public static PdhStatus GetRawValue(
this PdhCounter counter,
out PDH_RAW_COUNTER value)
=> PdhExports.PdhGetRawCounterValue(
counter,
out _,
out value);
public static PdhStatus GetFormattedValue(
this PdhCounter counter,
out PDH_FMT_COUNTERVALUE value)
=> PdhExports.PdhGetFormattedCounterValue(
counter,
DefaultFmt,
out _,
out value);
public static unsafe int EstimateFormattedCounterArraySize(this PdhCounter counter)
{
var size = 0;
var status = Pdh.PdhGetFormattedCounterArray(counter, DefaultFmt, ref size, out _, null);
if (status != PdhStatus.PDH_CSTATUS_VALID_DATA && status != PdhStatus.PDH_MORE_DATA)
{
FailWithError(PdhStatus.PDH_MORE_DATA, nameof(Pdh.PdhGetFormattedCounterArray));
}
return(size);
}
public static unsafe int EstimateRawCounterArraySize(this PdhCounter counter)
{
var size = 0;
PdhExports
.PdhGetRawCounterArray(counter, ref size, out _, null)
.EnsureStatus(
PdhStatus.PDH_MORE_DATA,
nameof(PdhExports.PdhGetRawCounterArray));
return(size);
}
public static unsafe int EstimateFormattedCounterArraySize(this PdhCounter counter)
{
var size = 0;
PdhExports
.PdhGetFormattedCounterArray(counter, DefaultFmt, ref size, out _, null)
.EnsureStatus(
PdhStatus.PDH_CSTATUS_VALID_DATA,
PdhStatus.PDH_MORE_DATA,
nameof(PdhExports.PdhGetRawCounterArray));
return(size);
}
public static extern PdhStatus PdhCalculateCounterFromRawValue(
PdhCounter hCounter, PdhFmt dwFormat,
ref PDH_RAW_COUNTER rawValue1,
ref PDH_RAW_COUNTER rawValue2,
out PDH_FMT_COUNTERVALUE fmtValue);
public static extern PdhStatus PdhGetRawCounterValue(PdhCounter counter, out int lpdwType,
out PDH_RAW_COUNTER pValue);
public static extern unsafe PdhStatus PdhGetFormattedCounterArray(
PdhCounter counter,
PdhFmt dwFormat,
ref int bufferSize,
out int itemCount, PDH_FMT_COUNTERVALUE_ITEM *buffer);
public static extern PdhStatus PdhGetFormattedCounterValue(PdhCounter counter, PdhFmt dwFormat,
out int lpdwType, out PDH_FMT_COUNTERVALUE pValue);
public static extern unsafe PdhStatus PdhGetRawCounterArray(PdhCounter counter, ref int bufferSize,
out int itemCount, PDH_RAW_COUNTER_ITEM *buffer);
public static extern PdhStatus PdhAddEnglishCounter(PdhQuery query, string path, IntPtr userData,
out PdhCounter counter);
public static unsafe PdhStatus GetFormattedCounterArray(
this PdhCounter counter,
ref int bufferSize,
out int itemCount,
PDH_FMT_COUNTERVALUE_ITEM *buffer)
=> PdhExports.PdhGetFormattedCounterArray(counter, DefaultFmt, ref bufferSize, out itemCount, buffer);
public static unsafe PdhStatus GetRawCounterArray(
this PdhCounter counter,
ref int bufferSize,
out int itemCount,
PDH_RAW_COUNTER_ITEM *buffer)
=> PdhExports.PdhGetRawCounterArray(counter, ref bufferSize, out itemCount, buffer);
private void Init()
{
Pdh.PdhOpenQuery(null, IntPtr.Zero, out pdhQuery).EnsureSuccess(nameof(Pdh.PdhOpenQuery));
pdhCounter = pdhQuery.AddCounter(path);
}