KsGetMediaType

// ksproxy.ax
#include <windows.h>

HRESULT KsGetMediaType(
    INT Position,
    AM_MEDIA_TYPE* AmMediaType,
    HANDLE FilterHandle,
    DWORD PinFactoryId
);

<DllImport("ksproxy.ax", ExactSpelling:=True)>
Public Shared Function KsGetMediaType(
    Position As Integer,   ' INT
    AmMediaType As IntPtr,   ' AM_MEDIA_TYPE* out
    FilterHandle As IntPtr,   ' HANDLE
    PinFactoryId As UInteger   ' DWORD
) As Integer
End Function

' Position : INT
' AmMediaType : AM_MEDIA_TYPE* out
' FilterHandle : HANDLE
' PinFactoryId : DWORD
Declare PtrSafe Function KsGetMediaType Lib "ksproxy.ax" ( _
    ByVal Position As Long, _
    ByVal AmMediaType As LongPtr, _
    ByVal FilterHandle As LongPtr, _
    ByVal PinFactoryId As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

KsGetMediaType = ctypes.windll.LoadLibrary("ksproxy.ax").KsGetMediaType
KsGetMediaType.restype = ctypes.c_int
KsGetMediaType.argtypes = [
    ctypes.c_int,  # Position : INT
    ctypes.c_void_p,  # AmMediaType : AM_MEDIA_TYPE* out
    wintypes.HANDLE,  # FilterHandle : HANDLE
    wintypes.DWORD,  # PinFactoryId : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ksproxy.ax')
KsGetMediaType = Fiddle::Function.new(
  lib['KsGetMediaType'],
  [
    Fiddle::TYPE_INT,  # Position : INT
    Fiddle::TYPE_VOIDP,  # AmMediaType : AM_MEDIA_TYPE* out
    Fiddle::TYPE_VOIDP,  # FilterHandle : HANDLE
    -Fiddle::TYPE_INT,  # PinFactoryId : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "ksproxy.ax")]
extern "system" {
    fn KsGetMediaType(
        Position: i32,  // INT
        AmMediaType: *mut AM_MEDIA_TYPE,  // AM_MEDIA_TYPE* out
        FilterHandle: *mut core::ffi::c_void,  // HANDLE
        PinFactoryId: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ksproxy.ax")]
public static extern int KsGetMediaType(int Position, IntPtr AmMediaType, IntPtr FilterHandle, uint PinFactoryId);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ksproxy.ax_KsGetMediaType' -Namespace Win32 -PassThru
# $api::KsGetMediaType(Position, AmMediaType, FilterHandle, PinFactoryId)

#uselib "ksproxy.ax"
#func global KsGetMediaType "KsGetMediaType" sptr, sptr, sptr, sptr
; KsGetMediaType Position, varptr(AmMediaType), FilterHandle, PinFactoryId   ; 戻り値は stat
; Position : INT -> "sptr"
; AmMediaType : AM_MEDIA_TYPE* out -> "sptr"
; FilterHandle : HANDLE -> "sptr"
; PinFactoryId : DWORD -> "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。

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

var (
	ksproxy_ax = windows.NewLazySystemDLL("ksproxy.ax")
	procKsGetMediaType = ksproxy_ax.NewProc("KsGetMediaType")
)

// Position (INT), AmMediaType (AM_MEDIA_TYPE* out), FilterHandle (HANDLE), PinFactoryId (DWORD)
r1, _, err := procKsGetMediaType.Call(
	uintptr(Position),
	uintptr(AmMediaType),
	uintptr(FilterHandle),
	uintptr(PinFactoryId),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function KsGetMediaType(
  Position: Integer;   // INT
  AmMediaType: Pointer;   // AM_MEDIA_TYPE* out
  FilterHandle: THandle;   // HANDLE
  PinFactoryId: DWORD   // DWORD
): Integer; stdcall;
  external 'ksproxy.ax' name 'KsGetMediaType';

result := DllCall("ksproxy.ax\KsGetMediaType"
    , "Int", Position   ; INT
    , "Ptr", AmMediaType   ; AM_MEDIA_TYPE* out
    , "Ptr", FilterHandle   ; HANDLE
    , "UInt", PinFactoryId   ; DWORD
    , "Int")   ; return: HRESULT

●KsGetMediaType(Position, AmMediaType, FilterHandle, PinFactoryId) = DLL("ksproxy.ax", "int KsGetMediaType(int, void*, void*, dword)")
# 呼び出し: KsGetMediaType(Position, AmMediaType, FilterHandle, PinFactoryId)
# Position : INT -> "int"
# AmMediaType : AM_MEDIA_TYPE* out -> "void*"
# FilterHandle : HANDLE -> "void*"
# PinFactoryId : DWORD -> "dword"
# 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)。

const std = @import("std");

extern "ksproxy.ax" fn KsGetMediaType(
    Position: i32, // INT
    AmMediaType: [*c]AM_MEDIA_TYPE, // AM_MEDIA_TYPE* out
    FilterHandle: ?*anyopaque, // HANDLE
    PinFactoryId: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc KsGetMediaType(
    Position: int32,  # INT
    AmMediaType: ptr AM_MEDIA_TYPE,  # AM_MEDIA_TYPE* out
    FilterHandle: pointer,  # HANDLE
    PinFactoryId: uint32  # DWORD
): int32 {.importc: "KsGetMediaType", stdcall, dynlib: "ksproxy.ax".}

pragma(lib, "ksproxy.ax");
extern(Windows)
int KsGetMediaType(
    int Position,   // INT
    AM_MEDIA_TYPE* AmMediaType,   // AM_MEDIA_TYPE* out
    void* FilterHandle,   // HANDLE
    uint PinFactoryId   // DWORD
);

ccall((:KsGetMediaType, "ksproxy.ax"), stdcall, Int32,
      (Int32, Ptr{AM_MEDIA_TYPE}, Ptr{Cvoid}, UInt32),
      Position, AmMediaType, FilterHandle, PinFactoryId)
# Position : INT -> Int32
# AmMediaType : AM_MEDIA_TYPE* out -> Ptr{AM_MEDIA_TYPE}
# FilterHandle : HANDLE -> Ptr{Cvoid}
# PinFactoryId : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t KsGetMediaType(
    int32_t Position,
    void* AmMediaType,
    void* FilterHandle,
    uint32_t PinFactoryId);
]]
local ksproxy.ax = ffi.load("ksproxy.ax")
-- ksproxy.ax.KsGetMediaType(Position, AmMediaType, FilterHandle, PinFactoryId)
-- Position : INT
-- AmMediaType : AM_MEDIA_TYPE* out
-- FilterHandle : HANDLE
-- PinFactoryId : DWORD
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('ksproxy.ax');
const KsGetMediaType = lib.func('__stdcall', 'KsGetMediaType', 'int32_t', ['int32_t', 'void *', 'void *', 'uint32_t']);
// KsGetMediaType(Position, AmMediaType, FilterHandle, PinFactoryId)
// Position : INT -> 'int32_t'
// AmMediaType : AM_MEDIA_TYPE* out -> 'void *'
// FilterHandle : HANDLE -> 'void *'
// PinFactoryId : DWORD -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("ksproxy.ax", {
  KsGetMediaType: { parameters: ["i32", "pointer", "pointer", "u32"], result: "i32" },
});
// lib.symbols.KsGetMediaType(Position, AmMediaType, FilterHandle, PinFactoryId)
// Position : INT -> "i32"
// AmMediaType : AM_MEDIA_TYPE* out -> "pointer"
// FilterHandle : HANDLE -> "pointer"
// PinFactoryId : DWORD -> "u32"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t KsGetMediaType(
    int32_t Position,
    void* AmMediaType,
    void* FilterHandle,
    uint32_t PinFactoryId);
C, "ksproxy.ax");
// $ffi->KsGetMediaType(Position, AmMediaType, FilterHandle, PinFactoryId);
// Position : INT
// AmMediaType : AM_MEDIA_TYPE* out
// FilterHandle : HANDLE
// PinFactoryId : DWORD
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Ksproxy.ax extends StdCallLibrary {
    Ksproxy.ax INSTANCE = Native.load("ksproxy.ax", Ksproxy.ax.class);
    int KsGetMediaType(
        int Position,   // INT
        Pointer AmMediaType,   // AM_MEDIA_TYPE* out
        Pointer FilterHandle,   // HANDLE
        int PinFactoryId   // DWORD
    );
}

@[Link("ksproxy.ax")]
lib Libksproxy.ax
  fun KsGetMediaType = KsGetMediaType(
    Position : Int32,   # INT
    AmMediaType : AM_MEDIA_TYPE*,   # AM_MEDIA_TYPE* out
    FilterHandle : Void*,   # HANDLE
    PinFactoryId : UInt32   # DWORD
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef KsGetMediaTypeNative = Int32 Function(Int32, Pointer<Void>, Pointer<Void>, Uint32);
typedef KsGetMediaTypeDart = int Function(int, Pointer<Void>, Pointer<Void>, int);
final KsGetMediaType = DynamicLibrary.open('ksproxy.ax')
    .lookupFunction<KsGetMediaTypeNative, KsGetMediaTypeDart>('KsGetMediaType');
// Position : INT -> Int32
// AmMediaType : AM_MEDIA_TYPE* out -> Pointer<Void>
// FilterHandle : HANDLE -> Pointer<Void>
// PinFactoryId : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function KsGetMediaType(
  Position: Integer;   // INT
  AmMediaType: Pointer;   // AM_MEDIA_TYPE* out
  FilterHandle: THandle;   // HANDLE
  PinFactoryId: DWORD   // DWORD
): Integer; stdcall;
  external 'ksproxy.ax' name 'KsGetMediaType';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "KsGetMediaType"
  c_KsGetMediaType :: Int32 -> Ptr () -> Ptr () -> Word32 -> IO Int32
-- Position : INT -> Int32
-- AmMediaType : AM_MEDIA_TYPE* out -> Ptr ()
-- FilterHandle : HANDLE -> Ptr ()
-- PinFactoryId : DWORD -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let ksgetmediatype =
  foreign "KsGetMediaType"
    (int32_t @-> (ptr void) @-> (ptr void) @-> uint32_t @-> returning int32_t)
(* Position : INT -> int32_t *)
(* AmMediaType : AM_MEDIA_TYPE* out -> (ptr void) *)
(* FilterHandle : HANDLE -> (ptr void) *)
(* PinFactoryId : DWORD -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library ksproxy.ax (t "ksproxy.ax"))
(cffi:use-foreign-library ksproxy.ax)

(cffi:defcfun ("KsGetMediaType" ks-get-media-type :convention :stdcall) :int32
  (position :int32)   ; INT
  (am-media-type :pointer)   ; AM_MEDIA_TYPE* out
  (filter-handle :pointer)   ; HANDLE
  (pin-factory-id :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $KsGetMediaType = Win32::API::More->new('ksproxy.ax',
    'int KsGetMediaType(int Position, LPVOID AmMediaType, HANDLE FilterHandle, DWORD PinFactoryId)');
# my $ret = $KsGetMediaType->Call($Position, $AmMediaType, $FilterHandle, $PinFactoryId);
# Position : INT -> int
# AmMediaType : AM_MEDIA_TYPE* out -> LPVOID
# FilterHandle : HANDLE -> HANDLE
# PinFactoryId : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。