AVIStreamOpenFromFileA

// AVIFIL32.dll  (ANSI / -A)
#include <windows.h>

HRESULT AVIStreamOpenFromFileA(
    IAVIStream** ppavi,
    LPCSTR szFile,
    DWORD fccType,
    INT lParam,
    DWORD mode,
    GUID* pclsidHandler   // optional
);

<DllImport("AVIFIL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function AVIStreamOpenFromFileA(
    ppavi As IntPtr,   ' IAVIStream** out
    <MarshalAs(UnmanagedType.LPStr)> szFile As String,   ' LPCSTR
    fccType As UInteger,   ' DWORD
    lParam As Integer,   ' INT
    mode As UInteger,   ' DWORD
    pclsidHandler As IntPtr   ' GUID* optional
) As Integer
End Function

' ppavi : IAVIStream** out
' szFile : LPCSTR
' fccType : DWORD
' lParam : INT
' mode : DWORD
' pclsidHandler : GUID* optional
Declare PtrSafe Function AVIStreamOpenFromFileA Lib "avifil32" ( _
    ByVal ppavi As LongPtr, _
    ByVal szFile As String, _
    ByVal fccType As Long, _
    ByVal lParam As Long, _
    ByVal mode As Long, _
    ByVal pclsidHandler As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

AVIStreamOpenFromFileA = ctypes.windll.avifil32.AVIStreamOpenFromFileA
AVIStreamOpenFromFileA.restype = ctypes.c_int
AVIStreamOpenFromFileA.argtypes = [
    ctypes.c_void_p,  # ppavi : IAVIStream** out
    wintypes.LPCSTR,  # szFile : LPCSTR
    wintypes.DWORD,  # fccType : DWORD
    ctypes.c_int,  # lParam : INT
    wintypes.DWORD,  # mode : DWORD
    ctypes.c_void_p,  # pclsidHandler : GUID* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('AVIFIL32.dll')
AVIStreamOpenFromFileA = Fiddle::Function.new(
  lib['AVIStreamOpenFromFileA'],
  [
    Fiddle::TYPE_VOIDP,  # ppavi : IAVIStream** out
    Fiddle::TYPE_VOIDP,  # szFile : LPCSTR
    -Fiddle::TYPE_INT,  # fccType : DWORD
    Fiddle::TYPE_INT,  # lParam : INT
    -Fiddle::TYPE_INT,  # mode : DWORD
    Fiddle::TYPE_VOIDP,  # pclsidHandler : GUID* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "avifil32")]
extern "system" {
    fn AVIStreamOpenFromFileA(
        ppavi: *mut *mut core::ffi::c_void,  // IAVIStream** out
        szFile: *const u8,  // LPCSTR
        fccType: u32,  // DWORD
        lParam: i32,  // INT
        mode: u32,  // DWORD
        pclsidHandler: *mut GUID  // GUID* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("AVIFIL32.dll", CharSet = CharSet.Ansi)]
public static extern int AVIStreamOpenFromFileA(IntPtr ppavi, [MarshalAs(UnmanagedType.LPStr)] string szFile, uint fccType, int lParam, uint mode, IntPtr pclsidHandler);
"@
$api = Add-Type -MemberDefinition $sig -Name 'AVIFIL32_AVIStreamOpenFromFileA' -Namespace Win32 -PassThru
# $api::AVIStreamOpenFromFileA(ppavi, szFile, fccType, lParam, mode, pclsidHandler)

#uselib "AVIFIL32.dll"
#func global AVIStreamOpenFromFileA "AVIStreamOpenFromFileA" sptr, sptr, sptr, sptr, sptr, sptr
; AVIStreamOpenFromFileA ppavi, szFile, fccType, lParam, mode, varptr(pclsidHandler)   ; 戻り値は stat
; ppavi : IAVIStream** out -> "sptr"
; szFile : LPCSTR -> "sptr"
; fccType : DWORD -> "sptr"
; lParam : INT -> "sptr"
; mode : DWORD -> "sptr"
; pclsidHandler : GUID* optional -> "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 "AVIFIL32.dll"
#cfunc global AVIStreamOpenFromFileA "AVIStreamOpenFromFileA" sptr, str, int, int, int, var
; res = AVIStreamOpenFromFileA(ppavi, szFile, fccType, lParam, mode, pclsidHandler)
; ppavi : IAVIStream** out -> "sptr"
; szFile : LPCSTR -> "str"
; fccType : DWORD -> "int"
; lParam : INT -> "int"
; mode : DWORD -> "int"
; pclsidHandler : GUID* optional -> "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 AVIStreamOpenFromFileA(IAVIStream** ppavi, LPCSTR szFile, DWORD fccType, INT lParam, DWORD mode, GUID* pclsidHandler)
#uselib "AVIFIL32.dll"
#cfunc global AVIStreamOpenFromFileA "AVIStreamOpenFromFileA" intptr, str, int, int, int, var
; res = AVIStreamOpenFromFileA(ppavi, szFile, fccType, lParam, mode, pclsidHandler)
; ppavi : IAVIStream** out -> "intptr"
; szFile : LPCSTR -> "str"
; fccType : DWORD -> "int"
; lParam : INT -> "int"
; mode : DWORD -> "int"
; pclsidHandler : GUID* optional -> "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")
	procAVIStreamOpenFromFileA = avifil32.NewProc("AVIStreamOpenFromFileA")
)

// ppavi (IAVIStream** out), szFile (LPCSTR), fccType (DWORD), lParam (INT), mode (DWORD), pclsidHandler (GUID* optional)
r1, _, err := procAVIStreamOpenFromFileA.Call(
	uintptr(ppavi),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szFile))),
	uintptr(fccType),
	uintptr(lParam),
	uintptr(mode),
	uintptr(pclsidHandler),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function AVIStreamOpenFromFileA(
  ppavi: Pointer;   // IAVIStream** out
  szFile: PAnsiChar;   // LPCSTR
  fccType: DWORD;   // DWORD
  lParam: Integer;   // INT
  mode: DWORD;   // DWORD
  pclsidHandler: PGUID   // GUID* optional
): Integer; stdcall;
  external 'AVIFIL32.dll' name 'AVIStreamOpenFromFileA';

result := DllCall("AVIFIL32\AVIStreamOpenFromFileA"
    , "Ptr", ppavi   ; IAVIStream** out
    , "AStr", szFile   ; LPCSTR
    , "UInt", fccType   ; DWORD
    , "Int", lParam   ; INT
    , "UInt", mode   ; DWORD
    , "Ptr", pclsidHandler   ; GUID* optional
    , "Int")   ; return: HRESULT

●AVIStreamOpenFromFileA(ppavi, szFile, fccType, lParam, mode, pclsidHandler) = DLL("AVIFIL32.dll", "int AVIStreamOpenFromFileA(void*, char*, dword, int, dword, void*)")
# 呼び出し: AVIStreamOpenFromFileA(ppavi, szFile, fccType, lParam, mode, pclsidHandler)
# ppavi : IAVIStream** out -> "void*"
# szFile : LPCSTR -> "char*"
# fccType : DWORD -> "dword"
# lParam : INT -> "int"
# mode : DWORD -> "dword"
# pclsidHandler : GUID* optional -> "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)。