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Search Results for "QueryPerformanceCounter" in [All]

kernel32

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This function is best suited for high-resolution time-of-day measurements, or time stamps that are synchronized to UTC. For high-resolution interval measurements, use QueryPerformanceCounter or KeQueryPerformanceCounter. For more info about acquiring high-resolution time stamps, see Acquiring high-resolution time stamps.

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Summary
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static extern bool QueryPerformanceCounter(out long lpPerformanceCount);

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Shared Function QueryPerformanceCounter(ByRef lpPerformanceCount As Long) As Boolean

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extern bool QueryPerformanceCounter(long *lpPerformanceCount);

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static extern bool QueryPerformanceCounter(out long lpPerformanceCount);

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    Private Shared Function QueryPerformanceCounter(ByRef lpPerformanceCount As Long) As Boolean

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    QueryPerformanceCounter(startTime)

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    QueryPerformanceCounter(endTime)

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    private static extern bool QueryPerformanceCounter(out long lpPerformanceCount);

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        QueryPerformanceCounter(out startTime);

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        QueryPerformanceCounter(out endTime);

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Documentation
QueryPerformanceCounter on MSDN, [SuppressUnmanagedCodeSecurityAttribute] on MSDN

ntdll

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    SystemQueryPerformanceCounterInformation          = 0x7C,

coredll

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public static extern int QueryPerformanceCounter(ref long lpPerformanceCount);

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Public Shared Function QueryPerformanceCounter( _

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Documentation
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[[DllImport(COREDLL, EntryPoint = "QueryPerformanceCounter", SetLastError = true)]

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public static extern bool QueryPerformanceCounter(ref long lPerformanceCounter);

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Declare Function QueryPerformanceCounter Lib "coredll.dll" (TODO) As TODO

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Documentation
[QueryPerformanceCounter] on MSDN

Structures

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Member qpcVBlank here is UInt64, this is very strange since it represents a QPC(QueryPerformanceCounter) value which itself is Int64.


 
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