k7 V! _2 I$ U
+ y7 e! l% @" J, o1 _: l. N
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. 7 U+ e1 x) c- J: E2 x7 c6 c
. L2 C$ n4 U8 f3 j! r+ L; q 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: 7 k. l; K+ N# n' e9 d& F- X
- u3 s: k' K2 t7 A& |; S
( Q- L. z n, p: E- s# Bunit Unit_Main;
% e4 e, z: W/ F* |- _7 x, N: k0 N0 l
interface # w( O: H6 ]( \- u/ n
5 ^, E$ B. |; K' N, ?6 W# u" `7 `uses 9 i9 H4 T+ Z* m* E
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; ' D! a8 e, i: s
4 W" d8 l1 [+ j( X
type 1 |! d( d+ {7 W- W9 z, E& z
TDelphiService = class(TService)
% ~% v8 t% N) A9 c) @procedure ServiceContinue(Sender: TService; var Continued: Boolean); - \2 P3 v; A5 K* D: N5 J* C3 ]
procedure ServiceExecute(Sender: TService);
1 ~8 E" h6 C' f$ @% [procedure ServicePause(Sender: TService; var Paused: Boolean); 8 L+ B6 w1 n/ i$ C
procedure ServiceShutdown(Sender: TService);
; ]* M- A( ?% {# G+ @" tprocedure ServiceStart(Sender: TService; var Started: Boolean);
' Q* \7 c+ F: |. r" i( ^# dprocedure ServiceStop(Sender: TService; var Stopped: Boolean);
, B; f- m4 n( m- I8 ~# F/ Nprivate
" Y3 a! V' H7 r2 _{ Private declarations } 1 j0 A. d' R7 ~3 {3 p( F/ G; Q7 e5 a# M
public
! p) Y4 U! L6 X' Lfunction GetServiceController: TServiceController; override;
% ^" |" t$ k6 ~4 m8 ?9 y2 ^0 p$ P{ Public declarations } 3 i- H6 F8 T& c( B. o1 L' T8 _4 @
end;
+ s+ D0 X+ L7 r! K6 }
0 E3 i8 x: b3 a, O- P2 kvar ( u' C/ }1 i% I l- X" Y
DelphiService: TDelphiService;
5 t# X9 S& c9 }6 ^) T0 WFrmMain: TFrmMain; " K/ K4 _2 p( W% k7 P9 z
implementation
% R& |) e3 W A. x$ c+ N" c" _- g3 f' F! U
{$R *.DFM}
' C& l7 R; j! l. a. T( T {- Y& L1 b- x1 v5 w% Q/ i q
procedure ServiceController(CtrlCode: DWord); stdcall; % i. l+ Q: M, J6 [$ S7 d+ z
begin
% _: Z$ v5 @4 ADelphiService.Controller(CtrlCode);
; }1 u* D7 W& Gend; . n% b# T. `9 \) c
( G3 B, Y# n& d& \
function TDelphiService.GetServiceController: TServiceController; 1 a8 C9 H+ f0 S) {$ G( P' u
begin
: H5 G/ S5 {/ a. |* O/ VResult := ServiceController;
( Z+ |4 ~ \' m2 N) w |' gend;
7 {; S* `; ^1 O) f5 J2 J, g# M# q$ K( F$ A, L7 e
procedure TDelphiService.ServiceContinue(Sender: TService; , c$ V4 x! [7 l2 h; B) @4 x7 ?- o
var Continued: Boolean); ! G" l" W0 \7 a! ^' }( ?/ u/ i5 Y
begin 3 p+ \1 z; W, L4 B% z
while not Terminated do - \1 _* x" k' |% O& Z+ C$ X# b
begin
/ p, s7 W# l* Q4 HSleep(10); 5 L/ Z& h* V* N5 X+ q4 @
ServiceThread.ProcessRequests(False); - ?' W! R* v. K0 N) k+ T
end; z I! P( j/ H- l& D
end;
& n$ S+ T( D( y% l- V) j% z/ b1 G+ ?2 j1 N) ?+ m% `/ U
procedure TDelphiService.ServiceExecute(Sender: TService);
1 @; O+ M% |9 D3 G- cbegin $ j1 Z4 u6 {9 @: p5 w3 U: ~7 Q6 f
while not Terminated do : l1 Z! n, e" X
begin " ~) s9 Z2 n m4 |! |) Z3 u' K
Sleep(10); d5 ~& w, ]5 ]1 I
ServiceThread.ProcessRequests(False);
- e' F/ k" s: j* B( Uend;
0 k/ h& D$ S) @5 iend; ; c u0 p# `) n. _3 D
6 p& q7 F O: Iprocedure TDelphiService.ServicePause(Sender: TService;
: E" W; v6 m$ D3 Z, ~' r) o0 ?$ Avar Paused: Boolean); / @9 {0 Z3 `. z% d% Y& R
begin
- ?# x/ u% | i8 UPaused := True; " _$ w1 n$ @/ g) l. n F) D: c
end;
. _( W6 i; W, ~3 ^9 V
/ \9 K1 C; W4 Y; Iprocedure TDelphiService.ServiceShutdown(Sender: TService); - ~4 \5 b( t. b' b4 D
begin
8 |! F3 T. I; M# {" h9 x4 J% _gbCanClose := true; , U: L7 G! E. U
FrmMain.Free;
' h# {3 |" {/ Z, K- T _Status := csStopped;
4 [0 i4 b* L8 S8 Y8 ]9 q3 PReportStatus();
" h0 R, m5 N0 R" m* h$ wend;
8 L4 h+ [$ }/ i0 M0 u
/ F S/ d8 C* m& mprocedure TDelphiService.ServiceStart(Sender: TService;
/ v f3 ?! G* Q H! a8 ^var Started: Boolean); 6 a. x0 h& s3 ~% `
begin ' H6 ]% L+ ], }6 |3 R
Started := True;
( y' E4 A9 r( _' NSvcmgr.Application.CreateForm(TFrmMain, FrmMain);
e/ t8 Q8 @& i0 f2 NgbCanClose := False;
. c4 _2 @; [* y4 q4 b8 Z" L3 F4 ^FrmMain.Hide; ; Z0 N' m. ]. u% [1 N
end; ( k& M5 U1 u4 O; J
% d5 v5 F0 f- I! X9 E& q& F q
procedure TDelphiService.ServiceStop(Sender: TService;
; G5 c; h+ Q. ^var Stopped: Boolean); ' S! [+ Q7 w2 K- Q8 N" p
begin 4 ?( v1 i7 `' _5 E: K
Stopped := True; # \' j2 {3 n W. O$ N
gbCanClose := True; % E; _# T v+ q" ]# R: D# r" L; g
FrmMain.Free;
7 G8 H# K2 e5 \) W# Z8 {end;
' b {# W) w+ x# D* \# S6 [; j; ?# z; G" s% v
end. # v; @3 C8 p3 Y: A. L% }
" M i2 ~$ w& z! {0 v& ~& R
: b4 {' S5 I0 Q* c* C: h5 i主窗口单元如下:
' C, N* a1 @" O# p2 E
! ]2 M4 }# Z$ Y% c3 iunit Unit_FrmMain;
. g% `, O! I+ |7 e- Z0 K9 `4 o9 L S
interface ' Q/ V3 y$ {9 \) Z3 y3 v
6 S% o9 E* {3 Suses
- y1 `, K0 ?6 L+ L, J VWindows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms,
6 z( C; n8 ~9 q: h$ B9 H9 U) DDialogs, ExtCtrls, StdCtrls;
& l1 L- A- b- c- R/ k: {9 _# A/ S q1 s" c( a$ i' ^
const 3 V% J5 o% ?' S9 D( c0 o1 j, g
WM_TrayIcon = WM_USER + 1234;
4 B: C% W A; R) @- ftype w# e2 O4 f& s. w" D9 ?
TFrmMain = class(TForm) 9 g5 n4 y5 g4 a0 s" H9 M
Timer1: TTimer; # H; z0 R/ Z/ { g7 C) l
Button1: TButton;
" X# N2 Z% R! g5 [7 {# n. Aprocedure FormCreate(Sender: TObject);
) N5 @$ |/ s K+ Q! Vprocedure FormCloseQuery(Sender: TObject; var CanClose: Boolean); 8 U. M1 g2 Q# n) w$ d8 C" F$ X
procedure FormDestroy(Sender: TObject); . L6 Q9 u$ \+ T0 X" }- q0 A
procedure Timer1Timer(Sender: TObject); : G* _0 c4 O1 ^
procedure Button1Click(Sender: TObject); ' C2 r$ m9 s/ e. @
private
$ v: Z6 |; @$ \/ f{ Private declarations }
; b1 k, L$ ~* y6 p. C5 X) D$ y* EIconData: TNotifyIconData; ' w8 U$ o {+ c0 x! E3 P( R- r8 T4 a& F
procedure AddIconToTray;
% J" {1 R" F1 S9 l1 C8 aprocedure DelIconFromTray;
3 x+ { E+ b3 bprocedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon; " Q6 c r! U y5 z4 d
procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND;
5 {' k5 Z" j, m3 m; j: h0 ?2 fpublic
$ g+ }/ { d I6 j6 _" I( e/ f# b, @{ Public declarations }
% T' s; H( t$ F) W) Zend;
! h4 ] {2 D! I) L- ]/ q, t9 s9 t: |
2 p' H, a) d- S, C: ~# \var
. ~+ T8 t" [' T- y' n, f8 CFrmMain: TFrmMain;
; E# h& p G( C. E6 z7 }, Q. @gbCanClose: Boolean;
% A9 x p7 `# Y7 Y( ?; g' _4 Mimplementation
' @- r& k) M/ ]! `3 x( t0 f) @' T( @$ S
{$R *.dfm} " U2 k1 } V. Y; T
3 o* E- F1 t2 i5 Q1 u: s
procedure TFrmMain.FormCreate(Sender: TObject);
2 X+ U6 h# {1 A0 w* @) Jbegin
0 E- G4 h# x0 b# Y& KFormStyle := fsStayOnTop;
. m% k" K# R, Z/ V: K3 q F+ eSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
2 o d k1 s9 x7 {; e5 T1 ~gbCanClose := False;
# v. o) h: n& bTimer1.Interval := 1000;
` q; _6 L$ z! FTimer1.Enabled := True;
. e D9 \: H, K- G8 S; @' t- [* mend;
& y. Q) w v6 }
" t* y5 y/ A% a& p) eprocedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean); # p. P& Y+ X2 [4 t7 q
begin
2 |6 T: V! ?& _( U8 X6 aCanClose := gbCanClose;
5 ]: q. G8 K& R" f, T! S) Fif not CanClose then ( G" ]5 e" `1 F C- ^7 h+ f! N
begin $ Z) A P% n9 c( a1 ]5 k- d5 B
Hide;
: { u( j: a: r3 {6 x9 l6 E# Yend; ; D+ P7 H0 {- Y1 U; Z3 ^
end; 3 l: x7 N2 q c* N
- G8 o2 [/ \' O; @% \+ F& vprocedure TFrmMain.FormDestroy(Sender: TObject); 2 f: E' I9 w8 _: X/ y
begin
; B# ]4 X% H: a9 u# s3 _) q+ ^Timer1.Enabled := False;
2 g. r2 _0 q+ i& ~; }2 GDelIconFromTray; 6 h2 z& b$ c* ^5 G% Q
end; 9 d9 {9 `6 `4 \; V( |9 B, f+ V
. G+ u' N t! ~procedure TFrmMain.AddIconToTray;
# y* r" v/ k. R. v. s6 f: ebegin - ^/ K, c" w$ n* ]
ZeroMemory(@IconData, SizeOf(TNotifyIconData));
- s/ i5 N) j6 mIconData.cbSize := SizeOf(TNotifyIconData);
$ F9 S" p; ~% u3 K0 rIconData.Wnd := Handle; . b2 ?6 Z7 H4 q; N; L1 ~% I/ D
IconData.uID := 1;
6 D, s' q0 y, t. h1 \. f; nIconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
( N5 A8 k9 K" Q2 oIconData.uCallbackMessage := WM_TrayIcon;
% g+ N) `- W8 [IconData.hIcon := Application.Icon.Handle;
) W8 u! L5 b' _( s; x7 x( }' QIconData.szTip := 'Delphi服务演示程序'; 2 H7 M- z( T2 `
Shell_NotifyIcon(NIM_ADD, @IconData);
% |9 ^# @' Q D3 q2 e+ S* Cend; ; ^! Z3 L# H% X) @
& ]- W. `) H8 g$ ?# j* G0 V6 N$ W& p
procedure TFrmMain.DelIconFromTray; ) z. A. a7 o# O; \
begin " h6 r' X: C& j
Shell_NotifyIcon(NIM_DELETE, @IconData); + N' h. S# p1 A' {
end;
+ e3 T8 z+ a2 L- f1 C% m( ^8 |& N% y
procedure TFrmMain.SysButtonMsg(var Msg: TMessage); + U5 l+ Y# r9 b, [
begin & B( z; M: m; M" O) |( K
if (Msg.wParam = SC_CLOSE) or
! x" ?5 a# d: Q6 E0 P(Msg.wParam = SC_MINIMIZE) then Hide
; k$ Q& s0 h+ Xelse inherited; // 执行默认动作
0 Y, V" ]9 ]0 }; O t, w, Xend;
, e# Y% w4 R- y0 n+ {+ X4 Z; j; O0 @- G v/ E
procedure TFrmMain.TrayIconMessage(var Msg: TMessage); ( E t2 k# g; [. D& W$ \
begin * @- [/ Y0 N& L5 \& v' \
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
2 A C( |/ i/ K% {/ {end;
$ }7 M$ x0 {* w3 ^8 h- X8 e0 _" y. N4 ^' |0 w8 ?
procedure TFrmMain.Timer1Timer(Sender: TObject); 5 E- c( z( i: B; J! ^. i
begin ' g `" l6 e! I
AddIconToTray; + c1 P$ t `+ i' n/ M3 h$ |6 X
end; W! k1 ]; Y0 h
6 t0 @( `4 ^* A9 C; }procedure SendHokKey;stdcall; ; p) b, i8 T" U' J3 B9 W' L
var
- C H" t& l7 MHDesk_WL: HDESK;
; Y& m g& A9 K( O9 n! w5 {0 @8 Dbegin
$ w' y* l& l6 g" I3 y+ K1 X9 a) UHDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); 4 y: B! a# c# b% C8 U$ z
if (HDesk_WL <> 0) then ! q! I/ B' |- k+ [( U
if (SetThreadDesktop (HDesk_WL) = True) then
# k" Q3 J( i. D! o) y4 zPostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
+ K$ {! L: H5 L% M$ w( Qend; ( A) l) w% X# U
9 s$ }. t% k+ D0 \6 ~
procedure TFrmMain.Button1Click(Sender: TObject); & C, a8 f, V9 d, V9 n$ [; v) L
var
3 K9 G' v( G% R3 ^- R* XdwThreadID : DWORD;
0 K" m! p8 x# n, n; K( `begin & m$ V! T E! d& `* e* [
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
+ j- I, }* l2 [end;
8 x, r o5 T" q" i0 Z& `- ^ M( C* x j# p
end. 8 O, l3 N& l5 v" P. r) A/ F( G
$ z6 p+ f" M0 N/ G
5 w1 C* W2 Q2 P& Z" f/ K3 w! x- g补充: 3 P% ]5 q9 \! W1 d1 u) F9 e& Z: [
(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. 7 Y! h4 i- P# k M7 p0 r$ e
6 H, ]* F( k2 t, M(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. 1 t( O& f4 M3 A2 w+ c% K. f
o0 ~, [: D; j5 R" F3 g# N5 L, j9 Q
(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: 2 m7 ?$ q5 k% i; }* Z
unit ServiceDesktop; + h+ n8 j2 ]* u: ^
& E* S9 X0 @9 R5 h, @$ b& u
interface $ `* e. K A3 t! O- G% `/ {5 z
$ x+ h' }8 @- Q- ?function InitServiceDesktop: boolean; 4 P* ]( j( I/ O/ Z' t. H6 }* ^
procedure DoneServiceDeskTop;
; E8 f0 F8 O# B9 \7 `) Y: B& i6 ~
0 m" c& T: n1 timplementation , G X# N+ u9 Y! G" I* P9 Z4 q5 G
0 I% I" I M- f6 ]uses Windows, SysUtils; * H# W8 d. V; E4 ^
- ?3 q6 t& D' t& o
const
9 X( @3 _) u: f( D7 o* A8 MDefaultWindowStation = 'WinSta0'; 1 N" `' Z- i1 y2 b& Z! ]
DefaultDesktop = 'Default';
/ M q; Y" u8 Q$ w( U2 D: bvar
|8 q' H$ o' h4 ]& x' lhwinstaSave: HWINSTA; 8 r8 _1 r; ^6 o5 m; {- X; s
hdeskSave: HDESK; . ^8 R6 y2 }' ~8 A( X
hwinstaUser: HWINSTA;
+ P$ _ Q, E% T$ u! V" UhdeskUser: HDESK;
5 {- l1 |# g1 D/ B8 Z# E, F: d4 q5 \function InitServiceDesktop: boolean; + G9 j8 L: m5 t5 |6 ^) c4 E" s! v
var
0 C6 Z. |3 K6 DdwThreadId: DWORD; / c; g6 L" E7 x9 K0 l, b6 O
begin
8 O+ i k& G- [dwThreadId := GetCurrentThreadID;
1 u& X, Q0 N7 u8 Z// Ensure connection to service window station and desktop, and ; s3 R# {1 C+ ]' D& N6 l/ |
// save their handles.
! c- t; B) V( }! l$ ^$ bhwinstaSave := GetProcessWindowStation;
3 T5 q' _! Z& h& v! k; {; @- ghdeskSave := GetThreadDesktop(dwThreadId); 5 \0 V7 h1 r/ z& s) j2 m. @
% k2 _5 s7 `9 O
7 a. s0 g4 w5 ohwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
0 {4 |- P7 R9 I. v% iif hwinstaUser = 0 then , c. G$ d) P8 F* K0 W2 h
begin
& v4 M* g* }4 V, hOutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); ; l6 u% S7 N- R& R# f) k
Result := false;
: B# L$ Y; m; R$ R7 Q$ Uexit;
p/ H. l- V4 j1 A2 Gend; ; [3 }4 v6 }3 k2 {4 D( [' l
# K3 y; s$ e: d9 S# D4 P5 R8 ^if not SetProcessWindowStation(hwinstaUser) then 4 r& {% O$ _! o( W" [' r' G
begin |( r- a; P; B, T8 A: \& G) F
OutputDebugString('SetProcessWindowStation failed'); 3 G+ W- j: u) F& j5 l- x
Result := false; ) p+ q4 r9 h. J/ s1 j" Y0 f
exit;
* W2 v* w6 A7 q1 I' wend;
. w6 o" ^5 b9 d3 \4 K8 m1 N9 W- V6 _
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED);
1 g, H6 k$ y+ K% o: K) K4 S0 Wif hdeskUser = 0 then ! r' r" ^% k4 \7 O6 P( k! N
begin
' f( B$ X: F" ~$ s" e1 QOutputDebugString('OpenDesktop failed'); ( B2 q- n3 @6 v. t
SetProcessWindowStation(hwinstaSave);
, L6 {) m! _/ X$ u# q& e. q- p8 U6 f( {CloseWindowStation(hwinstaUser); 0 g0 s3 R" O9 H/ x" t
Result := false; , v" }; k+ g5 c J# v3 d6 E1 R; C
exit; 5 z6 x [/ D: K* g! l0 X% L
end;
- W7 F" \, S* uResult := SetThreadDesktop(hdeskUser);
7 j3 }- x. b! {" V: \if not Result then
/ t: K0 H, n+ |7 YOutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
& U- M( B V# ~ g( w; qend;
0 M2 ~1 V7 |/ L- r! F2 F9 q) t* X0 ~/ Y& f) v0 S( D, i% f5 |/ D
procedure DoneServiceDeskTop;
( ?) @4 x ^# N0 tbegin
4 { {" l3 K) A# k Y# W- j// Restore window station and desktop. , @, B9 h/ `2 O
SetThreadDesktop(hdeskSave); # E' l( K% a; x0 l7 K0 a" Z9 a
SetProcessWindowStation(hwinstaSave);
: |- u2 f! z9 D& I- @9 ^5 Nif hwinstaUser <> 0 then
# _) \( ?& P# r: K. z7 A% d3 o7 M) [CloseWindowStation(hwinstaUser);
% p5 y7 l6 ~: a6 T: `0 Uif hdeskUser <> 0 then
, ]3 N5 v7 |5 f1 F* _CloseDesktop(hdeskUser);
9 k& v; ]5 }! B0 d9 K/ tend;
0 E( o9 ~$ V( f8 _, P, C
4 ]) v0 j4 q; u5 S$ winitialization
. k* Z, ?5 [$ HInitServiceDesktop;
( k- E- n, Y b6 C3 i3 j4 n Afinalization
; K. s& F& { u Z) zDoneServiceDesktop; : s, m& x1 G( Q' y' O1 r
end.
" O: @' h2 X3 X' V. L, d更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip
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3 {% |6 V X3 Z5 _& K2 c# M2 V- V(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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8 D- E- J% T5 R; eunit WinSvcEx; ' Z" V) B" q3 x6 Z
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interface
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uses Windows, WinSvc;
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const 0 D% q& c7 C2 y9 n
// ' X8 @8 m: g" n0 W. N# ]2 V6 L
// Service config info levels + u' i8 T3 H1 U% u( n0 E9 }8 x
// 1 R9 u$ ?; o! }7 l: W
SERVICE_CONFIG_DESCRIPTION = 1; 5 r* T7 L# x: c4 N- _! j% C
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
zan
|