FwpmProviderContextGetByKey1

// fwpuclnt.dll
#include <windows.h>

DWORD FwpmProviderContextGetByKey1(
    FWPM_ENGINE_HANDLE engineHandle,
    const GUID* key,
    FWPM_PROVIDER_CONTEXT1** providerContext
);

<DllImport("fwpuclnt.dll", ExactSpelling:=True)>
Public Shared Function FwpmProviderContextGetByKey1(
    engineHandle As FWPM_ENGINE_HANDLE,   ' FWPM_ENGINE_HANDLE
    ByRef key As Guid,   ' GUID*
    providerContext As IntPtr   ' FWPM_PROVIDER_CONTEXT1** out
) As UInteger
End Function

' engineHandle : FWPM_ENGINE_HANDLE
' key : GUID*
' providerContext : FWPM_PROVIDER_CONTEXT1** out
Declare PtrSafe Function FwpmProviderContextGetByKey1 Lib "fwpuclnt" ( _
    ByVal engineHandle As LongPtr, _
    ByVal key As LongPtr, _
    ByVal providerContext 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

FwpmProviderContextGetByKey1 = ctypes.windll.fwpuclnt.FwpmProviderContextGetByKey1
FwpmProviderContextGetByKey1.restype = wintypes.DWORD
FwpmProviderContextGetByKey1.argtypes = [
    FWPM_ENGINE_HANDLE,  # engineHandle : FWPM_ENGINE_HANDLE
    ctypes.c_void_p,  # key : GUID*
    ctypes.c_void_p,  # providerContext : FWPM_PROVIDER_CONTEXT1** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('fwpuclnt.dll')
FwpmProviderContextGetByKey1 = Fiddle::Function.new(
  lib['FwpmProviderContextGetByKey1'],
  [
    Fiddle::TYPE_VOIDP,  # engineHandle : FWPM_ENGINE_HANDLE
    Fiddle::TYPE_VOIDP,  # key : GUID*
    Fiddle::TYPE_VOIDP,  # providerContext : FWPM_PROVIDER_CONTEXT1** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "fwpuclnt")]
extern "system" {
    fn FwpmProviderContextGetByKey1(
        engineHandle: FWPM_ENGINE_HANDLE,  // FWPM_ENGINE_HANDLE
        key: *const GUID,  // GUID*
        providerContext: *mut *mut FWPM_PROVIDER_CONTEXT1  // FWPM_PROVIDER_CONTEXT1** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("fwpuclnt.dll")]
public static extern uint FwpmProviderContextGetByKey1(FWPM_ENGINE_HANDLE engineHandle, ref Guid key, IntPtr providerContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'fwpuclnt_FwpmProviderContextGetByKey1' -Namespace Win32 -PassThru
# $api::FwpmProviderContextGetByKey1(engineHandle, key, providerContext)

#uselib "fwpuclnt.dll"
#func global FwpmProviderContextGetByKey1 "FwpmProviderContextGetByKey1" sptr, sptr, sptr
; FwpmProviderContextGetByKey1 engineHandle, varptr(key), varptr(providerContext)   ; 戻り値は stat
; engineHandle : FWPM_ENGINE_HANDLE -> "sptr"
; key : GUID* -> "sptr"
; providerContext : FWPM_PROVIDER_CONTEXT1** out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "fwpuclnt.dll"
#cfunc global FwpmProviderContextGetByKey1 "FwpmProviderContextGetByKey1" int, var, var
; res = FwpmProviderContextGetByKey1(engineHandle, key, providerContext)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; key : GUID* -> "var"
; providerContext : FWPM_PROVIDER_CONTEXT1** out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 FwpmProviderContextGetByKey1(FWPM_ENGINE_HANDLE engineHandle, GUID* key, FWPM_PROVIDER_CONTEXT1** providerContext)
#uselib "fwpuclnt.dll"
#cfunc global FwpmProviderContextGetByKey1 "FwpmProviderContextGetByKey1" int, var, var
; res = FwpmProviderContextGetByKey1(engineHandle, key, providerContext)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; key : GUID* -> "var"
; providerContext : FWPM_PROVIDER_CONTEXT1** out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 (
	fwpuclnt = windows.NewLazySystemDLL("fwpuclnt.dll")
	procFwpmProviderContextGetByKey1 = fwpuclnt.NewProc("FwpmProviderContextGetByKey1")
)

// engineHandle (FWPM_ENGINE_HANDLE), key (GUID*), providerContext (FWPM_PROVIDER_CONTEXT1** out)
r1, _, err := procFwpmProviderContextGetByKey1.Call(
	uintptr(engineHandle),
	uintptr(key),
	uintptr(providerContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function FwpmProviderContextGetByKey1(
  engineHandle: FWPM_ENGINE_HANDLE;   // FWPM_ENGINE_HANDLE
  key: PGUID;   // GUID*
  providerContext: Pointer   // FWPM_PROVIDER_CONTEXT1** out
): DWORD; stdcall;
  external 'fwpuclnt.dll' name 'FwpmProviderContextGetByKey1';

result := DllCall("fwpuclnt\FwpmProviderContextGetByKey1"
    , "Ptr", engineHandle   ; FWPM_ENGINE_HANDLE
    , "Ptr", key   ; GUID*
    , "Ptr", providerContext   ; FWPM_PROVIDER_CONTEXT1** out
    , "UInt")   ; return: DWORD

●FwpmProviderContextGetByKey1(engineHandle, key, providerContext) = DLL("fwpuclnt.dll", "dword FwpmProviderContextGetByKey1(void*, void*, void*)")
# 呼び出し: FwpmProviderContextGetByKey1(engineHandle, key, providerContext)
# engineHandle : FWPM_ENGINE_HANDLE -> "void*"
# key : GUID* -> "void*"
# providerContext : FWPM_PROVIDER_CONTEXT1** 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)。