PdhUpdateLogA

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

DWORD PdhUpdateLogA(
    PDH_HLOG hLog,
    LPCSTR szUserString   // optional
);

<DllImport("pdh.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function PdhUpdateLogA(
    hLog As IntPtr,   ' PDH_HLOG
    <MarshalAs(UnmanagedType.LPStr)> szUserString As String   ' LPCSTR optional
) As UInteger
End Function

' hLog : PDH_HLOG
' szUserString : LPCSTR optional
Declare PtrSafe Function PdhUpdateLogA Lib "pdh" ( _
    ByVal hLog As LongPtr, _
    ByVal szUserString As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PdhUpdateLogA = ctypes.windll.pdh.PdhUpdateLogA
PdhUpdateLogA.restype = wintypes.DWORD
PdhUpdateLogA.argtypes = [
    wintypes.HANDLE,  # hLog : PDH_HLOG
    wintypes.LPCSTR,  # szUserString : LPCSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('pdh.dll')
PdhUpdateLogA = Fiddle::Function.new(
  lib['PdhUpdateLogA'],
  [
    Fiddle::TYPE_VOIDP,  # hLog : PDH_HLOG
    Fiddle::TYPE_VOIDP,  # szUserString : LPCSTR optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "pdh")]
extern "system" {
    fn PdhUpdateLogA(
        hLog: *mut core::ffi::c_void,  // PDH_HLOG
        szUserString: *const u8  // LPCSTR optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("pdh.dll", CharSet = CharSet.Ansi)]
public static extern uint PdhUpdateLogA(IntPtr hLog, [MarshalAs(UnmanagedType.LPStr)] string szUserString);
"@
$api = Add-Type -MemberDefinition $sig -Name 'pdh_PdhUpdateLogA' -Namespace Win32 -PassThru
# $api::PdhUpdateLogA(hLog, szUserString)

#uselib "pdh.dll"
#func global PdhUpdateLogA "PdhUpdateLogA" sptr, sptr
; PdhUpdateLogA hLog, szUserString   ; 戻り値は stat
; hLog : PDH_HLOG -> "sptr"
; szUserString : LPCSTR optional -> "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 PdhUpdateLogA "PdhUpdateLogA" sptr, str
; res = PdhUpdateLogA(hLog, szUserString)
; hLog : PDH_HLOG -> "sptr"
; szUserString : LPCSTR optional -> "str"

; DWORD PdhUpdateLogA(PDH_HLOG hLog, LPCSTR szUserString)
#uselib "pdh.dll"
#cfunc global PdhUpdateLogA "PdhUpdateLogA" intptr, str
; res = PdhUpdateLogA(hLog, szUserString)
; hLog : PDH_HLOG -> "intptr"
; szUserString : LPCSTR optional -> "str"

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

var (
	pdh = windows.NewLazySystemDLL("pdh.dll")
	procPdhUpdateLogA = pdh.NewProc("PdhUpdateLogA")
)

// hLog (PDH_HLOG), szUserString (LPCSTR optional)
r1, _, err := procPdhUpdateLogA.Call(
	uintptr(hLog),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szUserString))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function PdhUpdateLogA(
  hLog: THandle;   // PDH_HLOG
  szUserString: PAnsiChar   // LPCSTR optional
): DWORD; stdcall;
  external 'pdh.dll' name 'PdhUpdateLogA';

result := DllCall("pdh\PdhUpdateLogA"
    , "Ptr", hLog   ; PDH_HLOG
    , "AStr", szUserString   ; LPCSTR optional
    , "UInt")   ; return: DWORD

●PdhUpdateLogA(hLog, szUserString) = DLL("pdh.dll", "dword PdhUpdateLogA(void*, char*)")
# 呼び出し: PdhUpdateLogA(hLog, szUserString)
# hLog : PDH_HLOG -> "void*"
# szUserString : LPCSTR optional -> "char*"
# 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)。