以下代码可以实现既可以服务运行,也可以桌面运行,而且可以限定服务和桌面只运行一个。如何限制系统服务和桌面程序只运行一个在工程加入下列代码可以设置系统服务和桌面程序只运行一个。 program FleetReportSvr;uses SvcMgr, Forms, SysUtils, Windows, SvrMain in 'SvrMain.pas' {FleetReportService: TService}, AppMain in 'AppMain.pas' {FmFleetReport};{$R *.RES}const CSMutexName = 'Global\Services_Application_Mutex'; var OneInstanceMutex: THandle; SecMem: SECURITY_ATTRIBUTES; aSD: SECURITY_DESCRIPTOR; begin InitializeSecurityDescriptor(@aSD, SECURITY_DESCRIPTOR_REVISION); SetSecurityDescriptorDacl(@aSD, True, nil, False); SecMem.nLength := SizeOf(SECURITY_ATTRIBUTES); SecMem.lpSecurityDescriptor := @aSD; SecMem.bInheritHandle := False; OneInstanceMutex := CreateMutex(@SecMem, False, CSMutexName); if (GetLastError = ERROR_ALREADY_EXISTS)then begin DlgError('Error, Program or service already running!'); Exit; end; if FindCmdLineSwitch('svc', True) or FindCmdLineSwitch('install', True) or FindCmdLineSwitch('uninstall', True) then begin SvcMgr.Application.Initialize; SvcMgr.Application.CreateForm(TSvSvrMain, SvSvrMain); SvcMgr.Application.Run; end else begin Forms.Application.Initialize; Forms.Application.CreateForm(TFmFmMain, FmMain); Forms.Application.Run; end; end.
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program FleetReportSvr;uses
SvcMgr,
Forms,
SysUtils,
Windows,
SvrMain in 'SvrMain.pas' {FleetReportService: TService},
AppMain in 'AppMain.pas' {FmFleetReport};{$R *.RES}const
CSMutexName = 'Global\Services_Application_Mutex';
var
OneInstanceMutex: THandle;
SecMem: SECURITY_ATTRIBUTES;
aSD: SECURITY_DESCRIPTOR;
begin
InitializeSecurityDescriptor(@aSD, SECURITY_DESCRIPTOR_REVISION);
SetSecurityDescriptorDacl(@aSD, True, nil, False);
SecMem.nLength := SizeOf(SECURITY_ATTRIBUTES);
SecMem.lpSecurityDescriptor := @aSD;
SecMem.bInheritHandle := False;
OneInstanceMutex := CreateMutex(@SecMem, False, CSMutexName);
if (GetLastError = ERROR_ALREADY_EXISTS)then
begin
DlgError('Error, Program or service already running!');
Exit;
end;
if FindCmdLineSwitch('svc', True) or
FindCmdLineSwitch('install', True) or
FindCmdLineSwitch('uninstall', True) then
begin
SvcMgr.Application.Initialize;
SvcMgr.Application.CreateForm(TSvSvrMain, SvSvrMain);
SvcMgr.Application.Run;
end
else
begin
Forms.Application.Initialize;
Forms.Application.CreateForm(TFmFmMain, FmMain);
Forms.Application.Run;
end;
end.