program Project2;
{$APPTYPE CONSOLE}
uses
Windows,
WinSvc;
type
SERVICE_DESCRIPTION =
packed record
lpDescription: PWChar;
end;
PSERVICE_DESCRIPTION = ^SERVICE_DESCRIPTION;
function QueryServiceConfig2(hService: THandle; dwInfoLevel: DWORD; lpBuffer: Pointer; cbBufSize: DWORD;
var
pcbBytesNeeded: DWORD): LongBool;
stdcall;
external '
advapi32.dll'
name '
QueryServiceConfig2W';
////////////////////////////////////////////////////////////////////////////////
// Procedure : SysErrorMessage
// Comment : Returns last error as formated string
function SysErrorMessage(ErrorCode: Integer):
string;
var
Len : Integer;
Buffer :
array[0..255]
of Char;
begin
Len := FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
or
FORMAT_MESSAGE_ARGUMENT_ARRAY,
nil, ErrorCode, 0, Buffer,
SizeOf(Buffer),
nil);
while (Len > 0)
and (Buffer[Len - 1]
in [#0..#32, '
.'])
do
Dec(Len);
SetString(Result, Buffer, Len);
end;
function GetServiceDesciption(Computer, Servicename: PWChar): WideString;
var
sc : THandle;
os : THandle;
sd : Boolean;
dwNeeded : DWORD;
Buffer : Pointer;
begin
result := '
';
dwNeeded := 0;
sc := OpenSCManagerW(Computer,
nil, SC_MANAGER_CONNECT);
if sc <> 0
then
begin
os := OpenServiceW(sc, Servicename, SERVICE_QUERY_CONFIG);
if os <> 0
then
begin
sd := QueryServiceConfig2(
os, 1,
nil, 0, dwNeeded);
if (
not sd)
and (GetLastError = ERROR_INSUFFICIENT_BUFFER)
then
begin
GetMem(Buffer, dwNeeded);
sd := QueryServiceConfig2(
os, 1, Buffer, dwNeeded, dwNeeded);
if sd
then
begin
result := PSERVICE_DESCRIPTION(Buffer)^.lpDescription;
end
else
Writeln(SysErrorMessage(GetLastError));
end;
end
else
Writeln(SysErrorMessage(GetLastError));
end
else
Writeln(SysErrorMessage(GetLastError));
end;
var
description : WideString;
begin
description := GetServiceDesciption('
hal9000', '
ClipSrv');
MessageBoxW(0, PWideChar(description), '
Dienstbeschreibung', 0);
end.