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AvSetMmMaxThreadCharacteristicsA

関数

複数タスク中で最も要求の高いMM特性をスレッドに設定する(ANSI版)。

DLLAVRT.dll文字セットANSI (-A)呼出規約winapiSetLastErrorあり対応OSWindows Vista 以降

シグネチャ

// AVRT.dll  (ANSI / -A)
#include <windows.h>

AVRT_TASK_HANDLE AvSetMmMaxThreadCharacteristicsA(
    LPCSTR FirstTask,
    LPCSTR SecondTask,
    DWORD* TaskIndex
);

パラメーター

名前	型	方向
FirstTask	LPCSTR	in
SecondTask	LPCSTR	in
TaskIndex	DWORD*	inout

戻り値の型: AVRT_TASK_HANDLE

各言語での呼び出し定義

// AVRT.dll  (ANSI / -A)
#include <windows.h>

AVRT_TASK_HANDLE AvSetMmMaxThreadCharacteristicsA(
    LPCSTR FirstTask,
    LPCSTR SecondTask,
    DWORD* TaskIndex
);

[DllImport("AVRT.dll", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
static extern AVRT_TASK_HANDLE AvSetMmMaxThreadCharacteristicsA(
    [MarshalAs(UnmanagedType.LPStr)] string FirstTask,   // LPCSTR
    [MarshalAs(UnmanagedType.LPStr)] string SecondTask,   // LPCSTR
    ref uint TaskIndex   // DWORD* in/out
);

<DllImport("AVRT.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function AvSetMmMaxThreadCharacteristicsA(
    <MarshalAs(UnmanagedType.LPStr)> FirstTask As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> SecondTask As String,   ' LPCSTR
    ByRef TaskIndex As UInteger   ' DWORD* in/out
) As AVRT_TASK_HANDLE
End Function

' FirstTask : LPCSTR
' SecondTask : LPCSTR
' TaskIndex : DWORD* in/out
Declare PtrSafe Function AvSetMmMaxThreadCharacteristicsA Lib "avrt" ( _
    ByVal FirstTask As String, _
    ByVal SecondTask As String, _
    ByRef TaskIndex As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

AvSetMmMaxThreadCharacteristicsA = ctypes.windll.avrt.AvSetMmMaxThreadCharacteristicsA
AvSetMmMaxThreadCharacteristicsA.restype = ctypes.c_void_p
AvSetMmMaxThreadCharacteristicsA.argtypes = [
    wintypes.LPCSTR,  # FirstTask : LPCSTR
    wintypes.LPCSTR,  # SecondTask : LPCSTR
    ctypes.POINTER(wintypes.DWORD),  # TaskIndex : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('AVRT.dll')
AvSetMmMaxThreadCharacteristicsA = Fiddle::Function.new(
  lib['AvSetMmMaxThreadCharacteristicsA'],
  [
    Fiddle::TYPE_VOIDP,  # FirstTask : LPCSTR
    Fiddle::TYPE_VOIDP,  # SecondTask : LPCSTR
    Fiddle::TYPE_VOIDP,  # TaskIndex : DWORD* in/out
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "avrt")]
extern "system" {
    fn AvSetMmMaxThreadCharacteristicsA(
        FirstTask: *const u8,  // LPCSTR
        SecondTask: *const u8,  // LPCSTR
        TaskIndex: *mut u32  // DWORD* in/out
    ) -> AVRT_TASK_HANDLE;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("AVRT.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern AVRT_TASK_HANDLE AvSetMmMaxThreadCharacteristicsA([MarshalAs(UnmanagedType.LPStr)] string FirstTask, [MarshalAs(UnmanagedType.LPStr)] string SecondTask, ref uint TaskIndex);
"@
$api = Add-Type -MemberDefinition $sig -Name 'AVRT_AvSetMmMaxThreadCharacteristicsA' -Namespace Win32 -PassThru
# $api::AvSetMmMaxThreadCharacteristicsA(FirstTask, SecondTask, TaskIndex)

#uselib "AVRT.dll"
#func global AvSetMmMaxThreadCharacteristicsA "AvSetMmMaxThreadCharacteristicsA" sptr, sptr, sptr
; AvSetMmMaxThreadCharacteristicsA FirstTask, SecondTask, varptr(TaskIndex)   ; 戻り値は stat
; FirstTask : LPCSTR -> "sptr"
; SecondTask : LPCSTR -> "sptr"
; TaskIndex : DWORD* in/out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "AVRT.dll"
#cfunc global AvSetMmMaxThreadCharacteristicsA "AvSetMmMaxThreadCharacteristicsA" str, str, var
; res = AvSetMmMaxThreadCharacteristicsA(FirstTask, SecondTask, TaskIndex)
; FirstTask : LPCSTR -> "str"
; SecondTask : LPCSTR -> "str"
; TaskIndex : DWORD* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "AVRT.dll"
#cfunc global AvSetMmMaxThreadCharacteristicsA "AvSetMmMaxThreadCharacteristicsA" str, str, sptr
; res = AvSetMmMaxThreadCharacteristicsA(FirstTask, SecondTask, varptr(TaskIndex))
; FirstTask : LPCSTR -> "str"
; SecondTask : LPCSTR -> "str"
; TaskIndex : DWORD* in/out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; AVRT_TASK_HANDLE AvSetMmMaxThreadCharacteristicsA(LPCSTR FirstTask, LPCSTR SecondTask, DWORD* TaskIndex)
#uselib "AVRT.dll"
#cfunc global AvSetMmMaxThreadCharacteristicsA "AvSetMmMaxThreadCharacteristicsA" str, str, var
; res = AvSetMmMaxThreadCharacteristicsA(FirstTask, SecondTask, TaskIndex)
; FirstTask : LPCSTR -> "str"
; SecondTask : LPCSTR -> "str"
; TaskIndex : DWORD* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; AVRT_TASK_HANDLE AvSetMmMaxThreadCharacteristicsA(LPCSTR FirstTask, LPCSTR SecondTask, DWORD* TaskIndex)
#uselib "AVRT.dll"
#cfunc global AvSetMmMaxThreadCharacteristicsA "AvSetMmMaxThreadCharacteristicsA" str, str, intptr
; res = AvSetMmMaxThreadCharacteristicsA(FirstTask, SecondTask, varptr(TaskIndex))
; FirstTask : LPCSTR -> "str"
; SecondTask : LPCSTR -> "str"
; TaskIndex : DWORD* in/out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	avrt = windows.NewLazySystemDLL("AVRT.dll")
	procAvSetMmMaxThreadCharacteristicsA = avrt.NewProc("AvSetMmMaxThreadCharacteristicsA")
)

// FirstTask (LPCSTR), SecondTask (LPCSTR), TaskIndex (DWORD* in/out)
r1, _, err := procAvSetMmMaxThreadCharacteristicsA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(FirstTask))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(SecondTask))),
	uintptr(TaskIndex),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // AVRT_TASK_HANDLE

function AvSetMmMaxThreadCharacteristicsA(
  FirstTask: PAnsiChar;   // LPCSTR
  SecondTask: PAnsiChar;   // LPCSTR
  TaskIndex: Pointer   // DWORD* in/out
): AVRT_TASK_HANDLE; stdcall;
  external 'AVRT.dll' name 'AvSetMmMaxThreadCharacteristicsA';

result := DllCall("AVRT\AvSetMmMaxThreadCharacteristicsA"
    , "AStr", FirstTask   ; LPCSTR
    , "AStr", SecondTask   ; LPCSTR
    , "Ptr", TaskIndex   ; DWORD* in/out
    , "Ptr")   ; return: AVRT_TASK_HANDLE

●AvSetMmMaxThreadCharacteristicsA(FirstTask, SecondTask, TaskIndex) = DLL("AVRT.dll", "void* AvSetMmMaxThreadCharacteristicsA(char*, char*, void*)")
# 呼び出し: AvSetMmMaxThreadCharacteristicsA(FirstTask, SecondTask, TaskIndex)
# FirstTask : LPCSTR -> "char*"
# SecondTask : LPCSTR -> "char*"
# TaskIndex : DWORD* in/out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。