Win32 API 日本語リファレンス
ホームDevices.AllJoyn › alljoyn_msgarg_get_string

alljoyn_msgarg_get_string

関数
メッセージ引数から文字列値を取得する。
DLLMSAJApi.dll呼出規約winapi

シグネチャ

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

QStatus alljoyn_msgarg_get_string(
    alljoyn_msgarg arg,
    CHAR** s
);

パラメーター

名前方向
argalljoyn_msgargin
sCHAR**inout

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_string(
    alljoyn_msgarg arg,
    CHAR** s
);
[DllImport("MSAJApi.dll", ExactSpelling = true)]
static extern int alljoyn_msgarg_get_string(
    IntPtr arg,   // alljoyn_msgarg
    IntPtr s   // CHAR** in/out
);
<DllImport("MSAJApi.dll", ExactSpelling:=True)>
Public Shared Function alljoyn_msgarg_get_string(
    arg As IntPtr,   ' alljoyn_msgarg
    s As IntPtr   ' CHAR** in/out
) As Integer
End Function
' arg : alljoyn_msgarg
' s : CHAR** in/out
Declare PtrSafe Function alljoyn_msgarg_get_string Lib "msajapi" ( _
    ByVal arg As LongPtr, _
    ByVal s 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

alljoyn_msgarg_get_string = ctypes.windll.msajapi.alljoyn_msgarg_get_string
alljoyn_msgarg_get_string.restype = ctypes.c_int
alljoyn_msgarg_get_string.argtypes = [
    ctypes.c_ssize_t,  # arg : alljoyn_msgarg
    ctypes.c_void_p,  # s : CHAR** in/out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSAJApi.dll')
alljoyn_msgarg_get_string = Fiddle::Function.new(
  lib['alljoyn_msgarg_get_string'],
  [
    Fiddle::TYPE_INTPTR_T,  # arg : alljoyn_msgarg
    Fiddle::TYPE_VOIDP,  # s : CHAR** in/out
  ],
  Fiddle::TYPE_INT)
#[link(name = "msajapi")]
extern "system" {
    fn alljoyn_msgarg_get_string(
        arg: isize,  // alljoyn_msgarg
        s: *mut *mut i8  // CHAR** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("MSAJApi.dll")]
public static extern int alljoyn_msgarg_get_string(IntPtr arg, IntPtr s);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSAJApi_alljoyn_msgarg_get_string' -Namespace Win32 -PassThru
# $api::alljoyn_msgarg_get_string(arg, s)
#uselib "MSAJApi.dll"
#func global alljoyn_msgarg_get_string "alljoyn_msgarg_get_string" sptr, sptr
; alljoyn_msgarg_get_string arg, varptr(s)   ; 戻り値は stat
; arg : alljoyn_msgarg -> "sptr"
; s : CHAR** 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_string "alljoyn_msgarg_get_string" sptr, var
; res = alljoyn_msgarg_get_string(arg, s)
; arg : alljoyn_msgarg -> "sptr"
; s : CHAR** 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。
出力引数:
; QStatus alljoyn_msgarg_get_string(alljoyn_msgarg arg, CHAR** s)
#uselib "MSAJApi.dll"
#cfunc global alljoyn_msgarg_get_string "alljoyn_msgarg_get_string" intptr, var
; res = alljoyn_msgarg_get_string(arg, s)
; arg : alljoyn_msgarg -> "intptr"
; s : CHAR** 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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	msajapi = windows.NewLazySystemDLL("MSAJApi.dll")
	procalljoyn_msgarg_get_string = msajapi.NewProc("alljoyn_msgarg_get_string")
)

// arg (alljoyn_msgarg), s (CHAR** in/out)
r1, _, err := procalljoyn_msgarg_get_string.Call(
	uintptr(arg),
	uintptr(s),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // QStatus
function alljoyn_msgarg_get_string(
  arg: NativeInt;   // alljoyn_msgarg
  s: Pointer   // CHAR** in/out
): Integer; stdcall;
  external 'MSAJApi.dll' name 'alljoyn_msgarg_get_string';
result := DllCall("MSAJApi\alljoyn_msgarg_get_string"
    , "Ptr", arg   ; alljoyn_msgarg
    , "Ptr", s   ; CHAR** in/out
    , "Int")   ; return: QStatus
●alljoyn_msgarg_get_string(arg, s) = DLL("MSAJApi.dll", "int alljoyn_msgarg_get_string(int, void*)")
# 呼び出し: alljoyn_msgarg_get_string(arg, s)
# arg : alljoyn_msgarg -> "int"
# s : CHAR** 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)。