pdh.h

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#define PDH_FMT_RAW     ((DWORD)0x00000010)
#define PDH_FMT_ANSI    ((DWORD)0x00000020)
#define PDH_FMT_UNICODE ((DWORD)0x00000040)
#define PDH_FMT_LONG    ((DWORD)0x00000100)
#define PDH_FMT_DOUBLE  ((DWORD)0x00000200)
#define PDH_FMT_LARGE   ((DWORD)0x00000400)
#define PDH_FMT_NOSCALE ((DWORD)0x00001000)
#define PDH_FMT_1000    ((DWORD)0x00002000)
#define PDH_FMT_NODATA  ((DWORD)0x00004000)
#define PDH_FMT_NOCAP100 ((DWORD)0x00008000)

#define PERF_DETAIL_COSTLY   ((DWORD)0x00010000)
#define PERF_DETAIL_STANDARD ((DWORD)0x0000FFFF)

PDH_FUNCTION
PdhGetRawCounterValue (
    IN      HCOUNTER            hCounter,
    IN      LPDWORD             lpdwType,
    IN      PPDH_RAW_COUNTER    pValue
);

PDH_FUNCTION
PdhGetRawCounterArrayA (
    IN      HCOUNTER                hCounter,
    IN      LPDWORD                 lpdwBufferSize,
    IN      LPDWORD                 lpdwItemCount,
    IN      PPDH_RAW_COUNTER_ITEM_A ItemBuffer
);

PDH_FUNCTION
PdhGetRawCounterArrayW (
    IN      HCOUNTER                hCounter,
    IN      LPDWORD                 lpdwBufferSize,
    IN      LPDWORD                 lpdwItemCount,
    IN      PPDH_RAW_COUNTER_ITEM_W ItemBuffer
);

PDH_FUNCTION
PdhCalculateCounterFromRawValue (
    IN      HCOUNTER                hCounter,
    IN      DWORD                   dwFormat,
    IN      PPDH_RAW_COUNTER        rawValue1,
    IN      PPDH_RAW_COUNTER        rawValue2,
    IN      PPDH_FMT_COUNTERVALUE   fmtValue
);

PDH_FUNCTION
PdhComputeCounterStatistics (
    IN      HCOUNTER            hCounter,
    IN      DWORD               dwFormat,
    IN      DWORD               dwFirstEntry,
    IN      DWORD               dwNumEntries,
    IN      PPDH_RAW_COUNTER    lpRawValueArray,
    IN      PPDH_STATISTICS     data
);

PDH_FUNCTION
PdhGetCounterInfoW (
    IN      HCOUNTER            hCounter,
    IN      BOOLEAN             bRetrieveExplainText,
    IN      LPDWORD             pdwBufferSize,
    IN      PPDH_COUNTER_INFO_W lpBuffer
);

PDH_FUNCTION
PdhGetCounterInfoA (
    IN      HCOUNTER            hCounter,
    IN      BOOLEAN             bRetrieveExplainText,
    IN      LPDWORD             pdwBufferSize,
    IN      PPDH_COUNTER_INFO_A lpBuffer
);

#define PDH_MAX_SCALE    (7L)
#define PDH_MIN_SCALE   (-7L)

PDH_FUNCTION
PdhSetCounterScaleFactor (
    IN      HCOUNTER    hCounter,
    IN      LONG        lFactor
);
//
//   Browsing and enumeration functions
//
PDH_FUNCTION
PdhConnectMachineW (
    IN      LPCWSTR  szMachineName
);

PDH_FUNCTION
PdhConnectMachineA (
    IN      LPCSTR  szMachineName
);

PDH_FUNCTION
PdhEnumMachinesW (
    IN      LPCWSTR szDataSource,
    IN      LPWSTR  mszMachineList,
    IN      LPDWORD pcchBufferSize
);

PDH_FUNCTION
PdhEnumMachinesA (
    IN      LPCSTR   szDataSource,
    IN      LPSTR    mszMachineList,
    IN      LPDWORD  pcchBufferSize
);

PDH_FUNCTION
PdhEnumObjectsW (
    IN      LPCWSTR szDataSource,
    IN      LPCWSTR szMachineName,
    IN      LPWSTR  mszObjectList,
    IN      LPDWORD pcchBufferSize,
    IN      DWORD   dwDetailLevel,
    IN      BOOL    bRefresh
);

PDH_FUNCTION
PdhEnumObjectsA (
    IN      LPCSTR  szDataSource,
    IN      LPCSTR  szMachineName,
    IN      LPSTR   mszObjectList,
    IN      LPDWORD pcchBufferSize,
    IN      DWORD   dwDetailLevel,
    IN      BOOL    bRefresh
);

PDH_FUNCTION
PdhEnumObjectItemsW (
    IN      LPCWSTR szDataSource,
    IN      LPCWSTR szMachineName,
    IN      LPCWSTR szObjectName,
    IN      LPWSTR  mszCounterList,
    IN      LPDWORD pcchCounterListLength,
    IN      LPWSTR  mszInstanceList,
    IN      LPDWORD pcchInstanceListLength,
    IN      DWORD   dwDetailLevel,
    IN      DWORD   dwFlags
);

PDH_FUNCTION
PdhEnumObjectItemsA (
    IN      LPCSTR  szDataSource,
    IN      LPCSTR  szMachineName,
    IN      LPCSTR  szObjectName,
    IN      LPSTR   mszCounterList,
    IN      LPDWORD pcchCounterListLength,
    IN      LPSTR   mszInstanceList,
    IN      LPDWORD pcchInstanceListLength,
    IN      DWORD   dwDetailLevel,
    IN      DWORD   dwFlags
);

PDH_FUNCTION
PdhMakeCounterPathW (
    IN      PDH_COUNTER_PATH_ELEMENTS_W *pCounterPathElements,
    IN      LPWSTR                      szFullPathBuffer,
    IN      LPDWORD                     pcchBufferSize,
    IN      DWORD                       dwFlags
);

PDH_FUNCTION
PdhMakeCounterPathA (
    IN      PDH_COUNTER_PATH_ELEMENTS_A *pCounterPathElements,
    IN      LPSTR                       szFullPathBuffer,
    IN      LPDWORD                     pcchBufferSize,
    IN      DWORD                       dwFlags
);

PDH_FUNCTION
PdhParseCounterPathW (
    IN      LPCWSTR                     szFullPathBuffer,
    IN      PDH_COUNTER_PATH_ELEMENTS_W *pCounterPathElements,
    IN      LPDWORD                     pdwBufferSize,
    IN      DWORD                       dwFlags
);

PDH_FUNCTION
PdhParseCounterPathA (
    IN      LPCSTR                      szFullPathBuffer,
    IN      PDH_COUNTER_PATH_ELEMENTS_A *pCounterPathElements,
    IN      LPDWORD                     pdwBufferSize,
    IN      DWORD                       dwFlags
);

#define PDH_PATH_WBEM_RESULT        ((DWORD)0x00000001)
#define PDH_PATH_WBEM_INPUT         ((DWORD)0x00000002)

#define PDH_PATH_LANG_FLAGS(LangId, Flags)  ((DWORD)(((LangId & 0x0000FFFF) << 16) | (Flags & 0x0000FFFF)))

PDH_FUNCTION
PdhParseInstanceNameW (
    IN      LPCWSTR szInstanceString,
    IN      LPWSTR  szInstanceName,
    IN      LPDWORD pcchInstanceNameLength,
    IN      LPWSTR  szParentName,
    IN      LPDWORD pcchParentNameLength,
    IN      LPDWORD lpIndex
);

PDH_FUNCTION
PdhParseInstanceNameA (
    IN      LPCSTR  szInstanceString,
    IN      LPSTR   szInstanceName,
    IN      LPDWORD pcchInstanceNameLength,
    IN      LPSTR   szParentName,
    IN      LPDWORD pcchParentNameLength,
    IN      LPDWORD lpIndex
);

PDH_FUNCTION
PdhValidatePathW (
    IN      LPCWSTR szFullPathBuffer
);

PDH_FUNCTION
PdhValidatePathA (
    IN      LPCSTR  szFullPathBuffer
);

PDH_FUNCTION
PdhGetDefaultPerfObjectW (
    IN      LPCWSTR szDataSource,
    IN      LPCWSTR szMachineName,
    IN      LPWSTR  szDefaultObjectName,
    IN      LPDWORD pcchBufferSize
);

PDH_FUNCTION
PdhGetDefaultPerfObjectA (
    IN      LPCSTR  szDataSource,
    IN      LPCSTR  szMachineName,
    IN      LPSTR   szDefaultObjectName,
    IN      LPDWORD pcchBufferSize
);

PDH_FUNCTION
PdhGetDefaultPerfCounterW (
    IN      LPCWSTR szDataSource,
    IN      LPCWSTR szMachineName,
    IN      LPCWSTR szObjectName,
    IN      LPWSTR  szDefaultCounterName,
    IN      LPDWORD pcchBufferSize
);

PDH_FUNCTION
PdhGetDefaultPerfCounterA (
    IN      LPCSTR  szDataSource,
    IN      LPCSTR  szMachineName,
    IN      LPCSTR  szObjectName,
    IN      LPSTR   szDefaultCounterName,
    IN      LPDWORD pcchBufferSize
);

typedef PDH_STATUS (__stdcall *CounterPathCallBack)(DWORD_PTR);

#if _MSC_VER >= 1200
#pragma warning(push)
#endif
#pragma warning ( disable : 4214 )  // Disable warning messages
typedef struct _BrowseDlgConfig_W {
    // Configuration flags
    DWORD   bIncludeInstanceIndex:1,
            bSingleCounterPerAdd:1,
            bSingleCounterPerDialog:1,
            bLocalCountersOnly:1,
            bWildCardInstances:1,
            bHideDetailBox:1,
            bInitializePath:1,
            bDisableMachineSelection:1,
            bIncludeCostlyObjects:1,
            bReserved:23;

    HWND                hWndOwner;
    LPWSTR              szDataSource;
    LPWSTR              szReturnPathBuffer;
    DWORD               cchReturnPathLength;
    CounterPathCallBack pCallBack;
    DWORD_PTR           dwCallBackArg;
    PDH_STATUS          CallBackStatus;
    DWORD               dwDefaultDetailLevel;
    LPWSTR              szDialogBoxCaption;
} PDH_BROWSE_DLG_CONFIG_W, *PPDH_BROWSE_DLG_CONFIG_W;

typedef struct _BrowseDlgConfig_A {
    // Configuration flags
    DWORD   bIncludeInstanceIndex:1,
            bSingleCounterPerAdd:1,
            bSingleCounterPerDialog:1,
            bLocalCountersOnly:1,
            bWildCardInstances:1,
            bHideDetailBox:1,
            bInitializePath:1,
            bDisableMachineSelection:1,
            bIncludeCostlyObjects:1,
            bReserved:23;

    HWND                hWndOwner;
    LPSTR               szDataSource;
    LPSTR               szReturnPathBuffer;
    DWORD               cchReturnPathLength;
    CounterPathCallBack pCallBack;
    DWORD_PTR           dwCallBackArg;
    PDH_STATUS          CallBackStatus;
    DWORD               dwDefaultDetailLevel;
    LPSTR               szDialogBoxCaption;
} PDH_BROWSE_DLG_CONFIG_A, *PPDH_BROWSE_DLG_CONFIG_A;
#if _MSC_VER >= 1200
#pragma warning(pop)
#else
#pragma warning ( default : 4214 )
#endif

PDH_FUNCTION
PdhBrowseCountersW (
    IN      PPDH_BROWSE_DLG_CONFIG_W    pBrowseDlgData
);

PDH_FUNCTION
PdhBrowseCountersA (
    IN      PPDH_BROWSE_DLG_CONFIG_A    pBrowseDlgData
);

PDH_FUNCTION
PdhExpandCounterPathW (
    IN      LPCWSTR     szWildCardPath,
    IN      LPWSTR      mszExpandedPathList,
    IN      LPDWORD     pcchPathListLength
);

PDH_FUNCTION
PdhExpandCounterPathA (
    IN      LPCSTR      szWildCardPath,
    IN      LPSTR       mszExpandedPathList,
    IN      LPDWORD     pcchPathListLength
);

//
//  v2.0 functions
//
PDH_FUNCTION
PdhLookupPerfNameByIndexW (
    LPCWSTR szMachineName,
    DWORD   dwNameIndex,
    LPWSTR  szNameBuffer,
    LPDWORD pcchNameBufferSize
);

PDH_FUNCTION
PdhLookupPerfNameByIndexA (
    LPCSTR  szMachineName,
    DWORD   dwNameIndex,
    LPSTR   szNameBuffer,
    LPDWORD pcchNameBufferSize
);

PDH_FUNCTION
PdhLookupPerfIndexByNameW (
    LPCWSTR szMachineName,
    LPCWSTR szNameBuffer,
    LPDWORD pdwIndex
);

PDH_FUNCTION
PdhLookupPerfIndexByNameA (
    LPCSTR  szMachineName,
    LPCSTR  szNameBuffer,
    LPDWORD pdwIndex
);

#define     PDH_NOEXPANDCOUNTERS    1
#define     PDH_NOEXPANDINSTANCES   2