ucnv_usesFallback

関数

コンバーターがフォールバックを使用するか判定する。

DLLicuuc.dll呼出規約cdecl

シグネチャ

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

CHAR ucnv_usesFallback(
    const UConverter* cnv
);

パラメーター

名前	型	方向
cnv	UConverter*	in

戻り値の型: CHAR

各言語での呼び出し定義

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

CHAR ucnv_usesFallback(
    const UConverter* cnv
);

[DllImport("icuuc.dll", ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)]
static extern sbyte ucnv_usesFallback(
    ref IntPtr cnv   // UConverter*
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucnv_usesFallback(
    ByRef cnv As IntPtr   ' UConverter*
) As SByte
End Function

' cnv : UConverter*
Declare PtrSafe Function ucnv_usesFallback Lib "icuuc" ( _
    ByRef cnv As LongPtr) As Byte
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ucnv_usesFallback = ctypes.cdll.icuuc.ucnv_usesFallback
ucnv_usesFallback.restype = ctypes.c_byte
ucnv_usesFallback.argtypes = [
    ctypes.c_void_p,  # cnv : UConverter*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
ucnv_usesFallback = Fiddle::Function.new(
  lib['ucnv_usesFallback'],
  [
    Fiddle::TYPE_VOIDP,  # cnv : UConverter*
  ],
  Fiddle::TYPE_CHAR, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn ucnv_usesFallback(
        cnv: *const isize  // UConverter*
    ) -> i8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern sbyte ucnv_usesFallback(ref IntPtr cnv);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_ucnv_usesFallback' -Namespace Win32 -PassThru
# $api::ucnv_usesFallback(cnv)

#uselib "icuuc.dll"
#func global ucnv_usesFallback "ucnv_usesFallback" sptr
; ucnv_usesFallback cnv   ; 戻り値は stat
; cnv : UConverter* -> "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。

#uselib "icuuc.dll"
#cfunc global ucnv_usesFallback "ucnv_usesFallback" int
; res = ucnv_usesFallback(cnv)
; cnv : UConverter* -> "int"

; CHAR ucnv_usesFallback(UConverter* cnv)
#uselib "icuuc.dll"
#cfunc global ucnv_usesFallback "ucnv_usesFallback" int
; res = ucnv_usesFallback(cnv)
; cnv : UConverter* -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procucnv_usesFallback = icuuc.NewProc("ucnv_usesFallback")
)

// cnv (UConverter*)
r1, _, err := procucnv_usesFallback.Call(
	uintptr(cnv),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CHAR

function ucnv_usesFallback(
  cnv: Pointer   // UConverter*
): Shortint; cdecl;
  external 'icuuc.dll' name 'ucnv_usesFallback';

result := DllCall("icuuc\ucnv_usesFallback"
    , "Ptr", cnv   ; UConverter*
    , "Cdecl Char")   ; return: CHAR

●ucnv_usesFallback(cnv) = DLL("icuuc.dll", "char ucnv_usesFallback(void*)")
# 呼び出し: ucnv_usesFallback(cnv)
# cnv : UConverter* -> "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)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。