GetJobNamedPropertyValue

// winspool.drv
#include <windows.h>

DWORD GetJobNamedPropertyValue(
    PRINTER_HANDLE hPrinter,
    DWORD JobId,
    LPCWSTR pszName,
    PrintPropertyValue* pValue
);

<DllImport("winspool.drv", ExactSpelling:=True)>
Public Shared Function GetJobNamedPropertyValue(
    hPrinter As PRINTER_HANDLE,   ' PRINTER_HANDLE
    JobId As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> pszName As String,   ' LPCWSTR
    pValue As IntPtr   ' PrintPropertyValue* out
) As UInteger
End Function

' hPrinter : PRINTER_HANDLE
' JobId : DWORD
' pszName : LPCWSTR
' pValue : PrintPropertyValue* out
Declare PtrSafe Function GetJobNamedPropertyValue Lib "winspool.drv" ( _
    ByVal hPrinter As LongPtr, _
    ByVal JobId As Long, _
    ByVal pszName As LongPtr, _
    ByVal pValue 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

GetJobNamedPropertyValue = ctypes.windll.LoadLibrary("winspool.drv").GetJobNamedPropertyValue
GetJobNamedPropertyValue.restype = wintypes.DWORD
GetJobNamedPropertyValue.argtypes = [
    PRINTER_HANDLE,  # hPrinter : PRINTER_HANDLE
    wintypes.DWORD,  # JobId : DWORD
    wintypes.LPCWSTR,  # pszName : LPCWSTR
    ctypes.c_void_p,  # pValue : PrintPropertyValue* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
GetJobNamedPropertyValue = Fiddle::Function.new(
  lib['GetJobNamedPropertyValue'],
  [
    Fiddle::TYPE_VOIDP,  # hPrinter : PRINTER_HANDLE
    -Fiddle::TYPE_INT,  # JobId : DWORD
    Fiddle::TYPE_VOIDP,  # pszName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pValue : PrintPropertyValue* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "winspool.drv")]
extern "system" {
    fn GetJobNamedPropertyValue(
        hPrinter: PRINTER_HANDLE,  // PRINTER_HANDLE
        JobId: u32,  // DWORD
        pszName: *const u16,  // LPCWSTR
        pValue: *mut PrintPropertyValue  // PrintPropertyValue* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("winspool.drv")]
public static extern uint GetJobNamedPropertyValue(PRINTER_HANDLE hPrinter, uint JobId, [MarshalAs(UnmanagedType.LPWStr)] string pszName, IntPtr pValue);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_GetJobNamedPropertyValue' -Namespace Win32 -PassThru
# $api::GetJobNamedPropertyValue(hPrinter, JobId, pszName, pValue)

#uselib "winspool.drv"
#func global GetJobNamedPropertyValue "GetJobNamedPropertyValue" sptr, sptr, sptr, sptr
; GetJobNamedPropertyValue hPrinter, JobId, pszName, varptr(pValue)   ; 戻り値は stat
; hPrinter : PRINTER_HANDLE -> "sptr"
; JobId : DWORD -> "sptr"
; pszName : LPCWSTR -> "sptr"
; pValue : PrintPropertyValue* 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。
; ※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 GetJobNamedPropertyValue "GetJobNamedPropertyValue" int, int, wstr, var
; res = GetJobNamedPropertyValue(hPrinter, JobId, pszName, pValue)
; hPrinter : PRINTER_HANDLE -> "int"
; JobId : DWORD -> "int"
; pszName : LPCWSTR -> "wstr"
; pValue : PrintPropertyValue* 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 GetJobNamedPropertyValue(PRINTER_HANDLE hPrinter, DWORD JobId, LPCWSTR pszName, PrintPropertyValue* pValue)
#uselib "winspool.drv"
#cfunc global GetJobNamedPropertyValue "GetJobNamedPropertyValue" int, int, wstr, var
; res = GetJobNamedPropertyValue(hPrinter, JobId, pszName, pValue)
; hPrinter : PRINTER_HANDLE -> "int"
; JobId : DWORD -> "int"
; pszName : LPCWSTR -> "wstr"
; pValue : PrintPropertyValue* 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。

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procGetJobNamedPropertyValue = winspool_drv.NewProc("GetJobNamedPropertyValue")
)

// hPrinter (PRINTER_HANDLE), JobId (DWORD), pszName (LPCWSTR), pValue (PrintPropertyValue* out)
r1, _, err := procGetJobNamedPropertyValue.Call(
	uintptr(hPrinter),
	uintptr(JobId),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszName))),
	uintptr(pValue),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetJobNamedPropertyValue(
  hPrinter: PRINTER_HANDLE;   // PRINTER_HANDLE
  JobId: DWORD;   // DWORD
  pszName: PWideChar;   // LPCWSTR
  pValue: Pointer   // PrintPropertyValue* out
): DWORD; stdcall;
  external 'winspool.drv' name 'GetJobNamedPropertyValue';

result := DllCall("winspool.drv\GetJobNamedPropertyValue"
    , "Ptr", hPrinter   ; PRINTER_HANDLE
    , "UInt", JobId   ; DWORD
    , "WStr", pszName   ; LPCWSTR
    , "Ptr", pValue   ; PrintPropertyValue* out
    , "UInt")   ; return: DWORD

●GetJobNamedPropertyValue(hPrinter, JobId, pszName, pValue) = DLL("winspool.drv", "dword GetJobNamedPropertyValue(void*, dword, char*, void*)")
# 呼び出し: GetJobNamedPropertyValue(hPrinter, JobId, pszName, pValue)
# hPrinter : PRINTER_HANDLE -> "void*"
# JobId : DWORD -> "dword"
# pszName : LPCWSTR -> "char*"
# pValue : PrintPropertyValue* 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)。