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GetPrinterDataExW

関数

指定キー配下のプリンタ構成データ値を取得する(Unicode版)。

DLLwinspool.drv文字セットUnicode (-W)呼出規約winapi

シグネチャ

// winspool.drv  (Unicode / -W)
#include <windows.h>

DWORD GetPrinterDataExW(
    PRINTER_HANDLE hPrinter,
    LPCWSTR pKeyName,
    LPCWSTR pValueName,
    DWORD* pType,   // optional
    BYTE* pData,   // optional
    DWORD nSize,
    DWORD* pcbNeeded
);

パラメーター

名前	型	方向
hPrinter	PRINTER_HANDLE	in
pKeyName	LPCWSTR	in
pValueName	LPCWSTR	in
pType	DWORD*	outoptional
pData	BYTE*	outoptional
nSize	DWORD	in
pcbNeeded	DWORD*	out

戻り値の型: DWORD

各言語での呼び出し定義

// winspool.drv  (Unicode / -W)
#include <windows.h>

DWORD GetPrinterDataExW(
    PRINTER_HANDLE hPrinter,
    LPCWSTR pKeyName,
    LPCWSTR pValueName,
    DWORD* pType,   // optional
    BYTE* pData,   // optional
    DWORD nSize,
    DWORD* pcbNeeded
);

[DllImport("winspool.drv", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern uint GetPrinterDataExW(
    PRINTER_HANDLE hPrinter,   // PRINTER_HANDLE
    [MarshalAs(UnmanagedType.LPWStr)] string pKeyName,   // LPCWSTR
    [MarshalAs(UnmanagedType.LPWStr)] string pValueName,   // LPCWSTR
    IntPtr pType,   // DWORD* optional, out
    IntPtr pData,   // BYTE* optional, out
    uint nSize,   // DWORD
    out uint pcbNeeded   // DWORD* out
);

<DllImport("winspool.drv", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function GetPrinterDataExW(
    hPrinter As PRINTER_HANDLE,   ' PRINTER_HANDLE
    <MarshalAs(UnmanagedType.LPWStr)> pKeyName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pValueName As String,   ' LPCWSTR
    pType As IntPtr,   ' DWORD* optional, out
    pData As IntPtr,   ' BYTE* optional, out
    nSize As UInteger,   ' DWORD
    <Out> ByRef pcbNeeded As UInteger   ' DWORD* out
) As UInteger
End Function

' hPrinter : PRINTER_HANDLE
' pKeyName : LPCWSTR
' pValueName : LPCWSTR
' pType : DWORD* optional, out
' pData : BYTE* optional, out
' nSize : DWORD
' pcbNeeded : DWORD* out
Declare PtrSafe Function GetPrinterDataExW Lib "winspool.drv" ( _
    ByVal hPrinter As LongPtr, _
    ByVal pKeyName As LongPtr, _
    ByVal pValueName As LongPtr, _
    ByVal pType As LongPtr, _
    ByVal pData As LongPtr, _
    ByVal nSize As Long, _
    ByRef pcbNeeded As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetPrinterDataExW = ctypes.windll.LoadLibrary("winspool.drv").GetPrinterDataExW
GetPrinterDataExW.restype = wintypes.DWORD
GetPrinterDataExW.argtypes = [
    PRINTER_HANDLE,  # hPrinter : PRINTER_HANDLE
    wintypes.LPCWSTR,  # pKeyName : LPCWSTR
    wintypes.LPCWSTR,  # pValueName : LPCWSTR
    ctypes.POINTER(wintypes.DWORD),  # pType : DWORD* optional, out
    ctypes.POINTER(ctypes.c_ubyte),  # pData : BYTE* optional, out
    wintypes.DWORD,  # nSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcbNeeded : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
GetPrinterDataExW = Fiddle::Function.new(
  lib['GetPrinterDataExW'],
  [
    Fiddle::TYPE_VOIDP,  # hPrinter : PRINTER_HANDLE
    Fiddle::TYPE_VOIDP,  # pKeyName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pValueName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pType : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # pData : BYTE* optional, out
    -Fiddle::TYPE_INT,  # nSize : DWORD
    Fiddle::TYPE_VOIDP,  # pcbNeeded : DWORD* out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winspool.drv")]
extern "system" {
    fn GetPrinterDataExW(
        hPrinter: PRINTER_HANDLE,  // PRINTER_HANDLE
        pKeyName: *const u16,  // LPCWSTR
        pValueName: *const u16,  // LPCWSTR
        pType: *mut u32,  // DWORD* optional, out
        pData: *mut u8,  // BYTE* optional, out
        nSize: u32,  // DWORD
        pcbNeeded: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("winspool.drv", CharSet = CharSet.Unicode)]
public static extern uint GetPrinterDataExW(PRINTER_HANDLE hPrinter, [MarshalAs(UnmanagedType.LPWStr)] string pKeyName, [MarshalAs(UnmanagedType.LPWStr)] string pValueName, IntPtr pType, IntPtr pData, uint nSize, out uint pcbNeeded);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_GetPrinterDataExW' -Namespace Win32 -PassThru
# $api::GetPrinterDataExW(hPrinter, pKeyName, pValueName, pType, pData, nSize, pcbNeeded)

#uselib "winspool.drv"
#func global GetPrinterDataExW "GetPrinterDataExW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; GetPrinterDataExW hPrinter, pKeyName, pValueName, varptr(pType), varptr(pData), nSize, varptr(pcbNeeded)   ; 戻り値は stat
; hPrinter : PRINTER_HANDLE -> "wptr"
; pKeyName : LPCWSTR -> "wptr"
; pValueName : LPCWSTR -> "wptr"
; pType : DWORD* optional, out -> "wptr"
; pData : BYTE* optional, out -> "wptr"
; nSize : DWORD -> "wptr"
; pcbNeeded : DWORD* out -> "wptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "winspool.drv"
#cfunc global GetPrinterDataExW "GetPrinterDataExW" int, wstr, wstr, var, var, int, var
; res = GetPrinterDataExW(hPrinter, pKeyName, pValueName, pType, pData, nSize, pcbNeeded)
; hPrinter : PRINTER_HANDLE -> "int"
; pKeyName : LPCWSTR -> "wstr"
; pValueName : LPCWSTR -> "wstr"
; pType : DWORD* optional, out -> "var"
; pData : BYTE* optional, out -> "var"
; nSize : DWORD -> "int"
; pcbNeeded : DWORD* out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "winspool.drv"
#cfunc global GetPrinterDataExW "GetPrinterDataExW" int, wstr, wstr, sptr, sptr, int, sptr
; res = GetPrinterDataExW(hPrinter, pKeyName, pValueName, varptr(pType), varptr(pData), nSize, varptr(pcbNeeded))
; hPrinter : PRINTER_HANDLE -> "int"
; pKeyName : LPCWSTR -> "wstr"
; pValueName : LPCWSTR -> "wstr"
; pType : DWORD* optional, out -> "sptr"
; pData : BYTE* optional, out -> "sptr"
; nSize : DWORD -> "int"
; pcbNeeded : DWORD* out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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:

; DWORD GetPrinterDataExW(PRINTER_HANDLE hPrinter, LPCWSTR pKeyName, LPCWSTR pValueName, DWORD* pType, BYTE* pData, DWORD nSize, DWORD* pcbNeeded)
#uselib "winspool.drv"
#cfunc global GetPrinterDataExW "GetPrinterDataExW" int, wstr, wstr, var, var, int, var
; res = GetPrinterDataExW(hPrinter, pKeyName, pValueName, pType, pData, nSize, pcbNeeded)
; hPrinter : PRINTER_HANDLE -> "int"
; pKeyName : LPCWSTR -> "wstr"
; pValueName : LPCWSTR -> "wstr"
; pType : DWORD* optional, out -> "var"
; pData : BYTE* optional, out -> "var"
; nSize : DWORD -> "int"
; pcbNeeded : DWORD* out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。; DWORD GetPrinterDataExW(PRINTER_HANDLE hPrinter, LPCWSTR pKeyName, LPCWSTR pValueName, DWORD* pType, BYTE* pData, DWORD nSize, DWORD* pcbNeeded)
#uselib "winspool.drv"
#cfunc global GetPrinterDataExW "GetPrinterDataExW" int, wstr, wstr, intptr, intptr, int, intptr
; res = GetPrinterDataExW(hPrinter, pKeyName, pValueName, varptr(pType), varptr(pData), nSize, varptr(pcbNeeded))
; hPrinter : PRINTER_HANDLE -> "int"
; pKeyName : LPCWSTR -> "wstr"
; pValueName : LPCWSTR -> "wstr"
; pType : DWORD* optional, out -> "intptr"
; pData : BYTE* optional, out -> "intptr"
; nSize : DWORD -> "int"
; pcbNeeded : DWORD* out -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procGetPrinterDataExW = winspool_drv.NewProc("GetPrinterDataExW")
)

// hPrinter (PRINTER_HANDLE), pKeyName (LPCWSTR), pValueName (LPCWSTR), pType (DWORD* optional, out), pData (BYTE* optional, out), nSize (DWORD), pcbNeeded (DWORD* out)
r1, _, err := procGetPrinterDataExW.Call(
	uintptr(hPrinter),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pKeyName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pValueName))),
	uintptr(pType),
	uintptr(pData),
	uintptr(nSize),
	uintptr(pcbNeeded),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetPrinterDataExW(
  hPrinter: PRINTER_HANDLE;   // PRINTER_HANDLE
  pKeyName: PWideChar;   // LPCWSTR
  pValueName: PWideChar;   // LPCWSTR
  pType: Pointer;   // DWORD* optional, out
  pData: Pointer;   // BYTE* optional, out
  nSize: DWORD;   // DWORD
  pcbNeeded: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'winspool.drv' name 'GetPrinterDataExW';

result := DllCall("winspool.drv\GetPrinterDataExW"
    , "Ptr", hPrinter   ; PRINTER_HANDLE
    , "WStr", pKeyName   ; LPCWSTR
    , "WStr", pValueName   ; LPCWSTR
    , "Ptr", pType   ; DWORD* optional, out
    , "Ptr", pData   ; BYTE* optional, out
    , "UInt", nSize   ; DWORD
    , "Ptr", pcbNeeded   ; DWORD* out
    , "UInt")   ; return: DWORD

●GetPrinterDataExW(hPrinter, pKeyName, pValueName, pType, pData, nSize, pcbNeeded) = DLL("winspool.drv", "dword GetPrinterDataExW(void*, char*, char*, void*, void*, dword, void*)")
# 呼び出し: GetPrinterDataExW(hPrinter, pKeyName, pValueName, pType, pData, nSize, pcbNeeded)
# hPrinter : PRINTER_HANDLE -> "void*"
# pKeyName : LPCWSTR -> "char*"
# pValueName : LPCWSTR -> "char*"
# pType : DWORD* optional, out -> "void*"
# pData : BYTE* optional, out -> "void*"
# nSize : DWORD -> "dword"
# pcbNeeded : DWORD* 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。