Win32 API 日本語リファレンス
ホームMedia.WindowsMediaFormat › WMCreateSyncReader

WMCreateSyncReader

関数
同期型のWindows Mediaリーダーオブジェクトを作成する。
DLLWMVCore.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

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

HRESULT WMCreateSyncReader(
    IUnknown* pUnkCert,
    DWORD dwRights,
    IWMSyncReader** ppSyncReader
);

パラメーター

名前方向
pUnkCertIUnknown*in
dwRightsDWORDin
ppSyncReaderIWMSyncReader**out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT WMCreateSyncReader(
    IUnknown* pUnkCert,
    DWORD dwRights,
    IWMSyncReader** ppSyncReader
);
[DllImport("WMVCore.dll", ExactSpelling = true)]
static extern int WMCreateSyncReader(
    IntPtr pUnkCert,   // IUnknown*
    uint dwRights,   // DWORD
    IntPtr ppSyncReader   // IWMSyncReader** out
);
<DllImport("WMVCore.dll", ExactSpelling:=True)>
Public Shared Function WMCreateSyncReader(
    pUnkCert As IntPtr,   ' IUnknown*
    dwRights As UInteger,   ' DWORD
    ppSyncReader As IntPtr   ' IWMSyncReader** out
) As Integer
End Function
' pUnkCert : IUnknown*
' dwRights : DWORD
' ppSyncReader : IWMSyncReader** out
Declare PtrSafe Function WMCreateSyncReader Lib "wmvcore" ( _
    ByVal pUnkCert As LongPtr, _
    ByVal dwRights As Long, _
    ByVal ppSyncReader 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

WMCreateSyncReader = ctypes.windll.wmvcore.WMCreateSyncReader
WMCreateSyncReader.restype = ctypes.c_int
WMCreateSyncReader.argtypes = [
    ctypes.c_void_p,  # pUnkCert : IUnknown*
    wintypes.DWORD,  # dwRights : DWORD
    ctypes.c_void_p,  # ppSyncReader : IWMSyncReader** out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WMVCore.dll')
WMCreateSyncReader = Fiddle::Function.new(
  lib['WMCreateSyncReader'],
  [
    Fiddle::TYPE_VOIDP,  # pUnkCert : IUnknown*
    -Fiddle::TYPE_INT,  # dwRights : DWORD
    Fiddle::TYPE_VOIDP,  # ppSyncReader : IWMSyncReader** out
  ],
  Fiddle::TYPE_INT)
#[link(name = "wmvcore")]
extern "system" {
    fn WMCreateSyncReader(
        pUnkCert: *mut core::ffi::c_void,  // IUnknown*
        dwRights: u32,  // DWORD
        ppSyncReader: *mut *mut core::ffi::c_void  // IWMSyncReader** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("WMVCore.dll")]
public static extern int WMCreateSyncReader(IntPtr pUnkCert, uint dwRights, IntPtr ppSyncReader);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WMVCore_WMCreateSyncReader' -Namespace Win32 -PassThru
# $api::WMCreateSyncReader(pUnkCert, dwRights, ppSyncReader)
#uselib "WMVCore.dll"
#func global WMCreateSyncReader "WMCreateSyncReader" sptr, sptr, sptr
; WMCreateSyncReader pUnkCert, dwRights, ppSyncReader   ; 戻り値は stat
; pUnkCert : IUnknown* -> "sptr"
; dwRights : DWORD -> "sptr"
; ppSyncReader : IWMSyncReader** 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。
#uselib "WMVCore.dll"
#cfunc global WMCreateSyncReader "WMCreateSyncReader" sptr, int, sptr
; res = WMCreateSyncReader(pUnkCert, dwRights, ppSyncReader)
; pUnkCert : IUnknown* -> "sptr"
; dwRights : DWORD -> "int"
; ppSyncReader : IWMSyncReader** out -> "sptr"
; HRESULT WMCreateSyncReader(IUnknown* pUnkCert, DWORD dwRights, IWMSyncReader** ppSyncReader)
#uselib "WMVCore.dll"
#cfunc global WMCreateSyncReader "WMCreateSyncReader" intptr, int, intptr
; res = WMCreateSyncReader(pUnkCert, dwRights, ppSyncReader)
; pUnkCert : IUnknown* -> "intptr"
; dwRights : DWORD -> "int"
; ppSyncReader : IWMSyncReader** out -> "intptr"
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	wmvcore = windows.NewLazySystemDLL("WMVCore.dll")
	procWMCreateSyncReader = wmvcore.NewProc("WMCreateSyncReader")
)

// pUnkCert (IUnknown*), dwRights (DWORD), ppSyncReader (IWMSyncReader** out)
r1, _, err := procWMCreateSyncReader.Call(
	uintptr(pUnkCert),
	uintptr(dwRights),
	uintptr(ppSyncReader),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function WMCreateSyncReader(
  pUnkCert: Pointer;   // IUnknown*
  dwRights: DWORD;   // DWORD
  ppSyncReader: Pointer   // IWMSyncReader** out
): Integer; stdcall;
  external 'WMVCore.dll' name 'WMCreateSyncReader';
result := DllCall("WMVCore\WMCreateSyncReader"
    , "Ptr", pUnkCert   ; IUnknown*
    , "UInt", dwRights   ; DWORD
    , "Ptr", ppSyncReader   ; IWMSyncReader** out
    , "Int")   ; return: HRESULT
●WMCreateSyncReader(pUnkCert, dwRights, ppSyncReader) = DLL("WMVCore.dll", "int WMCreateSyncReader(void*, dword, void*)")
# 呼び出し: WMCreateSyncReader(pUnkCert, dwRights, ppSyncReader)
# pUnkCert : IUnknown* -> "void*"
# dwRights : DWORD -> "dword"
# ppSyncReader : IWMSyncReader** 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)。