ICInfo

// MSVFW32.dll
#include <windows.h>

BOOL ICInfo(
    DWORD fccType,
    DWORD fccHandler,
    ICINFO* lpicinfo
);

<DllImport("MSVFW32.dll", ExactSpelling:=True)>
Public Shared Function ICInfo(
    fccType As UInteger,   ' DWORD
    fccHandler As UInteger,   ' DWORD
    lpicinfo As IntPtr   ' ICINFO* out
) As Boolean
End Function

' fccType : DWORD
' fccHandler : DWORD
' lpicinfo : ICINFO* out
Declare PtrSafe Function ICInfo Lib "msvfw32" ( _
    ByVal fccType As Long, _
    ByVal fccHandler As Long, _
    ByVal lpicinfo 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

ICInfo = ctypes.windll.msvfw32.ICInfo
ICInfo.restype = wintypes.BOOL
ICInfo.argtypes = [
    wintypes.DWORD,  # fccType : DWORD
    wintypes.DWORD,  # fccHandler : DWORD
    ctypes.c_void_p,  # lpicinfo : ICINFO* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSVFW32.dll')
ICInfo = Fiddle::Function.new(
  lib['ICInfo'],
  [
    -Fiddle::TYPE_INT,  # fccType : DWORD
    -Fiddle::TYPE_INT,  # fccHandler : DWORD
    Fiddle::TYPE_VOIDP,  # lpicinfo : ICINFO* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msvfw32")]
extern "system" {
    fn ICInfo(
        fccType: u32,  // DWORD
        fccHandler: u32,  // DWORD
        lpicinfo: *mut ICINFO  // ICINFO* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("MSVFW32.dll")]
public static extern bool ICInfo(uint fccType, uint fccHandler, IntPtr lpicinfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSVFW32_ICInfo' -Namespace Win32 -PassThru
# $api::ICInfo(fccType, fccHandler, lpicinfo)

#uselib "MSVFW32.dll"
#func global ICInfo "ICInfo" sptr, sptr, sptr
; ICInfo fccType, fccHandler, varptr(lpicinfo)   ; 戻り値は stat
; fccType : DWORD -> "sptr"
; fccHandler : DWORD -> "sptr"
; lpicinfo : ICINFO* 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 "MSVFW32.dll"
#cfunc global ICInfo "ICInfo" int, int, var
; res = ICInfo(fccType, fccHandler, lpicinfo)
; fccType : DWORD -> "int"
; fccHandler : DWORD -> "int"
; lpicinfo : ICINFO* 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。

; BOOL ICInfo(DWORD fccType, DWORD fccHandler, ICINFO* lpicinfo)
#uselib "MSVFW32.dll"
#cfunc global ICInfo "ICInfo" int, int, var
; res = ICInfo(fccType, fccHandler, lpicinfo)
; fccType : DWORD -> "int"
; fccHandler : DWORD -> "int"
; lpicinfo : ICINFO* 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 (
	msvfw32 = windows.NewLazySystemDLL("MSVFW32.dll")
	procICInfo = msvfw32.NewProc("ICInfo")
)

// fccType (DWORD), fccHandler (DWORD), lpicinfo (ICINFO* out)
r1, _, err := procICInfo.Call(
	uintptr(fccType),
	uintptr(fccHandler),
	uintptr(lpicinfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function ICInfo(
  fccType: DWORD;   // DWORD
  fccHandler: DWORD;   // DWORD
  lpicinfo: Pointer   // ICINFO* out
): BOOL; stdcall;
  external 'MSVFW32.dll' name 'ICInfo';

result := DllCall("MSVFW32\ICInfo"
    , "UInt", fccType   ; DWORD
    , "UInt", fccHandler   ; DWORD
    , "Ptr", lpicinfo   ; ICINFO* out
    , "Int")   ; return: BOOL

●ICInfo(fccType, fccHandler, lpicinfo) = DLL("MSVFW32.dll", "bool ICInfo(dword, dword, void*)")
# 呼び出し: ICInfo(fccType, fccHandler, lpicinfo)
# fccType : DWORD -> "dword"
# fccHandler : DWORD -> "dword"
# lpicinfo : ICINFO* 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)。