ホーム › UI.Accessibility › UiaGetErrorDescription

UiaGetErrorDescription

関数

直近のUIオートメーションエラーの説明文字列を取得する。

DLLUIAutomationCore.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

BOOL UiaGetErrorDescription(
    LPWSTR* pDescription
);

パラメーター

名前	型	方向
pDescription	LPWSTR*	inout

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL UiaGetErrorDescription(
    LPWSTR* pDescription
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("UIAutomationCore.dll", ExactSpelling = true)]
static extern bool UiaGetErrorDescription(
    IntPtr pDescription   // LPWSTR* in/out
);

<DllImport("UIAutomationCore.dll", ExactSpelling:=True)>
Public Shared Function UiaGetErrorDescription(
    pDescription As IntPtr   ' LPWSTR* in/out
) As Boolean
End Function

' pDescription : LPWSTR* in/out
Declare PtrSafe Function UiaGetErrorDescription Lib "uiautomationcore" ( _
    ByVal pDescription 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

UiaGetErrorDescription = ctypes.windll.uiautomationcore.UiaGetErrorDescription
UiaGetErrorDescription.restype = wintypes.BOOL
UiaGetErrorDescription.argtypes = [
    ctypes.c_void_p,  # pDescription : LPWSTR* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('UIAutomationCore.dll')
UiaGetErrorDescription = Fiddle::Function.new(
  lib['UiaGetErrorDescription'],
  [
    Fiddle::TYPE_VOIDP,  # pDescription : LPWSTR* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "uiautomationcore")]
extern "system" {
    fn UiaGetErrorDescription(
        pDescription: *mut *mut u16  // LPWSTR* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("UIAutomationCore.dll")]
public static extern bool UiaGetErrorDescription(IntPtr pDescription);
"@
$api = Add-Type -MemberDefinition $sig -Name 'UIAutomationCore_UiaGetErrorDescription' -Namespace Win32 -PassThru
# $api::UiaGetErrorDescription(pDescription)

#uselib "UIAutomationCore.dll"
#func global UiaGetErrorDescription "UiaGetErrorDescription" sptr
; UiaGetErrorDescription varptr(pDescription)   ; 戻り値は stat
; pDescription : LPWSTR* in/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 "UIAutomationCore.dll"
#cfunc global UiaGetErrorDescription "UiaGetErrorDescription" var
; res = UiaGetErrorDescription(pDescription)
; pDescription : LPWSTR* in/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 "UIAutomationCore.dll"
#cfunc global UiaGetErrorDescription "UiaGetErrorDescription" sptr
; res = UiaGetErrorDescription(varptr(pDescription))
; pDescription : LPWSTR* in/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:

; BOOL UiaGetErrorDescription(LPWSTR* pDescription)
#uselib "UIAutomationCore.dll"
#cfunc global UiaGetErrorDescription "UiaGetErrorDescription" var
; res = UiaGetErrorDescription(pDescription)
; pDescription : LPWSTR* in/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。; BOOL UiaGetErrorDescription(LPWSTR* pDescription)
#uselib "UIAutomationCore.dll"
#cfunc global UiaGetErrorDescription "UiaGetErrorDescription" intptr
; res = UiaGetErrorDescription(varptr(pDescription))
; pDescription : LPWSTR* in/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 (
	uiautomationcore = windows.NewLazySystemDLL("UIAutomationCore.dll")
	procUiaGetErrorDescription = uiautomationcore.NewProc("UiaGetErrorDescription")
)

// pDescription (LPWSTR* in/out)
r1, _, err := procUiaGetErrorDescription.Call(
	uintptr(pDescription),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function UiaGetErrorDescription(
  pDescription: PPWideChar   // LPWSTR* in/out
): BOOL; stdcall;
  external 'UIAutomationCore.dll' name 'UiaGetErrorDescription';

result := DllCall("UIAutomationCore\UiaGetErrorDescription"
    , "Ptr", pDescription   ; LPWSTR* in/out
    , "Int")   ; return: BOOL

●UiaGetErrorDescription(pDescription) = DLL("UIAutomationCore.dll", "bool UiaGetErrorDescription(void*)")
# 呼び出し: UiaGetErrorDescription(pDescription)
# pDescription : LPWSTR* in/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)。