RegisterMediaTypes

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

HRESULT RegisterMediaTypes(
    DWORD ctypes,
    LPCSTR* rgszTypes,
    WORD* rgcfTypes
);

<DllImport("urlmon.dll", ExactSpelling:=True)>
Public Shared Function RegisterMediaTypes(
    ctypes As UInteger,   ' DWORD
    rgszTypes As IntPtr,   ' LPCSTR*
    <Out> ByRef rgcfTypes As UShort   ' WORD* out
) As Integer
End Function

' ctypes : DWORD
' rgszTypes : LPCSTR*
' rgcfTypes : WORD* out
Declare PtrSafe Function RegisterMediaTypes Lib "urlmon" ( _
    ByVal ctypes As Long, _
    ByVal rgszTypes As LongPtr, _
    ByRef rgcfTypes As Integer) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

RegisterMediaTypes = ctypes.windll.urlmon.RegisterMediaTypes
RegisterMediaTypes.restype = ctypes.c_int
RegisterMediaTypes.argtypes = [
    wintypes.DWORD,  # ctypes : DWORD
    ctypes.c_void_p,  # rgszTypes : LPCSTR*
    ctypes.POINTER(ctypes.c_ushort),  # rgcfTypes : WORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('urlmon.dll')
RegisterMediaTypes = Fiddle::Function.new(
  lib['RegisterMediaTypes'],
  [
    -Fiddle::TYPE_INT,  # ctypes : DWORD
    Fiddle::TYPE_VOIDP,  # rgszTypes : LPCSTR*
    Fiddle::TYPE_VOIDP,  # rgcfTypes : WORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "urlmon")]
extern "system" {
    fn RegisterMediaTypes(
        ctypes: u32,  // DWORD
        rgszTypes: *const *const u8,  // LPCSTR*
        rgcfTypes: *mut u16  // WORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("urlmon.dll")]
public static extern int RegisterMediaTypes(uint ctypes, IntPtr rgszTypes, out ushort rgcfTypes);
"@
$api = Add-Type -MemberDefinition $sig -Name 'urlmon_RegisterMediaTypes' -Namespace Win32 -PassThru
# $api::RegisterMediaTypes(ctypes, rgszTypes, rgcfTypes)

#uselib "urlmon.dll"
#func global RegisterMediaTypes "RegisterMediaTypes" sptr, sptr, sptr
; RegisterMediaTypes ctypes, varptr(rgszTypes), varptr(rgcfTypes)   ; 戻り値は stat
; ctypes : DWORD -> "sptr"
; rgszTypes : LPCSTR* -> "sptr"
; rgcfTypes : WORD* 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 "urlmon.dll"
#cfunc global RegisterMediaTypes "RegisterMediaTypes" int, var, var
; res = RegisterMediaTypes(ctypes, rgszTypes, rgcfTypes)
; ctypes : DWORD -> "int"
; rgszTypes : LPCSTR* -> "var"
; rgcfTypes : WORD* 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。

; HRESULT RegisterMediaTypes(DWORD ctypes, LPCSTR* rgszTypes, WORD* rgcfTypes)
#uselib "urlmon.dll"
#cfunc global RegisterMediaTypes "RegisterMediaTypes" int, var, var
; res = RegisterMediaTypes(ctypes, rgszTypes, rgcfTypes)
; ctypes : DWORD -> "int"
; rgszTypes : LPCSTR* -> "var"
; rgcfTypes : WORD* 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 (
	urlmon = windows.NewLazySystemDLL("urlmon.dll")
	procRegisterMediaTypes = urlmon.NewProc("RegisterMediaTypes")
)

// ctypes (DWORD), rgszTypes (LPCSTR*), rgcfTypes (WORD* out)
r1, _, err := procRegisterMediaTypes.Call(
	uintptr(ctypes),
	uintptr(rgszTypes),
	uintptr(rgcfTypes),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function RegisterMediaTypes(
  ctypes: DWORD;   // DWORD
  rgszTypes: PPAnsiChar;   // LPCSTR*
  rgcfTypes: Pointer   // WORD* out
): Integer; stdcall;
  external 'urlmon.dll' name 'RegisterMediaTypes';

result := DllCall("urlmon\RegisterMediaTypes"
    , "UInt", ctypes   ; DWORD
    , "Ptr", rgszTypes   ; LPCSTR*
    , "Ptr", rgcfTypes   ; WORD* out
    , "Int")   ; return: HRESULT

●RegisterMediaTypes(ctypes, rgszTypes, rgcfTypes) = DLL("urlmon.dll", "int RegisterMediaTypes(dword, void*, void*)")
# 呼び出し: RegisterMediaTypes(ctypes, rgszTypes, rgcfTypes)
# ctypes : DWORD -> "dword"
# rgszTypes : LPCSTR* -> "void*"
# rgcfTypes : WORD* 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)。