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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。
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 | 型 | 方向 | 説明 |
|---|---|---|---|
| BufferHandle | void* | in | 登録済みのアイソクロナスバッファハンドル。 |
| Offset | DWORD | in | 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。 |
| Length | DWORD | in | 書き込むバイト数。 |
| ContinueStream | BOOL | in | 直前のストリームを継続するならTRUE、新規開始ならFALSE。 |
| Overlapped | OVERLAPPED* | 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。#uselib "WINUSB.dll" #cfunc global WinUsb_WriteIsochPipeAsap "WinUsb_WriteIsochPipeAsap" sptr, int, int, int, sptr ; res = WinUsb_WriteIsochPipeAsap(BufferHandle, Offset, Length, ContinueStream, varptr(Overlapped)) ; BufferHandle : void* -> "sptr" ; Offset : DWORD -> "int" ; Length : DWORD -> "int" ; ContinueStream : BOOL -> "int" ; Overlapped : OVERLAPPED* optional -> "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 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。; 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, intptr ; res = WinUsb_WriteIsochPipeAsap(BufferHandle, Offset, Length, ContinueStream, varptr(Overlapped)) ; BufferHandle : void* -> "intptr" ; Offset : DWORD -> "int" ; Length : DWORD -> "int" ; ContinueStream : BOOL -> "int" ; Overlapped : OVERLAPPED* optional -> "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 (
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 // BOOLfunction 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)。