Delphi でサービスを作成しました。そのサービスで別のアプリケーションを呼び出すたびに、アプリケーションは実行されていません。なにが問題ですか？
ところで、私はshellexecute、shellopenを使用するか、cmdで呼び出しました。これらの方法はどれも機能しません。
これは私のコードです:
program roro_serv;
uses
SvcMgr,
Unit1 in 'Unit1.pas' {Service1: TService},
ping in 'ping.pas';
{$R *.RES}
begin
Application.Initialize;
Application.CreateForm(TService1, Service1);
Application.Run;
end.
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs,
ExtCtrls, DB, MemDS, DBAccess, MyAccess, Menus, forms, IniFiles,
ComCtrls, wininet, Variants, shellapi,
FileCtrl, ExtActns, StdCtrls, ShellCtrls;
type
TService1 = class(TService)
Timer1: TTimer;
procedure Timer1Timer(Sender: TObject);
procedure ServiceExecute(Sender: TService);
procedure ServiceStop(Sender: TService; var Stopped: Boolean);
procedure ServiceStart(Sender: TService; var Started: Boolean);
private
{ Private declarations }
public
function GetServiceController: TServiceController; override;
{ Public declarations }
procedure run_procedure;
procedure log(text_file, atext : string );
procedure loginfo(text : string);
function CheckUrl(url: string): boolean;
procedure execCMD(CommandLine, Work: string);
function DoDownload(FromUrl, ToFile: String): boolean;
end;
var
Service1: TService1;
iTime : integer;
limit_time : integer = 2;
myini : TiniFile;
default_exe_path : string = '';
default_log_path : string = '';
appdir : String = '';
implementation
{$R *.DFM}
uses ping;
function TService1.CheckUrl(url: string): boolean;
var
hSession, hfile, hRequest: hInternet;
dwindex,dwcodelen :dword;
dwcode:array[1..20] of char;
res : pchar;
begin
if pos('http://',lowercase(url))=0 then
url := 'http://'+url;
Result := false;
hSession := InternetOpen('InetURL:/1.0',
INTERNET_OPEN_TYPE_PRECONFIG,nil, nil, 0);
if assigned(hsession) then
begin
hfile := InternetOpenUrl(
hsession,
pchar(url),
nil,
0,
INTERNET_FLAG_RELOAD,
0);
dwIndex := 0;
dwCodeLen := 10;
HttpQueryInfo(hfile, HTTP_QUERY_STATUS_CODE,
@dwcode, dwcodeLen, dwIndex);
res := pchar(@dwcode);
result:= (res ='200') or (res ='302');
if assigned(hfile) then
InternetCloseHandle(hfile);
InternetCloseHandle(hsession);
end;
end;
procedure ServiceController(CtrlCode: DWord); stdcall;
begin
Service1.Controller(CtrlCode);
end;
function TService1.GetServiceController: TServiceController;
begin
Result := ServiceController;
end;
procedure TService1.Timer1Timer(Sender: TObject);
begin
iTime:=iTime+1;
if iTime=15 then // (limit_time*60) then
begin
itime:=1;
run_procedure;
end;
// loginfo('Defaultlog : '+default_log_path+'; exe : '+default_exe_path);
end;
procedure TService1.ServiceExecute(Sender: TService);
begin
Timer1.Enabled := True;
while not Terminated do
ServiceThread.ProcessRequests(True);
Timer1.Enabled := False;
end;
procedure TService1.run_procedure;
var
i : integer;
sUrl, sLogFile, sAction, sAct_param : String;
begin
for i:=0 to 20 do
begin
sLogFile:=default_log_path+myini.ReadString('logs', 'log_file'+intTostr(i), '');
if fileexists(slogfile) then
begin
loginfo(slogfile+' tersedia');
sAction:=myini.ReadString('logs', 'action'+intTostr(i), '');
if ((trim(sAction)<>'') and (fileexists(default_exe_path+sAction))) then
begin
// this line is don't work in servcie
ShellExecute(Application.Handle, 'open', 'c:\Windows\notepad.exe', nil, nil, SW_SHOWNORMAL);
sAct_param:=myini.ReadString('logs', 'action_prm'+intTostr(i), '');
// this line is don't work in servcie
execCMD(sAction+' '+sAct_param, default_exe_path);
loginfo(sAction+' '+sAct_param+' defpath : '+default_exe_path);
// this loginfo works
end;
end else
begin
end;
end;
end;
procedure TService1.log(text_file, atext: string);
var
logFile : TextFile;
begin
AssignFile(LogFile, text_file);
if FileExists(text_file) then
Append(LogFile) else rewrite(LogFile);
WriteLn(logFile, aText);
CloseFile(LogFile);
end;
procedure TService1.loginfo(text: string);
begin
log(ChangeFileExt(application.exename, '.log'), formatdateTime('dd-mm-yyyy hh:nn:ss ', now)+
text);
end;
procedure TService1.ServiceStop(Sender: TService; var Stopped: Boolean);
begin
myini.Free;
end;
procedure TService1.execCMD(CommandLine, Work: string);
var
SA: TSecurityAttributes;
SI: TStartupInfo;
PI: TProcessInformation;
StdOutPipeRead, StdOutPipeWrite: THandle;
WorkDir: string;
begin
with SA do begin
nLength := SizeOf(SA);
bInheritHandle := True;
lpSecurityDescriptor := nil;
end;
CreatePipe(StdOutPipeRead, StdOutPipeWrite, @SA, 0);
try
with SI do
begin
FillChar(SI, SizeOf(SI), 0);
cb := SizeOf(SI);
dwFlags := STARTF_USESHOWWINDOW or STARTF_USESTDHANDLES;
wShowWindow := SW_HIDE;
hStdInput := GetStdHandle(STD_INPUT_HANDLE); // don't redirect stdin
hStdOutput := StdOutPipeWrite;
hStdError := StdOutPipeWrite;
end;
WorkDir := Work;
CreateProcess(nil, PChar('cmd.exe /C ' + CommandLine),
nil, nil, True, 0, nil,
PChar(WorkDir), SI, PI);
CloseHandle(StdOutPipeWrite);
finally
CloseHandle(StdOutPipeRead);
end;
end;
procedure TService1.ServiceStart(Sender: TService; var Started: Boolean);
begin
appdir:=ExtractFileDir(Application.ExeName);
myini:=TiniFile.Create(ExtractFileDir(application.ExeName)+'\setting.ini');
limit_time:=myini.ReadInteger('setting', 'limit_time', 0);
default_exe_path:=myini.ReadString('setting', 'default_exe_path','');
if trim(default_exe_path)='' then default_exe_path:=appdir+'\';
default_log_path:=myini.ReadString('setting', 'default_log_path','');
if trim(default_log_path)='' then default_log_path:=appdir+'\logs\';
end;
function TService1.DoDownload(FromUrl, ToFile: String): boolean;
begin
{ with TDownloadURL.Create(self) do
try
URL:=FromUrl;
FileName := ToFile;
ExecuteTarget(nil) ;
finally
Free;
end; }
end;
end.
run_procedure コード行を参照してください。
簡単に言えば、自分のサービスから別のアプリケーションを呼び出すにはどうすればよいでしょうか?