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GetProcessInformation function

Retrieves information about the specified process.

Syntax


 BOOL  GetProcessInformation(
  _In_  HANDLE hProcess,
  _In_  PROCESS_INFORMATION_CLASS ProcessInformationClass,
  _Out_writes_bytes_ ProcessInformation,
  _In_  DWORD ProcessInformationSize
);

Parameters

hProcess [in]

A handle to the process. This handle must have the PROCESS_SET_INFORMATION access right. For more information, see Process Security and Access Rights.

ProcessInformationClass [in]

The class of information to retrieve. The only supported value is ProcessMemoryPriority.

ProcessInformation

Pointer to a structure to receive the type of information specified by the ProcessInformationClass parameter.

If the ProcessInformationClass parameter is ProcessMemoryPriority, this parameter must point to a MEMORY_PRIORITY_INFORMATION structure.

ProcessInformationSize [in]

The size in bytes of the structure specified by the ProcessInformation parameter.

If the ProcessInformationClass parameter is ProcessMemoryPriority, this parameter must be sizeof(MEMORY_PRIORITY_INFORMATION).

Return value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Examples

    DWORD ErrorCode;
    BOOL Success;
    MEMORY_PRIORITY_INFORMATION MemPrio;

    //
    // Query process memory priority.
    //

    Success = GetProcessInformation(GetCurrentProcess(),
                                    ProcessMemoryPriority,
                                    &MemPrio,
                                    sizeof(MemPrio));

    if (!Success) {
        ErrorCode = GetLastError();
        fprintf(stderr, "Get process memory priority failed: %d\n", ErrorCode);
    } else {
        printf("Current process memory priority is %d.\n", MemPrio.MemoryPriority);
    }


Requirements

Minimum supported client

Windows 8 [desktop apps only]

Minimum supported server

Windows Server 2012 [desktop apps only]

Header

WinBase.h (include Windows.h)

Library

Kernel32.lib

DLL

Kernel32.dll

See also

GetThreadInformation
SetProcessInformation

 

 

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