windows-nt/Source/XPSP1/NT/sdktools/pdh/tests/showperflib/perfselection.cpp
2020-09-26 16:20:57 +08:00

116 lines
2.7 KiB
C++

// PerfSelection.cpp : implementation file
//
#include "stdafx.h"
#include "ShowPerfLib.h"
#include "PerfSelection.h"
#include "ntreg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CPerfSelection dialog
CPerfSelection::CPerfSelection(CWnd* pParent /*=NULL*/)
: CDialog(CPerfSelection::IDD, pParent)
{
//{{AFX_DATA_INIT(CPerfSelection)
m_strService = _T("");
//}}AFX_DATA_INIT
}
void CPerfSelection::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CPerfSelection)
DDX_Control(pDX, IDC_SERVICE, m_wndService);
// DDX_Control(pDX, IDC_PERFLIST, m_wndPerfList);
DDX_Text(pDX, IDC_SERVICE, m_strService);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CPerfSelection, CDialog)
//{{AFX_MSG_MAP(CPerfSelection)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CPerfSelection message handlers
BOOL CPerfSelection::OnInitDialog()
{
CDialog::OnInitDialog();
// TODO: Add extra initialization here
InitList();
m_wndService.SetFocus();
return FALSE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}
void CPerfSelection::InitList()
{
CNTRegistry Reg;
WCHAR wszServiceKey[512],
wszPerformanceKey[512];
if ( CNTRegistry::no_error == Reg.Open( HKEY_LOCAL_MACHINE, L"SYSTEM\\CurrentControlSet\\Services" ) )
{
DWORD dwIndex = 0;
// Iterate through the services list
// =================================
DWORD dwBuffSize = 0;
WCHAR* wcsServiceName = NULL;
long lError = CNTRegistry::no_error;
while ( CNTRegistry::no_error == lError )
{
// For each service name, we will check for a performance
// key and if it exists, we will process the library
// ======================================================
lError = Reg.Enum( dwIndex, &wcsServiceName , dwBuffSize );
if ( CNTRegistry::no_error == lError )
{
// Create the perfomance key path
// ==============================
swprintf(wszServiceKey, L"SYSTEM\\CurrentControlSet\\Services\\%s", wcsServiceName);
swprintf(wszPerformanceKey, L"%s\\Performance", wszServiceKey);
CNTRegistry RegSubKey;
// Atempt to open the performance registry key for the service
// ===========================================================
if ( CNTRegistry::no_error == RegSubKey.Open( HKEY_LOCAL_MACHINE, wszPerformanceKey ) )
{
CString str(wcsServiceName);
m_wndPerfList.InsertItem( 1, str );
}
dwIndex++;
}
}
}
}
void CPerfSelection::OnOK()
{
// TODO: Add extra validation here
CDialog::OnOK();
}