CoTreatAsClass

関数

あるCLSIDを別のCLSIDとして扱うエミュレーションを設定する。

DLLOLE32.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

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

HRESULT CoTreatAsClass(
    const GUID* clsidOld,
    const GUID* clsidNew
);

パラメーター

名前	型	方向
clsidOld	GUID*	in
clsidNew	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 CoTreatAsClass(
    const GUID* clsidOld,
    const GUID* clsidNew
);

[DllImport("OLE32.dll", ExactSpelling = true)]
static extern int CoTreatAsClass(
    ref Guid clsidOld,   // GUID*
    ref Guid clsidNew   // GUID*
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function CoTreatAsClass(
    ByRef clsidOld As Guid,   ' GUID*
    ByRef clsidNew As Guid   ' GUID*
) As Integer
End Function

' clsidOld : GUID*
' clsidNew : GUID*
Declare PtrSafe Function CoTreatAsClass Lib "ole32" ( _
    ByVal clsidOld As LongPtr, _
    ByVal clsidNew 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

CoTreatAsClass = ctypes.windll.ole32.CoTreatAsClass
CoTreatAsClass.restype = ctypes.c_int
CoTreatAsClass.argtypes = [
    ctypes.c_void_p,  # clsidOld : GUID*
    ctypes.c_void_p,  # clsidNew : GUID*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
CoTreatAsClass = Fiddle::Function.new(
  lib['CoTreatAsClass'],
  [
    Fiddle::TYPE_VOIDP,  # clsidOld : GUID*
    Fiddle::TYPE_VOIDP,  # clsidNew : GUID*
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn CoTreatAsClass(
        clsidOld: *const GUID,  // GUID*
        clsidNew: *const GUID  // GUID*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int CoTreatAsClass(ref Guid clsidOld, ref Guid clsidNew);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_CoTreatAsClass' -Namespace Win32 -PassThru
# $api::CoTreatAsClass(clsidOld, clsidNew)

#uselib "OLE32.dll"
#func global CoTreatAsClass "CoTreatAsClass" sptr, sptr
; CoTreatAsClass varptr(clsidOld), varptr(clsidNew)   ; 戻り値は stat
; clsidOld : GUID* -> "sptr"
; clsidNew : 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 CoTreatAsClass "CoTreatAsClass" var, var
; res = CoTreatAsClass(clsidOld, clsidNew)
; clsidOld : GUID* -> "var"
; clsidNew : 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 CoTreatAsClass "CoTreatAsClass" sptr, sptr
; res = CoTreatAsClass(varptr(clsidOld), varptr(clsidNew))
; clsidOld : GUID* -> "sptr"
; clsidNew : 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 CoTreatAsClass(GUID* clsidOld, GUID* clsidNew)
#uselib "OLE32.dll"
#cfunc global CoTreatAsClass "CoTreatAsClass" var, var
; res = CoTreatAsClass(clsidOld, clsidNew)
; clsidOld : GUID* -> "var"
; clsidNew : 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 CoTreatAsClass(GUID* clsidOld, GUID* clsidNew)
#uselib "OLE32.dll"
#cfunc global CoTreatAsClass "CoTreatAsClass" intptr, intptr
; res = CoTreatAsClass(varptr(clsidOld), varptr(clsidNew))
; clsidOld : GUID* -> "intptr"
; clsidNew : 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")
	procCoTreatAsClass = ole32.NewProc("CoTreatAsClass")
)

// clsidOld (GUID*), clsidNew (GUID*)
r1, _, err := procCoTreatAsClass.Call(
	uintptr(clsidOld),
	uintptr(clsidNew),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CoTreatAsClass(
  clsidOld: PGUID;   // GUID*
  clsidNew: PGUID   // GUID*
): Integer; stdcall;
  external 'OLE32.dll' name 'CoTreatAsClass';

result := DllCall("OLE32\CoTreatAsClass"
    , "Ptr", clsidOld   ; GUID*
    , "Ptr", clsidNew   ; GUID*
    , "Int")   ; return: HRESULT

●CoTreatAsClass(clsidOld, clsidNew) = DLL("OLE32.dll", "int CoTreatAsClass(void*, void*)")
# 呼び出し: CoTreatAsClass(clsidOld, clsidNew)
# clsidOld : GUID* -> "void*"
# clsidNew : 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)。