ホーム › Devices.AllJoyn › alljoyn_msgarg_get_double

alljoyn_msgarg_get_double

関数

メッセージ引数からdouble型の値を取得する。

DLLMSAJApi.dll呼出規約winapi

シグネチャ

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

QStatus alljoyn_msgarg_get_double(
    alljoyn_msgarg arg,
    DOUBLE* d
);

パラメーター

名前	型	方向	説明
arg	alljoyn_msgarg	in	値を取り出す対象のメッセージ引数ハンドル。型は'd'である必要がある。
d	DOUBLE*	inout	取得した倍精度浮動小数点値を書き込む出力ポインタ。

戻り値の型: QStatus

各言語での呼び出し定義

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

QStatus alljoyn_msgarg_get_double(
    alljoyn_msgarg arg,
    DOUBLE* d
);

[DllImport("MSAJApi.dll", ExactSpelling = true)]
static extern int alljoyn_msgarg_get_double(
    IntPtr arg,   // alljoyn_msgarg
    ref double d   // DOUBLE* in/out
);

<DllImport("MSAJApi.dll", ExactSpelling:=True)>
Public Shared Function alljoyn_msgarg_get_double(
    arg As IntPtr,   ' alljoyn_msgarg
    ByRef d As Double   ' DOUBLE* in/out
) As Integer
End Function

' arg : alljoyn_msgarg
' d : DOUBLE* in/out
Declare PtrSafe Function alljoyn_msgarg_get_double Lib "msajapi" ( _
    ByVal arg As LongPtr, _
    ByRef d As Double) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

alljoyn_msgarg_get_double = ctypes.windll.msajapi.alljoyn_msgarg_get_double
alljoyn_msgarg_get_double.restype = ctypes.c_int
alljoyn_msgarg_get_double.argtypes = [
    ctypes.c_ssize_t,  # arg : alljoyn_msgarg
    ctypes.POINTER(ctypes.c_double),  # d : DOUBLE* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSAJApi.dll')
alljoyn_msgarg_get_double = Fiddle::Function.new(
  lib['alljoyn_msgarg_get_double'],
  [
    Fiddle::TYPE_INTPTR_T,  # arg : alljoyn_msgarg
    Fiddle::TYPE_VOIDP,  # d : DOUBLE* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msajapi")]
extern "system" {
    fn alljoyn_msgarg_get_double(
        arg: isize,  // alljoyn_msgarg
        d: *mut f64  // DOUBLE* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MSAJApi.dll")]
public static extern int alljoyn_msgarg_get_double(IntPtr arg, ref double d);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSAJApi_alljoyn_msgarg_get_double' -Namespace Win32 -PassThru
# $api::alljoyn_msgarg_get_double(arg, d)

#uselib "MSAJApi.dll"
#func global alljoyn_msgarg_get_double "alljoyn_msgarg_get_double" sptr, sptr
; alljoyn_msgarg_get_double arg, varptr(d)   ; 戻り値は stat
; arg : alljoyn_msgarg -> "sptr"
; d : DOUBLE* 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 "MSAJApi.dll"
#cfunc global alljoyn_msgarg_get_double "alljoyn_msgarg_get_double" sptr, var
; res = alljoyn_msgarg_get_double(arg, d)
; arg : alljoyn_msgarg -> "sptr"
; d : DOUBLE* 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 "MSAJApi.dll"
#cfunc global alljoyn_msgarg_get_double "alljoyn_msgarg_get_double" sptr, sptr
; res = alljoyn_msgarg_get_double(arg, varptr(d))
; arg : alljoyn_msgarg -> "sptr"
; d : DOUBLE* 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:

; QStatus alljoyn_msgarg_get_double(alljoyn_msgarg arg, DOUBLE* d)
#uselib "MSAJApi.dll"
#cfunc global alljoyn_msgarg_get_double "alljoyn_msgarg_get_double" intptr, var
; res = alljoyn_msgarg_get_double(arg, d)
; arg : alljoyn_msgarg -> "intptr"
; d : DOUBLE* 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。; QStatus alljoyn_msgarg_get_double(alljoyn_msgarg arg, DOUBLE* d)
#uselib "MSAJApi.dll"
#cfunc global alljoyn_msgarg_get_double "alljoyn_msgarg_get_double" intptr, intptr
; res = alljoyn_msgarg_get_double(arg, varptr(d))
; arg : alljoyn_msgarg -> "intptr"
; d : DOUBLE* 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 (
	msajapi = windows.NewLazySystemDLL("MSAJApi.dll")
	procalljoyn_msgarg_get_double = msajapi.NewProc("alljoyn_msgarg_get_double")
)

// arg (alljoyn_msgarg), d (DOUBLE* in/out)
r1, _, err := procalljoyn_msgarg_get_double.Call(
	uintptr(arg),
	uintptr(d),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // QStatus

function alljoyn_msgarg_get_double(
  arg: NativeInt;   // alljoyn_msgarg
  d: Pointer   // DOUBLE* in/out
): Integer; stdcall;
  external 'MSAJApi.dll' name 'alljoyn_msgarg_get_double';

result := DllCall("MSAJApi\alljoyn_msgarg_get_double"
    , "Ptr", arg   ; alljoyn_msgarg
    , "Ptr", d   ; DOUBLE* in/out
    , "Int")   ; return: QStatus

●alljoyn_msgarg_get_double(arg, d) = DLL("MSAJApi.dll", "int alljoyn_msgarg_get_double(int, void*)")
# 呼び出し: alljoyn_msgarg_get_double(arg, d)
# arg : alljoyn_msgarg -> "int"
# d : DOUBLE* 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)。