GetProcessWorkingSetSizeEx function

Retrieves the minimum and maximum working set sizes of the specified process.

Syntax

BOOL GetProcessWorkingSetSizeEx(
  HANDLE  hProcess,
  PSIZE_T lpMinimumWorkingSetSize,
  PSIZE_T lpMaximumWorkingSetSize,
  PDWORD  Flags
);

Parameters

hProcess

A handle to the process whose working set sizes will be obtained. The handle must have the PROCESS_QUERY_INFORMATION or PROCESS_QUERY_LIMITED_INFORMATION access right. For more information, see Process Security and Access Rights.

Windows Server 2003:  The handle must have the PROCESS_QUERY_INFORMATION access right.

lpMinimumWorkingSetSize

A pointer to a variable that receives the minimum working set size of the specified process, in bytes. The virtual memory manager attempts to keep at least this much memory resident in the process whenever the process is active.

lpMaximumWorkingSetSize

A pointer to a variable that receives the maximum working set size of the specified process, in bytes. The virtual memory manager attempts to keep no more than this much memory resident in the process whenever the process is active when memory is in short supply.

Flags

The flags that control the enforcement of the minimum and maximum working set sizes.

Value Meaning
QUOTA_LIMITS_HARDWS_MIN_DISABLE
0x00000002
The working set may fall below the minimum working set limit if memory demands are high.
QUOTA_LIMITS_HARDWS_MIN_ENABLE
0x00000001
The working set will not fall below the minimum working set limit.
QUOTA_LIMITS_HARDWS_MAX_DISABLE
0x00000008
The working set may exceed the maximum working set limit if there is abundant memory.
QUOTA_LIMITS_HARDWS_MAX_ENABLE
0x00000004
The working set will not exceed the maximum working set limit.

Return Value

None

Remarks

The "working set" of a process is the set of memory pages currently visible to the process in physical RAM memory. These pages are resident and available for an application to use without triggering a page fault. The minimum and maximum working set sizes affect the virtual memory paging behavior of a process.

Requirements

   
Minimum supported client Windows Vista [desktop apps | UWP apps]
Minimum supported server Windows Server 2003 [desktop apps | UWP apps]
Target Platform Windows
Header memoryapi.h (include Windows Vista, Windows 7, Windows Server 2008 Windows Server 2008 R2, Windows.h)
Library Kernel32.lib
DLL Kernel32.dll

See Also

Process Working Set

Processes

SetProcessWorkingSetSizeEx