ICOpen

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

HIC ICOpen(
    DWORD fccType,
    DWORD fccHandler,
    DWORD wMode
);

<DllImport("MSVFW32.dll", ExactSpelling:=True)>
Public Shared Function ICOpen(
    fccType As UInteger,   ' DWORD
    fccHandler As UInteger,   ' DWORD
    wMode As UInteger   ' DWORD
) As IntPtr
End Function

' fccType : DWORD
' fccHandler : DWORD
' wMode : DWORD
Declare PtrSafe Function ICOpen Lib "msvfw32" ( _
    ByVal fccType As Long, _
    ByVal fccHandler As Long, _
    ByVal wMode As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ICOpen = ctypes.windll.msvfw32.ICOpen
ICOpen.restype = ctypes.c_void_p
ICOpen.argtypes = [
    wintypes.DWORD,  # fccType : DWORD
    wintypes.DWORD,  # fccHandler : DWORD
    wintypes.DWORD,  # wMode : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSVFW32.dll')
ICOpen = Fiddle::Function.new(
  lib['ICOpen'],
  [
    -Fiddle::TYPE_INT,  # fccType : DWORD
    -Fiddle::TYPE_INT,  # fccHandler : DWORD
    -Fiddle::TYPE_INT,  # wMode : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "msvfw32")]
extern "system" {
    fn ICOpen(
        fccType: u32,  // DWORD
        fccHandler: u32,  // DWORD
        wMode: u32  // DWORD
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MSVFW32.dll")]
public static extern IntPtr ICOpen(uint fccType, uint fccHandler, uint wMode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSVFW32_ICOpen' -Namespace Win32 -PassThru
# $api::ICOpen(fccType, fccHandler, wMode)

#uselib "MSVFW32.dll"
#func global ICOpen "ICOpen" sptr, sptr, sptr
; ICOpen fccType, fccHandler, wMode   ; 戻り値は stat
; fccType : DWORD -> "sptr"
; fccHandler : DWORD -> "sptr"
; wMode : 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 ICOpen "ICOpen" int, int, int
; res = ICOpen(fccType, fccHandler, wMode)
; fccType : DWORD -> "int"
; fccHandler : DWORD -> "int"
; wMode : DWORD -> "int"

; HIC ICOpen(DWORD fccType, DWORD fccHandler, DWORD wMode)
#uselib "MSVFW32.dll"
#cfunc global ICOpen "ICOpen" int, int, int
; res = ICOpen(fccType, fccHandler, wMode)
; fccType : DWORD -> "int"
; fccHandler : DWORD -> "int"
; wMode : DWORD -> "int"

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

var (
	msvfw32 = windows.NewLazySystemDLL("MSVFW32.dll")
	procICOpen = msvfw32.NewProc("ICOpen")
)

// fccType (DWORD), fccHandler (DWORD), wMode (DWORD)
r1, _, err := procICOpen.Call(
	uintptr(fccType),
	uintptr(fccHandler),
	uintptr(wMode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HIC

function ICOpen(
  fccType: DWORD;   // DWORD
  fccHandler: DWORD;   // DWORD
  wMode: DWORD   // DWORD
): THandle; stdcall;
  external 'MSVFW32.dll' name 'ICOpen';

result := DllCall("MSVFW32\ICOpen"
    , "UInt", fccType   ; DWORD
    , "UInt", fccHandler   ; DWORD
    , "UInt", wMode   ; DWORD
    , "Ptr")   ; return: HIC

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