Win32 API 日本語リファレンス
ホームDevices.Usb › WinUsb_WriteIsochPipeAsap

WinUsb_WriteIsochPipeAsap

関数
可能な限り早いフレームでアイソクロナスパイプへ書き込む。
DLLWINUSB.dll呼出規約winapiSetLastErrorあり対応OSWindows 8.1 以降

シグネチャ

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

BOOL WinUsb_WriteIsochPipeAsap(
    void* BufferHandle,
    DWORD Offset,
    DWORD Length,
    BOOL ContinueStream,
    OVERLAPPED* Overlapped   // optional
);

パラメーター

名前方向説明
BufferHandlevoid*in登録済みのアイソクロナスバッファハンドル。
OffsetDWORDin書き込み開始位置のバッファ先頭からのバイトオフセット。
LengthDWORDin書き込むバイト数。
ContinueStreamBOOLin直前のストリームを継続するならTRUE、新規開始ならFALSE。
OverlappedOVERLAPPED*inoptional非同期I/O用のOVERLAPPED構造体へのポインタ。

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL WinUsb_WriteIsochPipeAsap(
    void* BufferHandle,
    DWORD Offset,
    DWORD Length,
    BOOL ContinueStream,
    OVERLAPPED* Overlapped   // optional
);
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WINUSB.dll", SetLastError = true, ExactSpelling = true)]
static extern bool WinUsb_WriteIsochPipeAsap(
    IntPtr BufferHandle,   // void*
    uint Offset,   // DWORD
    uint Length,   // DWORD
    bool ContinueStream,   // BOOL
    IntPtr Overlapped   // OVERLAPPED* optional
);
<DllImport("WINUSB.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WinUsb_WriteIsochPipeAsap(
    BufferHandle As IntPtr,   ' void*
    Offset As UInteger,   ' DWORD
    Length As UInteger,   ' DWORD
    ContinueStream As Boolean,   ' BOOL
    Overlapped As IntPtr   ' OVERLAPPED* optional
) As Boolean
End Function
' BufferHandle : void*
' Offset : DWORD
' Length : DWORD
' ContinueStream : BOOL
' Overlapped : OVERLAPPED* optional
Declare PtrSafe Function WinUsb_WriteIsochPipeAsap Lib "winusb" ( _
    ByVal BufferHandle As LongPtr, _
    ByVal Offset As Long, _
    ByVal Length As Long, _
    ByVal ContinueStream As Long, _
    ByVal Overlapped 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

WinUsb_WriteIsochPipeAsap = ctypes.windll.winusb.WinUsb_WriteIsochPipeAsap
WinUsb_WriteIsochPipeAsap.restype = wintypes.BOOL
WinUsb_WriteIsochPipeAsap.argtypes = [
    ctypes.POINTER(None),  # BufferHandle : void*
    wintypes.DWORD,  # Offset : DWORD
    wintypes.DWORD,  # Length : DWORD
    wintypes.BOOL,  # ContinueStream : BOOL
    ctypes.c_void_p,  # Overlapped : OVERLAPPED* optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINUSB.dll')
WinUsb_WriteIsochPipeAsap = Fiddle::Function.new(
  lib['WinUsb_WriteIsochPipeAsap'],
  [
    Fiddle::TYPE_VOIDP,  # BufferHandle : void*
    -Fiddle::TYPE_INT,  # Offset : DWORD
    -Fiddle::TYPE_INT,  # Length : DWORD
    Fiddle::TYPE_INT,  # ContinueStream : BOOL
    Fiddle::TYPE_VOIDP,  # Overlapped : OVERLAPPED* optional
  ],
  Fiddle::TYPE_INT)
#[link(name = "winusb")]
extern "system" {
    fn WinUsb_WriteIsochPipeAsap(
        BufferHandle: *mut (),  // void*
        Offset: u32,  // DWORD
        Length: u32,  // DWORD
        ContinueStream: i32,  // BOOL
        Overlapped: *mut OVERLAPPED  // OVERLAPPED* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WINUSB.dll", SetLastError = true)]
public static extern bool WinUsb_WriteIsochPipeAsap(IntPtr BufferHandle, uint Offset, uint Length, bool ContinueStream, IntPtr Overlapped);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINUSB_WinUsb_WriteIsochPipeAsap' -Namespace Win32 -PassThru
# $api::WinUsb_WriteIsochPipeAsap(BufferHandle, Offset, Length, ContinueStream, Overlapped)
#uselib "WINUSB.dll"
#func global WinUsb_WriteIsochPipeAsap "WinUsb_WriteIsochPipeAsap" sptr, sptr, sptr, sptr, sptr
; WinUsb_WriteIsochPipeAsap BufferHandle, Offset, Length, ContinueStream, varptr(Overlapped)   ; 戻り値は stat
; BufferHandle : void* -> "sptr"
; Offset : DWORD -> "sptr"
; Length : DWORD -> "sptr"
; ContinueStream : BOOL -> "sptr"
; Overlapped : OVERLAPPED* optional -> "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 "WINUSB.dll"
#cfunc global WinUsb_WriteIsochPipeAsap "WinUsb_WriteIsochPipeAsap" sptr, int, int, int, var
; res = WinUsb_WriteIsochPipeAsap(BufferHandle, Offset, Length, ContinueStream, Overlapped)
; BufferHandle : void* -> "sptr"
; Offset : DWORD -> "int"
; Length : DWORD -> "int"
; ContinueStream : BOOL -> "int"
; Overlapped : OVERLAPPED* optional -> "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:
; BOOL WinUsb_WriteIsochPipeAsap(void* BufferHandle, DWORD Offset, DWORD Length, BOOL ContinueStream, OVERLAPPED* Overlapped)
#uselib "WINUSB.dll"
#cfunc global WinUsb_WriteIsochPipeAsap "WinUsb_WriteIsochPipeAsap" intptr, int, int, int, var
; res = WinUsb_WriteIsochPipeAsap(BufferHandle, Offset, Length, ContinueStream, Overlapped)
; BufferHandle : void* -> "intptr"
; Offset : DWORD -> "int"
; Length : DWORD -> "int"
; ContinueStream : BOOL -> "int"
; Overlapped : OVERLAPPED* optional -> "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 (
	winusb = windows.NewLazySystemDLL("WINUSB.dll")
	procWinUsb_WriteIsochPipeAsap = winusb.NewProc("WinUsb_WriteIsochPipeAsap")
)

// BufferHandle (void*), Offset (DWORD), Length (DWORD), ContinueStream (BOOL), Overlapped (OVERLAPPED* optional)
r1, _, err := procWinUsb_WriteIsochPipeAsap.Call(
	uintptr(BufferHandle),
	uintptr(Offset),
	uintptr(Length),
	uintptr(ContinueStream),
	uintptr(Overlapped),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL
function WinUsb_WriteIsochPipeAsap(
  BufferHandle: Pointer;   // void*
  Offset: DWORD;   // DWORD
  Length: DWORD;   // DWORD
  ContinueStream: BOOL;   // BOOL
  Overlapped: Pointer   // OVERLAPPED* optional
): BOOL; stdcall;
  external 'WINUSB.dll' name 'WinUsb_WriteIsochPipeAsap';
result := DllCall("WINUSB\WinUsb_WriteIsochPipeAsap"
    , "Ptr", BufferHandle   ; void*
    , "UInt", Offset   ; DWORD
    , "UInt", Length   ; DWORD
    , "Int", ContinueStream   ; BOOL
    , "Ptr", Overlapped   ; OVERLAPPED* optional
    , "Int")   ; return: BOOL
●WinUsb_WriteIsochPipeAsap(BufferHandle, Offset, Length, ContinueStream, Overlapped) = DLL("WINUSB.dll", "bool WinUsb_WriteIsochPipeAsap(void*, dword, dword, bool, void*)")
# 呼び出し: WinUsb_WriteIsochPipeAsap(BufferHandle, Offset, Length, ContinueStream, Overlapped)
# BufferHandle : void* -> "void*"
# Offset : DWORD -> "dword"
# Length : DWORD -> "dword"
# ContinueStream : BOOL -> "bool"
# Overlapped : OVERLAPPED* optional -> "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)。