SHValidateUNC

関数

UNCパスの妥当性を検証し必要なら接続する。

DLLSHELL32.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

// SHELL32.dll
#include <windows.h>

BOOL SHValidateUNC(
    HWND hwndOwner,   // optional
    LPWSTR pszFile,
    DWORD fConnect
);

パラメーター

名前	型	方向
hwndOwner	HWND	inoptional
pszFile	LPWSTR	inout
fConnect	DWORD	in

戻り値の型: BOOL

各言語での呼び出し定義

// SHELL32.dll
#include <windows.h>

BOOL SHValidateUNC(
    HWND hwndOwner,   // optional
    LPWSTR pszFile,
    DWORD fConnect
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll", ExactSpelling = true)]
static extern bool SHValidateUNC(
    IntPtr hwndOwner,   // HWND optional
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszFile,   // LPWSTR in/out
    uint fConnect   // DWORD
);

<DllImport("SHELL32.dll", ExactSpelling:=True)>
Public Shared Function SHValidateUNC(
    hwndOwner As IntPtr,   ' HWND optional
    <MarshalAs(UnmanagedType.LPWStr)> pszFile As System.Text.StringBuilder,   ' LPWSTR in/out
    fConnect As UInteger   ' DWORD
) As Boolean
End Function

' hwndOwner : HWND optional
' pszFile : LPWSTR in/out
' fConnect : DWORD
Declare PtrSafe Function SHValidateUNC Lib "shell32" ( _
    ByVal hwndOwner As LongPtr, _
    ByVal pszFile As LongPtr, _
    ByVal fConnect As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SHValidateUNC = ctypes.windll.shell32.SHValidateUNC
SHValidateUNC.restype = wintypes.BOOL
SHValidateUNC.argtypes = [
    wintypes.HANDLE,  # hwndOwner : HWND optional
    wintypes.LPWSTR,  # pszFile : LPWSTR in/out
    wintypes.DWORD,  # fConnect : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SHValidateUNC = Fiddle::Function.new(
  lib['SHValidateUNC'],
  [
    Fiddle::TYPE_VOIDP,  # hwndOwner : HWND optional
    Fiddle::TYPE_VOIDP,  # pszFile : LPWSTR in/out
    -Fiddle::TYPE_INT,  # fConnect : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn SHValidateUNC(
        hwndOwner: *mut core::ffi::c_void,  // HWND optional
        pszFile: *mut u16,  // LPWSTR in/out
        fConnect: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll")]
public static extern bool SHValidateUNC(IntPtr hwndOwner, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszFile, uint fConnect);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SHValidateUNC' -Namespace Win32 -PassThru
# $api::SHValidateUNC(hwndOwner, pszFile, fConnect)

#uselib "SHELL32.dll"
#func global SHValidateUNC "SHValidateUNC" sptr, sptr, sptr
; SHValidateUNC hwndOwner, varptr(pszFile), fConnect   ; 戻り値は stat
; hwndOwner : HWND optional -> "sptr"
; pszFile : LPWSTR in/out -> "sptr"
; fConnect : 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。

出力引数:

#uselib "SHELL32.dll"
#cfunc global SHValidateUNC "SHValidateUNC" sptr, var, int
; res = SHValidateUNC(hwndOwner, pszFile, fConnect)
; hwndOwner : HWND optional -> "sptr"
; pszFile : LPWSTR in/out -> "var"
; fConnect : DWORD -> "int"
; ※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 "SHELL32.dll"
#cfunc global SHValidateUNC "SHValidateUNC" sptr, sptr, int
; res = SHValidateUNC(hwndOwner, varptr(pszFile), fConnect)
; hwndOwner : HWND optional -> "sptr"
; pszFile : LPWSTR in/out -> "sptr"
; fConnect : DWORD -> "int"
; ※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:

; BOOL SHValidateUNC(HWND hwndOwner, LPWSTR pszFile, DWORD fConnect)
#uselib "SHELL32.dll"
#cfunc global SHValidateUNC "SHValidateUNC" intptr, var, int
; res = SHValidateUNC(hwndOwner, pszFile, fConnect)
; hwndOwner : HWND optional -> "intptr"
; pszFile : LPWSTR in/out -> "var"
; fConnect : DWORD -> "int"
; ※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。; BOOL SHValidateUNC(HWND hwndOwner, LPWSTR pszFile, DWORD fConnect)
#uselib "SHELL32.dll"
#cfunc global SHValidateUNC "SHValidateUNC" intptr, intptr, int
; res = SHValidateUNC(hwndOwner, varptr(pszFile), fConnect)
; hwndOwner : HWND optional -> "intptr"
; pszFile : LPWSTR in/out -> "intptr"
; fConnect : DWORD -> "int"
; ※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 (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSHValidateUNC = shell32.NewProc("SHValidateUNC")
)

// hwndOwner (HWND optional), pszFile (LPWSTR in/out), fConnect (DWORD)
r1, _, err := procSHValidateUNC.Call(
	uintptr(hwndOwner),
	uintptr(pszFile),
	uintptr(fConnect),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SHValidateUNC(
  hwndOwner: THandle;   // HWND optional
  pszFile: PWideChar;   // LPWSTR in/out
  fConnect: DWORD   // DWORD
): BOOL; stdcall;
  external 'SHELL32.dll' name 'SHValidateUNC';

result := DllCall("SHELL32\SHValidateUNC"
    , "Ptr", hwndOwner   ; HWND optional
    , "Ptr", pszFile   ; LPWSTR in/out
    , "UInt", fConnect   ; DWORD
    , "Int")   ; return: BOOL

●SHValidateUNC(hwndOwner, pszFile, fConnect) = DLL("SHELL32.dll", "bool SHValidateUNC(void*, char*, dword)")
# 呼び出し: SHValidateUNC(hwndOwner, pszFile, fConnect)
# hwndOwner : HWND optional -> "void*"
# pszFile : LPWSTR in/out -> "char*"
# fConnect : 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)。