FindExecutableA

関数

ファイル(ANSI)に関連付けられた実行ファイルを検索する。

DLLSHELL32.dll文字セットANSI (-A)呼出規約winapi対応OSWindows XP 以降

シグネチャ

// SHELL32.dll  (ANSI / -A)
#include <windows.h>

HINSTANCE FindExecutableA(
    LPCSTR lpFile,
    LPCSTR lpDirectory,   // optional
    LPSTR lpResult
);

パラメーター

名前	型	方向
lpFile	LPCSTR	in
lpDirectory	LPCSTR	inoptional
lpResult	LPSTR	out

戻り値の型: HINSTANCE

各言語での呼び出し定義

// SHELL32.dll  (ANSI / -A)
#include <windows.h>

HINSTANCE FindExecutableA(
    LPCSTR lpFile,
    LPCSTR lpDirectory,   // optional
    LPSTR lpResult
);

[DllImport("SHELL32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern IntPtr FindExecutableA(
    [MarshalAs(UnmanagedType.LPStr)] string lpFile,   // LPCSTR
    [MarshalAs(UnmanagedType.LPStr)] string lpDirectory,   // LPCSTR optional
    [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpResult   // LPSTR out
);

<DllImport("SHELL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function FindExecutableA(
    <MarshalAs(UnmanagedType.LPStr)> lpFile As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> lpDirectory As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpResult As System.Text.StringBuilder   ' LPSTR out
) As IntPtr
End Function

' lpFile : LPCSTR
' lpDirectory : LPCSTR optional
' lpResult : LPSTR out
Declare PtrSafe Function FindExecutableA Lib "shell32" ( _
    ByVal lpFile As String, _
    ByVal lpDirectory As String, _
    ByVal lpResult As String) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

FindExecutableA = ctypes.windll.shell32.FindExecutableA
FindExecutableA.restype = ctypes.c_void_p
FindExecutableA.argtypes = [
    wintypes.LPCSTR,  # lpFile : LPCSTR
    wintypes.LPCSTR,  # lpDirectory : LPCSTR optional
    wintypes.LPSTR,  # lpResult : LPSTR out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
FindExecutableA = Fiddle::Function.new(
  lib['FindExecutableA'],
  [
    Fiddle::TYPE_VOIDP,  # lpFile : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpDirectory : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpResult : LPSTR out
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "shell32")]
extern "system" {
    fn FindExecutableA(
        lpFile: *const u8,  // LPCSTR
        lpDirectory: *const u8,  // LPCSTR optional
        lpResult: *mut u8  // LPSTR out
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHELL32.dll", CharSet = CharSet.Ansi)]
public static extern IntPtr FindExecutableA([MarshalAs(UnmanagedType.LPStr)] string lpFile, [MarshalAs(UnmanagedType.LPStr)] string lpDirectory, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpResult);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_FindExecutableA' -Namespace Win32 -PassThru
# $api::FindExecutableA(lpFile, lpDirectory, lpResult)

#uselib "SHELL32.dll"
#func global FindExecutableA "FindExecutableA" sptr, sptr, sptr
; FindExecutableA lpFile, lpDirectory, varptr(lpResult)   ; 戻り値は stat
; lpFile : LPCSTR -> "sptr"
; lpDirectory : LPCSTR optional -> "sptr"
; lpResult : LPSTR 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 "SHELL32.dll"
#cfunc global FindExecutableA "FindExecutableA" str, str, var
; res = FindExecutableA(lpFile, lpDirectory, lpResult)
; lpFile : LPCSTR -> "str"
; lpDirectory : LPCSTR optional -> "str"
; lpResult : LPSTR 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 "SHELL32.dll"
#cfunc global FindExecutableA "FindExecutableA" str, str, sptr
; res = FindExecutableA(lpFile, lpDirectory, varptr(lpResult))
; lpFile : LPCSTR -> "str"
; lpDirectory : LPCSTR optional -> "str"
; lpResult : LPSTR 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:

; HINSTANCE FindExecutableA(LPCSTR lpFile, LPCSTR lpDirectory, LPSTR lpResult)
#uselib "SHELL32.dll"
#cfunc global FindExecutableA "FindExecutableA" str, str, var
; res = FindExecutableA(lpFile, lpDirectory, lpResult)
; lpFile : LPCSTR -> "str"
; lpDirectory : LPCSTR optional -> "str"
; lpResult : LPSTR 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。; HINSTANCE FindExecutableA(LPCSTR lpFile, LPCSTR lpDirectory, LPSTR lpResult)
#uselib "SHELL32.dll"
#cfunc global FindExecutableA "FindExecutableA" str, str, intptr
; res = FindExecutableA(lpFile, lpDirectory, varptr(lpResult))
; lpFile : LPCSTR -> "str"
; lpDirectory : LPCSTR optional -> "str"
; lpResult : LPSTR 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 (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procFindExecutableA = shell32.NewProc("FindExecutableA")
)

// lpFile (LPCSTR), lpDirectory (LPCSTR optional), lpResult (LPSTR out)
r1, _, err := procFindExecutableA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpFile))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpDirectory))),
	uintptr(lpResult),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HINSTANCE

function FindExecutableA(
  lpFile: PAnsiChar;   // LPCSTR
  lpDirectory: PAnsiChar;   // LPCSTR optional
  lpResult: PAnsiChar   // LPSTR out
): THandle; stdcall;
  external 'SHELL32.dll' name 'FindExecutableA';

result := DllCall("SHELL32\FindExecutableA"
    , "AStr", lpFile   ; LPCSTR
    , "AStr", lpDirectory   ; LPCSTR optional
    , "Ptr", lpResult   ; LPSTR out
    , "Ptr")   ; return: HINSTANCE

●FindExecutableA(lpFile, lpDirectory, lpResult) = DLL("SHELL32.dll", "void* FindExecutableA(char*, char*, char*)")
# 呼び出し: FindExecutableA(lpFile, lpDirectory, lpResult)
# lpFile : LPCSTR -> "char*"
# lpDirectory : LPCSTR optional -> "char*"
# lpResult : LPSTR out -> "char*"
# 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)。