AVIBuildFilterW

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

HRESULT AVIBuildFilterW(
    LPWSTR lpszFilter,
    INT cbFilter,
    BOOL fSaving
);

<DllImport("AVIFIL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function AVIBuildFilterW(
    <MarshalAs(UnmanagedType.LPWStr)> lpszFilter As System.Text.StringBuilder,   ' LPWSTR out
    cbFilter As Integer,   ' INT
    fSaving As Boolean   ' BOOL
) As Integer
End Function

' lpszFilter : LPWSTR out
' cbFilter : INT
' fSaving : BOOL
Declare PtrSafe Function AVIBuildFilterW Lib "avifil32" ( _
    ByVal lpszFilter As LongPtr, _
    ByVal cbFilter As Long, _
    ByVal fSaving As Long) 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

AVIBuildFilterW = ctypes.windll.avifil32.AVIBuildFilterW
AVIBuildFilterW.restype = ctypes.c_int
AVIBuildFilterW.argtypes = [
    wintypes.LPWSTR,  # lpszFilter : LPWSTR out
    ctypes.c_int,  # cbFilter : INT
    wintypes.BOOL,  # fSaving : BOOL
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('AVIFIL32.dll')
AVIBuildFilterW = Fiddle::Function.new(
  lib['AVIBuildFilterW'],
  [
    Fiddle::TYPE_VOIDP,  # lpszFilter : LPWSTR out
    Fiddle::TYPE_INT,  # cbFilter : INT
    Fiddle::TYPE_INT,  # fSaving : BOOL
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "avifil32")]
extern "system" {
    fn AVIBuildFilterW(
        lpszFilter: *mut u16,  // LPWSTR out
        cbFilter: i32,  // INT
        fSaving: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("AVIFIL32.dll", CharSet = CharSet.Unicode)]
public static extern int AVIBuildFilterW([MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpszFilter, int cbFilter, bool fSaving);
"@
$api = Add-Type -MemberDefinition $sig -Name 'AVIFIL32_AVIBuildFilterW' -Namespace Win32 -PassThru
# $api::AVIBuildFilterW(lpszFilter, cbFilter, fSaving)

#uselib "AVIFIL32.dll"
#func global AVIBuildFilterW "AVIBuildFilterW" wptr, wptr, wptr
; AVIBuildFilterW varptr(lpszFilter), cbFilter, fSaving   ; 戻り値は stat
; lpszFilter : LPWSTR out -> "wptr"
; cbFilter : INT -> "wptr"
; fSaving : BOOL -> "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 AVIBuildFilterW "AVIBuildFilterW" var, int, int
; res = AVIBuildFilterW(lpszFilter, cbFilter, fSaving)
; lpszFilter : LPWSTR out -> "var"
; cbFilter : INT -> "int"
; fSaving : BOOL -> "int"
; ※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 AVIBuildFilterW(LPWSTR lpszFilter, INT cbFilter, BOOL fSaving)
#uselib "AVIFIL32.dll"
#cfunc global AVIBuildFilterW "AVIBuildFilterW" var, int, int
; res = AVIBuildFilterW(lpszFilter, cbFilter, fSaving)
; lpszFilter : LPWSTR out -> "var"
; cbFilter : INT -> "int"
; fSaving : BOOL -> "int"
; ※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")
	procAVIBuildFilterW = avifil32.NewProc("AVIBuildFilterW")
)

// lpszFilter (LPWSTR out), cbFilter (INT), fSaving (BOOL)
r1, _, err := procAVIBuildFilterW.Call(
	uintptr(lpszFilter),
	uintptr(cbFilter),
	uintptr(fSaving),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function AVIBuildFilterW(
  lpszFilter: PWideChar;   // LPWSTR out
  cbFilter: Integer;   // INT
  fSaving: BOOL   // BOOL
): Integer; stdcall;
  external 'AVIFIL32.dll' name 'AVIBuildFilterW';

result := DllCall("AVIFIL32\AVIBuildFilterW"
    , "Ptr", lpszFilter   ; LPWSTR out
    , "Int", cbFilter   ; INT
    , "Int", fSaving   ; BOOL
    , "Int")   ; return: HRESULT

●AVIBuildFilterW(lpszFilter, cbFilter, fSaving) = DLL("AVIFIL32.dll", "int AVIBuildFilterW(char*, int, bool)")
# 呼び出し: AVIBuildFilterW(lpszFilter, cbFilter, fSaving)
# lpszFilter : LPWSTR out -> "char*"
# cbFilter : INT -> "int"
# fSaving : BOOL -> "bool"
# 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。