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WriteClassStg

関数

ストレージにクラスIDを書き込む。

DLLOLE32.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

// OLE32.dll
#include <windows.h>

HRESULT WriteClassStg(
    IStorage* pStg,
    const GUID* rclsid
);

パラメーター

名前	型	方向
pStg	IStorage*	in
rclsid	GUID*	in

戻り値の型: HRESULT

各言語での呼び出し定義

// OLE32.dll
#include <windows.h>

HRESULT WriteClassStg(
    IStorage* pStg,
    const GUID* rclsid
);

[DllImport("OLE32.dll", ExactSpelling = true)]
static extern int WriteClassStg(
    IntPtr pStg,   // IStorage*
    ref Guid rclsid   // GUID*
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function WriteClassStg(
    pStg As IntPtr,   ' IStorage*
    ByRef rclsid As Guid   ' GUID*
) As Integer
End Function

' pStg : IStorage*
' rclsid : GUID*
Declare PtrSafe Function WriteClassStg Lib "ole32" ( _
    ByVal pStg As LongPtr, _
    ByVal rclsid 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

WriteClassStg = ctypes.windll.ole32.WriteClassStg
WriteClassStg.restype = ctypes.c_int
WriteClassStg.argtypes = [
    ctypes.c_void_p,  # pStg : IStorage*
    ctypes.c_void_p,  # rclsid : GUID*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
WriteClassStg = Fiddle::Function.new(
  lib['WriteClassStg'],
  [
    Fiddle::TYPE_VOIDP,  # pStg : IStorage*
    Fiddle::TYPE_VOIDP,  # rclsid : GUID*
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn WriteClassStg(
        pStg: *mut core::ffi::c_void,  // IStorage*
        rclsid: *const GUID  // GUID*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int WriteClassStg(IntPtr pStg, ref Guid rclsid);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_WriteClassStg' -Namespace Win32 -PassThru
# $api::WriteClassStg(pStg, rclsid)

#uselib "OLE32.dll"
#func global WriteClassStg "WriteClassStg" sptr, sptr
; WriteClassStg pStg, varptr(rclsid)   ; 戻り値は stat
; pStg : IStorage* -> "sptr"
; rclsid : GUID* -> "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。

出力引数:

#uselib "OLE32.dll"
#cfunc global WriteClassStg "WriteClassStg" sptr, var
; res = WriteClassStg(pStg, rclsid)
; pStg : IStorage* -> "sptr"
; rclsid : GUID* -> "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。#uselib "OLE32.dll"
#cfunc global WriteClassStg "WriteClassStg" sptr, sptr
; res = WriteClassStg(pStg, varptr(rclsid))
; pStg : IStorage* -> "sptr"
; rclsid : GUID* -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HRESULT WriteClassStg(IStorage* pStg, GUID* rclsid)
#uselib "OLE32.dll"
#cfunc global WriteClassStg "WriteClassStg" intptr, var
; res = WriteClassStg(pStg, rclsid)
; pStg : IStorage* -> "intptr"
; rclsid : GUID* -> "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 WriteClassStg(IStorage* pStg, GUID* rclsid)
#uselib "OLE32.dll"
#cfunc global WriteClassStg "WriteClassStg" intptr, intptr
; res = WriteClassStg(pStg, varptr(rclsid))
; pStg : IStorage* -> "intptr"
; rclsid : GUID* -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procWriteClassStg = ole32.NewProc("WriteClassStg")
)

// pStg (IStorage*), rclsid (GUID*)
r1, _, err := procWriteClassStg.Call(
	uintptr(pStg),
	uintptr(rclsid),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WriteClassStg(
  pStg: Pointer;   // IStorage*
  rclsid: PGUID   // GUID*
): Integer; stdcall;
  external 'OLE32.dll' name 'WriteClassStg';

result := DllCall("OLE32\WriteClassStg"
    , "Ptr", pStg   ; IStorage*
    , "Ptr", rclsid   ; GUID*
    , "Int")   ; return: HRESULT

●WriteClassStg(pStg, rclsid) = DLL("OLE32.dll", "int WriteClassStg(void*, void*)")
# 呼び出し: WriteClassStg(pStg, rclsid)
# pStg : IStorage* -> "void*"
# rclsid : GUID* -> "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)。