EditStreamSetNameW

// AVIFIL32.dll  (Unicode / -W)
#include <windows.h>

HRESULT EditStreamSetNameW(
    IAVIStream* pavi,
    LPCWSTR lpszName
);

<DllImport("AVIFIL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function EditStreamSetNameW(
    pavi As IntPtr,   ' IAVIStream*
    <MarshalAs(UnmanagedType.LPWStr)> lpszName As String   ' LPCWSTR
) As Integer
End Function

' pavi : IAVIStream*
' lpszName : LPCWSTR
Declare PtrSafe Function EditStreamSetNameW Lib "avifil32" ( _
    ByVal pavi As LongPtr, _
    ByVal lpszName As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

EditStreamSetNameW = ctypes.windll.avifil32.EditStreamSetNameW
EditStreamSetNameW.restype = ctypes.c_int
EditStreamSetNameW.argtypes = [
    ctypes.c_void_p,  # pavi : IAVIStream*
    wintypes.LPCWSTR,  # lpszName : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('AVIFIL32.dll')
EditStreamSetNameW = Fiddle::Function.new(
  lib['EditStreamSetNameW'],
  [
    Fiddle::TYPE_VOIDP,  # pavi : IAVIStream*
    Fiddle::TYPE_VOIDP,  # lpszName : LPCWSTR
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "avifil32")]
extern "system" {
    fn EditStreamSetNameW(
        pavi: *mut core::ffi::c_void,  // IAVIStream*
        lpszName: *const u16  // LPCWSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("AVIFIL32.dll", CharSet = CharSet.Unicode)]
public static extern int EditStreamSetNameW(IntPtr pavi, [MarshalAs(UnmanagedType.LPWStr)] string lpszName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'AVIFIL32_EditStreamSetNameW' -Namespace Win32 -PassThru
# $api::EditStreamSetNameW(pavi, lpszName)

#uselib "AVIFIL32.dll"
#func global EditStreamSetNameW "EditStreamSetNameW" wptr, wptr
; EditStreamSetNameW pavi, lpszName   ; 戻り値は stat
; pavi : IAVIStream* -> "wptr"
; lpszName : LPCWSTR -> "wptr"
; ※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 "AVIFIL32.dll"
#cfunc global EditStreamSetNameW "EditStreamSetNameW" sptr, wstr
; res = EditStreamSetNameW(pavi, lpszName)
; pavi : IAVIStream* -> "sptr"
; lpszName : LPCWSTR -> "wstr"

; HRESULT EditStreamSetNameW(IAVIStream* pavi, LPCWSTR lpszName)
#uselib "AVIFIL32.dll"
#cfunc global EditStreamSetNameW "EditStreamSetNameW" intptr, wstr
; res = EditStreamSetNameW(pavi, lpszName)
; pavi : IAVIStream* -> "intptr"
; lpszName : LPCWSTR -> "wstr"

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

var (
	avifil32 = windows.NewLazySystemDLL("AVIFIL32.dll")
	procEditStreamSetNameW = avifil32.NewProc("EditStreamSetNameW")
)

// pavi (IAVIStream*), lpszName (LPCWSTR)
r1, _, err := procEditStreamSetNameW.Call(
	uintptr(pavi),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function EditStreamSetNameW(
  pavi: Pointer;   // IAVIStream*
  lpszName: PWideChar   // LPCWSTR
): Integer; stdcall;
  external 'AVIFIL32.dll' name 'EditStreamSetNameW';

result := DllCall("AVIFIL32\EditStreamSetNameW"
    , "Ptr", pavi   ; IAVIStream*
    , "WStr", lpszName   ; LPCWSTR
    , "Int")   ; return: HRESULT

●EditStreamSetNameW(pavi, lpszName) = DLL("AVIFIL32.dll", "int EditStreamSetNameW(void*, char*)")
# 呼び出し: EditStreamSetNameW(pavi, lpszName)
# pavi : IAVIStream* -> "void*"
# lpszName : LPCWSTR -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。