ホーム › Devices.DeviceAndDriverInstallation › SetupGetFileQueueCount

SetupGetFileQueueCount

関数

ファイルキュー内の指定操作の件数を取得する。

DLLSETUPAPI.dll呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

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

BOOL SetupGetFileQueueCount(
    void* FileQueue,
    DWORD SubQueueFileOp,
    DWORD* NumOperations
);

パラメーター

名前	型	方向
FileQueue	void*	in
SubQueueFileOp	DWORD	in
NumOperations	DWORD*	out

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL SetupGetFileQueueCount(
    void* FileQueue,
    DWORD SubQueueFileOp,
    DWORD* NumOperations
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", SetLastError = true, ExactSpelling = true)]
static extern bool SetupGetFileQueueCount(
    IntPtr FileQueue,   // void*
    uint SubQueueFileOp,   // DWORD
    out uint NumOperations   // DWORD* out
);

<DllImport("SETUPAPI.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupGetFileQueueCount(
    FileQueue As IntPtr,   ' void*
    SubQueueFileOp As UInteger,   ' DWORD
    <Out> ByRef NumOperations As UInteger   ' DWORD* out
) As Boolean
End Function

' FileQueue : void*
' SubQueueFileOp : DWORD
' NumOperations : DWORD* out
Declare PtrSafe Function SetupGetFileQueueCount Lib "setupapi" ( _
    ByVal FileQueue As LongPtr, _
    ByVal SubQueueFileOp As Long, _
    ByRef NumOperations 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

SetupGetFileQueueCount = ctypes.windll.setupapi.SetupGetFileQueueCount
SetupGetFileQueueCount.restype = wintypes.BOOL
SetupGetFileQueueCount.argtypes = [
    ctypes.POINTER(None),  # FileQueue : void*
    wintypes.DWORD,  # SubQueueFileOp : DWORD
    ctypes.POINTER(wintypes.DWORD),  # NumOperations : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupGetFileQueueCount = Fiddle::Function.new(
  lib['SetupGetFileQueueCount'],
  [
    Fiddle::TYPE_VOIDP,  # FileQueue : void*
    -Fiddle::TYPE_INT,  # SubQueueFileOp : DWORD
    Fiddle::TYPE_VOIDP,  # NumOperations : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "setupapi")]
extern "system" {
    fn SetupGetFileQueueCount(
        FileQueue: *mut (),  // void*
        SubQueueFileOp: u32,  // DWORD
        NumOperations: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", SetLastError = true)]
public static extern bool SetupGetFileQueueCount(IntPtr FileQueue, uint SubQueueFileOp, out uint NumOperations);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupGetFileQueueCount' -Namespace Win32 -PassThru
# $api::SetupGetFileQueueCount(FileQueue, SubQueueFileOp, NumOperations)

#uselib "SETUPAPI.dll"
#func global SetupGetFileQueueCount "SetupGetFileQueueCount" sptr, sptr, sptr
; SetupGetFileQueueCount FileQueue, SubQueueFileOp, varptr(NumOperations)   ; 戻り値は stat
; FileQueue : void* -> "sptr"
; SubQueueFileOp : DWORD -> "sptr"
; NumOperations : DWORD* 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 "SETUPAPI.dll"
#cfunc global SetupGetFileQueueCount "SetupGetFileQueueCount" sptr, int, var
; res = SetupGetFileQueueCount(FileQueue, SubQueueFileOp, NumOperations)
; FileQueue : void* -> "sptr"
; SubQueueFileOp : DWORD -> "int"
; NumOperations : DWORD* 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 "SETUPAPI.dll"
#cfunc global SetupGetFileQueueCount "SetupGetFileQueueCount" sptr, int, sptr
; res = SetupGetFileQueueCount(FileQueue, SubQueueFileOp, varptr(NumOperations))
; FileQueue : void* -> "sptr"
; SubQueueFileOp : DWORD -> "int"
; NumOperations : DWORD* 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 SetupGetFileQueueCount(void* FileQueue, DWORD SubQueueFileOp, DWORD* NumOperations)
#uselib "SETUPAPI.dll"
#cfunc global SetupGetFileQueueCount "SetupGetFileQueueCount" intptr, int, var
; res = SetupGetFileQueueCount(FileQueue, SubQueueFileOp, NumOperations)
; FileQueue : void* -> "intptr"
; SubQueueFileOp : DWORD -> "int"
; NumOperations : DWORD* 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 SetupGetFileQueueCount(void* FileQueue, DWORD SubQueueFileOp, DWORD* NumOperations)
#uselib "SETUPAPI.dll"
#cfunc global SetupGetFileQueueCount "SetupGetFileQueueCount" intptr, int, intptr
; res = SetupGetFileQueueCount(FileQueue, SubQueueFileOp, varptr(NumOperations))
; FileQueue : void* -> "intptr"
; SubQueueFileOp : DWORD -> "int"
; NumOperations : DWORD* 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 (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupGetFileQueueCount = setupapi.NewProc("SetupGetFileQueueCount")
)

// FileQueue (void*), SubQueueFileOp (DWORD), NumOperations (DWORD* out)
r1, _, err := procSetupGetFileQueueCount.Call(
	uintptr(FileQueue),
	uintptr(SubQueueFileOp),
	uintptr(NumOperations),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetupGetFileQueueCount(
  FileQueue: Pointer;   // void*
  SubQueueFileOp: DWORD;   // DWORD
  NumOperations: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupGetFileQueueCount';

result := DllCall("SETUPAPI\SetupGetFileQueueCount"
    , "Ptr", FileQueue   ; void*
    , "UInt", SubQueueFileOp   ; DWORD
    , "Ptr", NumOperations   ; DWORD* out
    , "Int")   ; return: BOOL

●SetupGetFileQueueCount(FileQueue, SubQueueFileOp, NumOperations) = DLL("SETUPAPI.dll", "bool SetupGetFileQueueCount(void*, dword, void*)")
# 呼び出し: SetupGetFileQueueCount(FileQueue, SubQueueFileOp, NumOperations)
# FileQueue : void* -> "void*"
# SubQueueFileOp : DWORD -> "dword"
# NumOperations : DWORD* 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)。