StartDocPrinterW

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

DWORD StartDocPrinterW(
    PRINTER_HANDLE hPrinter,
    DWORD Level,
    DOC_INFO_1W* pDocInfo
);

<DllImport("winspool.drv", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function StartDocPrinterW(
    hPrinter As PRINTER_HANDLE,   ' PRINTER_HANDLE
    Level As UInteger,   ' DWORD
    pDocInfo As IntPtr   ' DOC_INFO_1W*
) As UInteger
End Function

' hPrinter : PRINTER_HANDLE
' Level : DWORD
' pDocInfo : DOC_INFO_1W*
Declare PtrSafe Function StartDocPrinterW Lib "winspool.drv" ( _
    ByVal hPrinter As LongPtr, _
    ByVal Level As Long, _
    ByVal pDocInfo As LongPtr) 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

StartDocPrinterW = ctypes.windll.LoadLibrary("winspool.drv").StartDocPrinterW
StartDocPrinterW.restype = wintypes.DWORD
StartDocPrinterW.argtypes = [
    PRINTER_HANDLE,  # hPrinter : PRINTER_HANDLE
    wintypes.DWORD,  # Level : DWORD
    ctypes.c_void_p,  # pDocInfo : DOC_INFO_1W*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
StartDocPrinterW = Fiddle::Function.new(
  lib['StartDocPrinterW'],
  [
    Fiddle::TYPE_VOIDP,  # hPrinter : PRINTER_HANDLE
    -Fiddle::TYPE_INT,  # Level : DWORD
    Fiddle::TYPE_VOIDP,  # pDocInfo : DOC_INFO_1W*
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winspool.drv")]
extern "system" {
    fn StartDocPrinterW(
        hPrinter: PRINTER_HANDLE,  // PRINTER_HANDLE
        Level: u32,  // DWORD
        pDocInfo: *mut DOC_INFO_1W  // DOC_INFO_1W*
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("winspool.drv", CharSet = CharSet.Unicode)]
public static extern uint StartDocPrinterW(PRINTER_HANDLE hPrinter, uint Level, IntPtr pDocInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_StartDocPrinterW' -Namespace Win32 -PassThru
# $api::StartDocPrinterW(hPrinter, Level, pDocInfo)

#uselib "winspool.drv"
#func global StartDocPrinterW "StartDocPrinterW" wptr, wptr, wptr
; StartDocPrinterW hPrinter, Level, varptr(pDocInfo)   ; 戻り値は stat
; hPrinter : PRINTER_HANDLE -> "wptr"
; Level : DWORD -> "wptr"
; pDocInfo : DOC_INFO_1W* -> "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。

#uselib "winspool.drv"
#cfunc global StartDocPrinterW "StartDocPrinterW" int, int, var
; res = StartDocPrinterW(hPrinter, Level, pDocInfo)
; hPrinter : PRINTER_HANDLE -> "int"
; Level : DWORD -> "int"
; pDocInfo : DOC_INFO_1W* -> "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 StartDocPrinterW(PRINTER_HANDLE hPrinter, DWORD Level, DOC_INFO_1W* pDocInfo)
#uselib "winspool.drv"
#cfunc global StartDocPrinterW "StartDocPrinterW" int, int, var
; res = StartDocPrinterW(hPrinter, Level, pDocInfo)
; hPrinter : PRINTER_HANDLE -> "int"
; Level : DWORD -> "int"
; pDocInfo : DOC_INFO_1W* -> "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。

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procStartDocPrinterW = winspool_drv.NewProc("StartDocPrinterW")
)

// hPrinter (PRINTER_HANDLE), Level (DWORD), pDocInfo (DOC_INFO_1W*)
r1, _, err := procStartDocPrinterW.Call(
	uintptr(hPrinter),
	uintptr(Level),
	uintptr(pDocInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function StartDocPrinterW(
  hPrinter: PRINTER_HANDLE;   // PRINTER_HANDLE
  Level: DWORD;   // DWORD
  pDocInfo: Pointer   // DOC_INFO_1W*
): DWORD; stdcall;
  external 'winspool.drv' name 'StartDocPrinterW';

result := DllCall("winspool.drv\StartDocPrinterW"
    , "Ptr", hPrinter   ; PRINTER_HANDLE
    , "UInt", Level   ; DWORD
    , "Ptr", pDocInfo   ; DOC_INFO_1W*
    , "UInt")   ; return: DWORD

●StartDocPrinterW(hPrinter, Level, pDocInfo) = DLL("winspool.drv", "dword StartDocPrinterW(void*, dword, void*)")
# 呼び出し: StartDocPrinterW(hPrinter, Level, pDocInfo)
# hPrinter : PRINTER_HANDLE -> "void*"
# Level : DWORD -> "dword"
# pDocInfo : DOC_INFO_1W* -> "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。