PdhGetDataSourceTimeRangeW

// pdh.dll  (Unicode / -W)
#include <windows.h>

DWORD PdhGetDataSourceTimeRangeW(
    LPCWSTR szDataSource,   // optional
    DWORD* pdwNumEntries,
    PDH_TIME_INFO* pInfo,
    DWORD* pdwBufferSize
);

<DllImport("pdh.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function PdhGetDataSourceTimeRangeW(
    <MarshalAs(UnmanagedType.LPWStr)> szDataSource As String,   ' LPCWSTR optional
    <Out> ByRef pdwNumEntries As UInteger,   ' DWORD* out
    pInfo As IntPtr,   ' PDH_TIME_INFO* out
    ByRef pdwBufferSize As UInteger   ' DWORD* in/out
) As UInteger
End Function

' szDataSource : LPCWSTR optional
' pdwNumEntries : DWORD* out
' pInfo : PDH_TIME_INFO* out
' pdwBufferSize : DWORD* in/out
Declare PtrSafe Function PdhGetDataSourceTimeRangeW Lib "pdh" ( _
    ByVal szDataSource As LongPtr, _
    ByRef pdwNumEntries As Long, _
    ByVal pInfo As LongPtr, _
    ByRef pdwBufferSize As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PdhGetDataSourceTimeRangeW = ctypes.windll.pdh.PdhGetDataSourceTimeRangeW
PdhGetDataSourceTimeRangeW.restype = wintypes.DWORD
PdhGetDataSourceTimeRangeW.argtypes = [
    wintypes.LPCWSTR,  # szDataSource : LPCWSTR optional
    ctypes.POINTER(wintypes.DWORD),  # pdwNumEntries : DWORD* out
    ctypes.c_void_p,  # pInfo : PDH_TIME_INFO* out
    ctypes.POINTER(wintypes.DWORD),  # pdwBufferSize : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('pdh.dll')
PdhGetDataSourceTimeRangeW = Fiddle::Function.new(
  lib['PdhGetDataSourceTimeRangeW'],
  [
    Fiddle::TYPE_VOIDP,  # szDataSource : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pdwNumEntries : DWORD* out
    Fiddle::TYPE_VOIDP,  # pInfo : PDH_TIME_INFO* out
    Fiddle::TYPE_VOIDP,  # pdwBufferSize : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "pdh")]
extern "system" {
    fn PdhGetDataSourceTimeRangeW(
        szDataSource: *const u16,  // LPCWSTR optional
        pdwNumEntries: *mut u32,  // DWORD* out
        pInfo: *mut PDH_TIME_INFO,  // PDH_TIME_INFO* out
        pdwBufferSize: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("pdh.dll", CharSet = CharSet.Unicode)]
public static extern uint PdhGetDataSourceTimeRangeW([MarshalAs(UnmanagedType.LPWStr)] string szDataSource, out uint pdwNumEntries, IntPtr pInfo, ref uint pdwBufferSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'pdh_PdhGetDataSourceTimeRangeW' -Namespace Win32 -PassThru
# $api::PdhGetDataSourceTimeRangeW(szDataSource, pdwNumEntries, pInfo, pdwBufferSize)

#uselib "pdh.dll"
#func global PdhGetDataSourceTimeRangeW "PdhGetDataSourceTimeRangeW" wptr, wptr, wptr, wptr
; PdhGetDataSourceTimeRangeW szDataSource, varptr(pdwNumEntries), varptr(pInfo), varptr(pdwBufferSize)   ; 戻り値は stat
; szDataSource : LPCWSTR optional -> "wptr"
; pdwNumEntries : DWORD* out -> "wptr"
; pInfo : PDH_TIME_INFO* out -> "wptr"
; pdwBufferSize : DWORD* in/out -> "wptr"
; ※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。

#uselib "pdh.dll"
#cfunc global PdhGetDataSourceTimeRangeW "PdhGetDataSourceTimeRangeW" wstr, var, var, var
; res = PdhGetDataSourceTimeRangeW(szDataSource, pdwNumEntries, pInfo, pdwBufferSize)
; szDataSource : LPCWSTR optional -> "wstr"
; pdwNumEntries : DWORD* out -> "var"
; pInfo : PDH_TIME_INFO* out -> "var"
; pdwBufferSize : 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。

; DWORD PdhGetDataSourceTimeRangeW(LPCWSTR szDataSource, DWORD* pdwNumEntries, PDH_TIME_INFO* pInfo, DWORD* pdwBufferSize)
#uselib "pdh.dll"
#cfunc global PdhGetDataSourceTimeRangeW "PdhGetDataSourceTimeRangeW" wstr, var, var, var
; res = PdhGetDataSourceTimeRangeW(szDataSource, pdwNumEntries, pInfo, pdwBufferSize)
; szDataSource : LPCWSTR optional -> "wstr"
; pdwNumEntries : DWORD* out -> "var"
; pInfo : PDH_TIME_INFO* out -> "var"
; pdwBufferSize : 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。

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

var (
	pdh = windows.NewLazySystemDLL("pdh.dll")
	procPdhGetDataSourceTimeRangeW = pdh.NewProc("PdhGetDataSourceTimeRangeW")
)

// szDataSource (LPCWSTR optional), pdwNumEntries (DWORD* out), pInfo (PDH_TIME_INFO* out), pdwBufferSize (DWORD* in/out)
r1, _, err := procPdhGetDataSourceTimeRangeW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szDataSource))),
	uintptr(pdwNumEntries),
	uintptr(pInfo),
	uintptr(pdwBufferSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function PdhGetDataSourceTimeRangeW(
  szDataSource: PWideChar;   // LPCWSTR optional
  pdwNumEntries: Pointer;   // DWORD* out
  pInfo: Pointer;   // PDH_TIME_INFO* out
  pdwBufferSize: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'pdh.dll' name 'PdhGetDataSourceTimeRangeW';

result := DllCall("pdh\PdhGetDataSourceTimeRangeW"
    , "WStr", szDataSource   ; LPCWSTR optional
    , "Ptr", pdwNumEntries   ; DWORD* out
    , "Ptr", pInfo   ; PDH_TIME_INFO* out
    , "Ptr", pdwBufferSize   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●PdhGetDataSourceTimeRangeW(szDataSource, pdwNumEntries, pInfo, pdwBufferSize) = DLL("pdh.dll", "dword PdhGetDataSourceTimeRangeW(char*, void*, void*, void*)")
# 呼び出し: PdhGetDataSourceTimeRangeW(szDataSource, pdwNumEntries, pInfo, pdwBufferSize)
# szDataSource : LPCWSTR optional -> "char*"
# pdwNumEntries : DWORD* out -> "void*"
# pInfo : PDH_TIME_INFO* out -> "void*"
# pdwBufferSize : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。