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PropVariantToGUID

関数

PROPVARIANTをGUID値へ変換して取得する。

DLLPROPSYS.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

HRESULT PropVariantToGUID(
    const PROPVARIANT* propvar,
    GUID* pguid
);

パラメーター

名前	型	方向
propvar	PROPVARIANT*	in
pguid	GUID*	out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT PropVariantToGUID(
    const PROPVARIANT* propvar,
    GUID* pguid
);

[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern int PropVariantToGUID(
    IntPtr propvar,   // PROPVARIANT*
    out Guid pguid   // GUID* out
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function PropVariantToGUID(
    propvar As IntPtr,   ' PROPVARIANT*
    <Out> ByRef pguid As Guid   ' GUID* out
) As Integer
End Function

' propvar : PROPVARIANT*
' pguid : GUID* out
Declare PtrSafe Function PropVariantToGUID Lib "propsys" ( _
    ByVal propvar As LongPtr, _
    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

PropVariantToGUID = ctypes.windll.propsys.PropVariantToGUID
PropVariantToGUID.restype = ctypes.c_int
PropVariantToGUID.argtypes = [
    ctypes.c_void_p,  # propvar : PROPVARIANT*
    ctypes.c_void_p,  # pguid : GUID* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
PropVariantToGUID = Fiddle::Function.new(
  lib['PropVariantToGUID'],
  [
    Fiddle::TYPE_VOIDP,  # propvar : PROPVARIANT*
    Fiddle::TYPE_VOIDP,  # pguid : GUID* out
  ],
  Fiddle::TYPE_INT)

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

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int PropVariantToGUID(IntPtr propvar, out Guid pguid);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_PropVariantToGUID' -Namespace Win32 -PassThru
# $api::PropVariantToGUID(propvar, pguid)

#uselib "PROPSYS.dll"
#func global PropVariantToGUID "PropVariantToGUID" sptr, sptr
; PropVariantToGUID varptr(propvar), varptr(pguid)   ; 戻り値は stat
; propvar : PROPVARIANT* -> "sptr"
; 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 "PROPSYS.dll"
#cfunc global PropVariantToGUID "PropVariantToGUID" var, var
; res = PropVariantToGUID(propvar, pguid)
; propvar : PROPVARIANT* -> "var"
; 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 "PROPSYS.dll"
#cfunc global PropVariantToGUID "PropVariantToGUID" sptr, sptr
; res = PropVariantToGUID(varptr(propvar), varptr(pguid))
; propvar : PROPVARIANT* -> "sptr"
; 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 PropVariantToGUID(PROPVARIANT* propvar, GUID* pguid)
#uselib "PROPSYS.dll"
#cfunc global PropVariantToGUID "PropVariantToGUID" var, var
; res = PropVariantToGUID(propvar, pguid)
; propvar : PROPVARIANT* -> "var"
; 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 PropVariantToGUID(PROPVARIANT* propvar, GUID* pguid)
#uselib "PROPSYS.dll"
#cfunc global PropVariantToGUID "PropVariantToGUID" intptr, intptr
; res = PropVariantToGUID(varptr(propvar), varptr(pguid))
; propvar : PROPVARIANT* -> "intptr"
; 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 (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procPropVariantToGUID = propsys.NewProc("PropVariantToGUID")
)

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

function PropVariantToGUID(
  propvar: Pointer;   // PROPVARIANT*
  pguid: PGUID   // GUID* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'PropVariantToGUID';

result := DllCall("PROPSYS\PropVariantToGUID"
    , "Ptr", propvar   ; PROPVARIANT*
    , "Ptr", pguid   ; GUID* out
    , "Int")   ; return: HRESULT

●PropVariantToGUID(propvar, pguid) = DLL("PROPSYS.dll", "int PropVariantToGUID(void*, void*)")
# 呼び出し: PropVariantToGUID(propvar, pguid)
# propvar : PROPVARIANT* -> "void*"
# 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)。