ICInstall

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

BOOL ICInstall(
    DWORD fccType,
    DWORD fccHandler,
    LPARAM lParam,
    LPSTR szDesc,
    DWORD wFlags
);

<DllImport("MSVFW32.dll", ExactSpelling:=True)>
Public Shared Function ICInstall(
    fccType As UInteger,   ' DWORD
    fccHandler As UInteger,   ' DWORD
    lParam As IntPtr,   ' LPARAM
    <MarshalAs(UnmanagedType.LPStr)> szDesc As String,   ' LPSTR
    wFlags As UInteger   ' DWORD
) As Boolean
End Function

' fccType : DWORD
' fccHandler : DWORD
' lParam : LPARAM
' szDesc : LPSTR
' wFlags : DWORD
Declare PtrSafe Function ICInstall Lib "msvfw32" ( _
    ByVal fccType As Long, _
    ByVal fccHandler As Long, _
    ByVal lParam As LongPtr, _
    ByVal szDesc As String, _
    ByVal wFlags As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ICInstall = ctypes.windll.msvfw32.ICInstall
ICInstall.restype = wintypes.BOOL
ICInstall.argtypes = [
    wintypes.DWORD,  # fccType : DWORD
    wintypes.DWORD,  # fccHandler : DWORD
    ctypes.c_ssize_t,  # lParam : LPARAM
    wintypes.LPCSTR,  # szDesc : LPSTR
    wintypes.DWORD,  # wFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSVFW32.dll')
ICInstall = Fiddle::Function.new(
  lib['ICInstall'],
  [
    -Fiddle::TYPE_INT,  # fccType : DWORD
    -Fiddle::TYPE_INT,  # fccHandler : DWORD
    Fiddle::TYPE_INTPTR_T,  # lParam : LPARAM
    Fiddle::TYPE_VOIDP,  # szDesc : LPSTR
    -Fiddle::TYPE_INT,  # wFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "msvfw32")]
extern "system" {
    fn ICInstall(
        fccType: u32,  // DWORD
        fccHandler: u32,  // DWORD
        lParam: isize,  // LPARAM
        szDesc: *mut u8,  // LPSTR
        wFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("MSVFW32.dll")]
public static extern bool ICInstall(uint fccType, uint fccHandler, IntPtr lParam, [MarshalAs(UnmanagedType.LPStr)] string szDesc, uint wFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSVFW32_ICInstall' -Namespace Win32 -PassThru
# $api::ICInstall(fccType, fccHandler, lParam, szDesc, wFlags)

#uselib "MSVFW32.dll"
#func global ICInstall "ICInstall" sptr, sptr, sptr, sptr, sptr
; ICInstall fccType, fccHandler, lParam, szDesc, wFlags   ; 戻り値は stat
; fccType : DWORD -> "sptr"
; fccHandler : DWORD -> "sptr"
; lParam : LPARAM -> "sptr"
; szDesc : LPSTR -> "sptr"
; wFlags : DWORD -> "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 ICInstall "ICInstall" int, int, sptr, str, int
; res = ICInstall(fccType, fccHandler, lParam, szDesc, wFlags)
; fccType : DWORD -> "int"
; fccHandler : DWORD -> "int"
; lParam : LPARAM -> "sptr"
; szDesc : LPSTR -> "str"
; wFlags : DWORD -> "int"

; BOOL ICInstall(DWORD fccType, DWORD fccHandler, LPARAM lParam, LPSTR szDesc, DWORD wFlags)
#uselib "MSVFW32.dll"
#cfunc global ICInstall "ICInstall" int, int, intptr, str, int
; res = ICInstall(fccType, fccHandler, lParam, szDesc, wFlags)
; fccType : DWORD -> "int"
; fccHandler : DWORD -> "int"
; lParam : LPARAM -> "intptr"
; szDesc : LPSTR -> "str"
; wFlags : DWORD -> "int"

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

var (
	msvfw32 = windows.NewLazySystemDLL("MSVFW32.dll")
	procICInstall = msvfw32.NewProc("ICInstall")
)

// fccType (DWORD), fccHandler (DWORD), lParam (LPARAM), szDesc (LPSTR), wFlags (DWORD)
r1, _, err := procICInstall.Call(
	uintptr(fccType),
	uintptr(fccHandler),
	uintptr(lParam),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szDesc))),
	uintptr(wFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function ICInstall(
  fccType: DWORD;   // DWORD
  fccHandler: DWORD;   // DWORD
  lParam: NativeInt;   // LPARAM
  szDesc: PAnsiChar;   // LPSTR
  wFlags: DWORD   // DWORD
): BOOL; stdcall;
  external 'MSVFW32.dll' name 'ICInstall';

result := DllCall("MSVFW32\ICInstall"
    , "UInt", fccType   ; DWORD
    , "UInt", fccHandler   ; DWORD
    , "Ptr", lParam   ; LPARAM
    , "AStr", szDesc   ; LPSTR
    , "UInt", wFlags   ; DWORD
    , "Int")   ; return: BOOL

●ICInstall(fccType, fccHandler, lParam, szDesc, wFlags) = DLL("MSVFW32.dll", "bool ICInstall(dword, dword, int, char*, dword)")
# 呼び出し: ICInstall(fccType, fccHandler, lParam, szDesc, wFlags)
# fccType : DWORD -> "dword"
# fccHandler : DWORD -> "dword"
# lParam : LPARAM -> "int"
# szDesc : LPSTR -> "char*"
# wFlags : DWORD -> "dword"
# 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)。