PdhAddCounterA

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

DWORD PdhAddCounterA(
    PDH_HQUERY hQuery,
    LPCSTR szFullCounterPath,
    UINT_PTR dwUserData,
    PDH_HCOUNTER* phCounter
);

<DllImport("pdh.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function PdhAddCounterA(
    hQuery As IntPtr,   ' PDH_HQUERY
    <MarshalAs(UnmanagedType.LPStr)> szFullCounterPath As String,   ' LPCSTR
    dwUserData As UIntPtr,   ' UINT_PTR
    phCounter As IntPtr   ' PDH_HCOUNTER* out
) As UInteger
End Function

' hQuery : PDH_HQUERY
' szFullCounterPath : LPCSTR
' dwUserData : UINT_PTR
' phCounter : PDH_HCOUNTER* out
Declare PtrSafe Function PdhAddCounterA Lib "pdh" ( _
    ByVal hQuery As LongPtr, _
    ByVal szFullCounterPath As String, _
    ByVal dwUserData As LongPtr, _
    ByVal phCounter As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PdhAddCounterA = ctypes.windll.pdh.PdhAddCounterA
PdhAddCounterA.restype = wintypes.DWORD
PdhAddCounterA.argtypes = [
    wintypes.HANDLE,  # hQuery : PDH_HQUERY
    wintypes.LPCSTR,  # szFullCounterPath : LPCSTR
    ctypes.c_size_t,  # dwUserData : UINT_PTR
    ctypes.c_void_p,  # phCounter : PDH_HCOUNTER* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('pdh.dll')
PdhAddCounterA = Fiddle::Function.new(
  lib['PdhAddCounterA'],
  [
    Fiddle::TYPE_VOIDP,  # hQuery : PDH_HQUERY
    Fiddle::TYPE_VOIDP,  # szFullCounterPath : LPCSTR
    Fiddle::TYPE_UINTPTR_T,  # dwUserData : UINT_PTR
    Fiddle::TYPE_VOIDP,  # phCounter : PDH_HCOUNTER* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "pdh")]
extern "system" {
    fn PdhAddCounterA(
        hQuery: *mut core::ffi::c_void,  // PDH_HQUERY
        szFullCounterPath: *const u8,  // LPCSTR
        dwUserData: usize,  // UINT_PTR
        phCounter: *mut *mut core::ffi::c_void  // PDH_HCOUNTER* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("pdh.dll", CharSet = CharSet.Ansi)]
public static extern uint PdhAddCounterA(IntPtr hQuery, [MarshalAs(UnmanagedType.LPStr)] string szFullCounterPath, UIntPtr dwUserData, IntPtr phCounter);
"@
$api = Add-Type -MemberDefinition $sig -Name 'pdh_PdhAddCounterA' -Namespace Win32 -PassThru
# $api::PdhAddCounterA(hQuery, szFullCounterPath, dwUserData, phCounter)

#uselib "pdh.dll"
#func global PdhAddCounterA "PdhAddCounterA" sptr, sptr, sptr, sptr
; PdhAddCounterA hQuery, szFullCounterPath, dwUserData, phCounter   ; 戻り値は stat
; hQuery : PDH_HQUERY -> "sptr"
; szFullCounterPath : LPCSTR -> "sptr"
; dwUserData : UINT_PTR -> "sptr"
; phCounter : PDH_HCOUNTER* 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。

#uselib "pdh.dll"
#cfunc global PdhAddCounterA "PdhAddCounterA" sptr, str, sptr, sptr
; res = PdhAddCounterA(hQuery, szFullCounterPath, dwUserData, phCounter)
; hQuery : PDH_HQUERY -> "sptr"
; szFullCounterPath : LPCSTR -> "str"
; dwUserData : UINT_PTR -> "sptr"
; phCounter : PDH_HCOUNTER* out -> "sptr"

; DWORD PdhAddCounterA(PDH_HQUERY hQuery, LPCSTR szFullCounterPath, UINT_PTR dwUserData, PDH_HCOUNTER* phCounter)
#uselib "pdh.dll"
#cfunc global PdhAddCounterA "PdhAddCounterA" intptr, str, intptr, intptr
; res = PdhAddCounterA(hQuery, szFullCounterPath, dwUserData, phCounter)
; hQuery : PDH_HQUERY -> "intptr"
; szFullCounterPath : LPCSTR -> "str"
; dwUserData : UINT_PTR -> "intptr"
; phCounter : PDH_HCOUNTER* out -> "intptr"

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

var (
	pdh = windows.NewLazySystemDLL("pdh.dll")
	procPdhAddCounterA = pdh.NewProc("PdhAddCounterA")
)

// hQuery (PDH_HQUERY), szFullCounterPath (LPCSTR), dwUserData (UINT_PTR), phCounter (PDH_HCOUNTER* out)
r1, _, err := procPdhAddCounterA.Call(
	uintptr(hQuery),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szFullCounterPath))),
	uintptr(dwUserData),
	uintptr(phCounter),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function PdhAddCounterA(
  hQuery: THandle;   // PDH_HQUERY
  szFullCounterPath: PAnsiChar;   // LPCSTR
  dwUserData: NativeUInt;   // UINT_PTR
  phCounter: Pointer   // PDH_HCOUNTER* out
): DWORD; stdcall;
  external 'pdh.dll' name 'PdhAddCounterA';

result := DllCall("pdh\PdhAddCounterA"
    , "Ptr", hQuery   ; PDH_HQUERY
    , "AStr", szFullCounterPath   ; LPCSTR
    , "UPtr", dwUserData   ; UINT_PTR
    , "Ptr", phCounter   ; PDH_HCOUNTER* out
    , "UInt")   ; return: DWORD

●PdhAddCounterA(hQuery, szFullCounterPath, dwUserData, phCounter) = DLL("pdh.dll", "dword PdhAddCounterA(void*, char*, int, void*)")
# 呼び出し: PdhAddCounterA(hQuery, szFullCounterPath, dwUserData, phCounter)
# hQuery : PDH_HQUERY -> "void*"
# szFullCounterPath : LPCSTR -> "char*"
# dwUserData : UINT_PTR -> "int"
# phCounter : PDH_HCOUNTER* 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)。