CoCreateGuid

関数

一意なGUIDを新規に生成する。

DLLOLE32.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

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

HRESULT CoCreateGuid(
    GUID* pguid
);

パラメーター

名前	型	方向
pguid	GUID*	out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT CoCreateGuid(
    GUID* pguid
);

[DllImport("OLE32.dll", ExactSpelling = true)]
static extern int CoCreateGuid(
    out Guid pguid   // GUID* out
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function CoCreateGuid(
    <Out> ByRef pguid As Guid   ' GUID* out
) As Integer
End Function

' pguid : GUID* out
Declare PtrSafe Function CoCreateGuid Lib "ole32" ( _
    ByVal pguid 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

CoCreateGuid = ctypes.windll.ole32.CoCreateGuid
CoCreateGuid.restype = ctypes.c_int
CoCreateGuid.argtypes = [
    ctypes.c_void_p,  # pguid : GUID* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
CoCreateGuid = Fiddle::Function.new(
  lib['CoCreateGuid'],
  [
    Fiddle::TYPE_VOIDP,  # pguid : GUID* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn CoCreateGuid(
        pguid: *mut GUID  // GUID* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int CoCreateGuid(out Guid pguid);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_CoCreateGuid' -Namespace Win32 -PassThru
# $api::CoCreateGuid(pguid)

#uselib "OLE32.dll"
#func global CoCreateGuid "CoCreateGuid" sptr
; CoCreateGuid varptr(pguid)   ; 戻り値は stat
; pguid : GUID* 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。

出力引数:

#uselib "OLE32.dll"
#cfunc global CoCreateGuid "CoCreateGuid" var
; res = CoCreateGuid(pguid)
; pguid : GUID* 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。#uselib "OLE32.dll"
#cfunc global CoCreateGuid "CoCreateGuid" sptr
; res = CoCreateGuid(varptr(pguid))
; pguid : GUID* out -> "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 CoCreateGuid(GUID* pguid)
#uselib "OLE32.dll"
#cfunc global CoCreateGuid "CoCreateGuid" var
; res = CoCreateGuid(pguid)
; pguid : GUID* 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。; HRESULT CoCreateGuid(GUID* pguid)
#uselib "OLE32.dll"
#cfunc global CoCreateGuid "CoCreateGuid" intptr
; res = CoCreateGuid(varptr(pguid))
; pguid : GUID* out -> "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")
	procCoCreateGuid = ole32.NewProc("CoCreateGuid")
)

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

function CoCreateGuid(
  pguid: PGUID   // GUID* out
): Integer; stdcall;
  external 'OLE32.dll' name 'CoCreateGuid';

result := DllCall("OLE32\CoCreateGuid"
    , "Ptr", pguid   ; GUID* out
    , "Int")   ; return: HRESULT

●CoCreateGuid(pguid) = DLL("OLE32.dll", "int CoCreateGuid(void*)")
# 呼び出し: CoCreateGuid(pguid)
# pguid : GUID* 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)。