AVIFileCreateStreamW

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

HRESULT AVIFileCreateStreamW(
    IAVIFile* pfile,
    IAVIStream** ppavi,
    AVISTREAMINFOW* psi
);

<DllImport("AVIFIL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function AVIFileCreateStreamW(
    pfile As IntPtr,   ' IAVIFile*
    ppavi As IntPtr,   ' IAVIStream** out
    psi As IntPtr   ' AVISTREAMINFOW*
) As Integer
End Function

' pfile : IAVIFile*
' ppavi : IAVIStream** out
' psi : AVISTREAMINFOW*
Declare PtrSafe Function AVIFileCreateStreamW Lib "avifil32" ( _
    ByVal pfile As LongPtr, _
    ByVal ppavi As LongPtr, _
    ByVal psi 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

AVIFileCreateStreamW = ctypes.windll.avifil32.AVIFileCreateStreamW
AVIFileCreateStreamW.restype = ctypes.c_int
AVIFileCreateStreamW.argtypes = [
    ctypes.c_void_p,  # pfile : IAVIFile*
    ctypes.c_void_p,  # ppavi : IAVIStream** out
    ctypes.c_void_p,  # psi : AVISTREAMINFOW*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('AVIFIL32.dll')
AVIFileCreateStreamW = Fiddle::Function.new(
  lib['AVIFileCreateStreamW'],
  [
    Fiddle::TYPE_VOIDP,  # pfile : IAVIFile*
    Fiddle::TYPE_VOIDP,  # ppavi : IAVIStream** out
    Fiddle::TYPE_VOIDP,  # psi : AVISTREAMINFOW*
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "avifil32")]
extern "system" {
    fn AVIFileCreateStreamW(
        pfile: *mut core::ffi::c_void,  // IAVIFile*
        ppavi: *mut *mut core::ffi::c_void,  // IAVIStream** out
        psi: *mut AVISTREAMINFOW  // AVISTREAMINFOW*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("AVIFIL32.dll", CharSet = CharSet.Unicode)]
public static extern int AVIFileCreateStreamW(IntPtr pfile, IntPtr ppavi, IntPtr psi);
"@
$api = Add-Type -MemberDefinition $sig -Name 'AVIFIL32_AVIFileCreateStreamW' -Namespace Win32 -PassThru
# $api::AVIFileCreateStreamW(pfile, ppavi, psi)

#uselib "AVIFIL32.dll"
#func global AVIFileCreateStreamW "AVIFileCreateStreamW" wptr, wptr, wptr
; AVIFileCreateStreamW pfile, ppavi, varptr(psi)   ; 戻り値は stat
; pfile : IAVIFile* -> "wptr"
; ppavi : IAVIStream** out -> "wptr"
; psi : AVISTREAMINFOW* -> "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 AVIFileCreateStreamW "AVIFileCreateStreamW" sptr, sptr, var
; res = AVIFileCreateStreamW(pfile, ppavi, psi)
; pfile : IAVIFile* -> "sptr"
; ppavi : IAVIStream** out -> "sptr"
; psi : AVISTREAMINFOW* -> "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 AVIFileCreateStreamW(IAVIFile* pfile, IAVIStream** ppavi, AVISTREAMINFOW* psi)
#uselib "AVIFIL32.dll"
#cfunc global AVIFileCreateStreamW "AVIFileCreateStreamW" intptr, intptr, var
; res = AVIFileCreateStreamW(pfile, ppavi, psi)
; pfile : IAVIFile* -> "intptr"
; ppavi : IAVIStream** out -> "intptr"
; psi : AVISTREAMINFOW* -> "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 (
	avifil32 = windows.NewLazySystemDLL("AVIFIL32.dll")
	procAVIFileCreateStreamW = avifil32.NewProc("AVIFileCreateStreamW")
)

// pfile (IAVIFile*), ppavi (IAVIStream** out), psi (AVISTREAMINFOW*)
r1, _, err := procAVIFileCreateStreamW.Call(
	uintptr(pfile),
	uintptr(ppavi),
	uintptr(psi),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function AVIFileCreateStreamW(
  pfile: Pointer;   // IAVIFile*
  ppavi: Pointer;   // IAVIStream** out
  psi: Pointer   // AVISTREAMINFOW*
): Integer; stdcall;
  external 'AVIFIL32.dll' name 'AVIFileCreateStreamW';

result := DllCall("AVIFIL32\AVIFileCreateStreamW"
    , "Ptr", pfile   ; IAVIFile*
    , "Ptr", ppavi   ; IAVIStream** out
    , "Ptr", psi   ; AVISTREAMINFOW*
    , "Int")   ; return: HRESULT

●AVIFileCreateStreamW(pfile, ppavi, psi) = DLL("AVIFIL32.dll", "int AVIFileCreateStreamW(void*, void*, void*)")
# 呼び出し: AVIFileCreateStreamW(pfile, ppavi, psi)
# pfile : IAVIFile* -> "void*"
# ppavi : IAVIStream** out -> "void*"
# psi : AVISTREAMINFOW* -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。