GetPrintOutputInfo

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

HRESULT GetPrintOutputInfo(
    HWND hWnd,
    LPCWSTR pszPrinter,
    HANDLE* phFile,
    LPWSTR* ppszOutputFile
);

<DllImport("winspool.drv", ExactSpelling:=True)>
Public Shared Function GetPrintOutputInfo(
    hWnd As IntPtr,   ' HWND
    <MarshalAs(UnmanagedType.LPWStr)> pszPrinter As String,   ' LPCWSTR
    phFile As IntPtr,   ' HANDLE* out
    ppszOutputFile As IntPtr   ' LPWSTR* out
) As Integer
End Function

' hWnd : HWND
' pszPrinter : LPCWSTR
' phFile : HANDLE* out
' ppszOutputFile : LPWSTR* out
Declare PtrSafe Function GetPrintOutputInfo Lib "winspool.drv" ( _
    ByVal hWnd As LongPtr, _
    ByVal pszPrinter As LongPtr, _
    ByVal phFile As LongPtr, _
    ByVal ppszOutputFile 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

GetPrintOutputInfo = ctypes.windll.LoadLibrary("winspool.drv").GetPrintOutputInfo
GetPrintOutputInfo.restype = ctypes.c_int
GetPrintOutputInfo.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND
    wintypes.LPCWSTR,  # pszPrinter : LPCWSTR
    ctypes.c_void_p,  # phFile : HANDLE* out
    ctypes.c_void_p,  # ppszOutputFile : LPWSTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
GetPrintOutputInfo = Fiddle::Function.new(
  lib['GetPrintOutputInfo'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # pszPrinter : LPCWSTR
    Fiddle::TYPE_VOIDP,  # phFile : HANDLE* out
    Fiddle::TYPE_VOIDP,  # ppszOutputFile : LPWSTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "winspool.drv")]
extern "system" {
    fn GetPrintOutputInfo(
        hWnd: *mut core::ffi::c_void,  // HWND
        pszPrinter: *const u16,  // LPCWSTR
        phFile: *mut *mut core::ffi::c_void,  // HANDLE* out
        ppszOutputFile: *mut *mut u16  // LPWSTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("winspool.drv")]
public static extern int GetPrintOutputInfo(IntPtr hWnd, [MarshalAs(UnmanagedType.LPWStr)] string pszPrinter, IntPtr phFile, IntPtr ppszOutputFile);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_GetPrintOutputInfo' -Namespace Win32 -PassThru
# $api::GetPrintOutputInfo(hWnd, pszPrinter, phFile, ppszOutputFile)

#uselib "winspool.drv"
#func global GetPrintOutputInfo "GetPrintOutputInfo" sptr, sptr, sptr, sptr
; GetPrintOutputInfo hWnd, pszPrinter, phFile, varptr(ppszOutputFile)   ; 戻り値は stat
; hWnd : HWND -> "sptr"
; pszPrinter : LPCWSTR -> "sptr"
; phFile : HANDLE* out -> "sptr"
; ppszOutputFile : LPWSTR* 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 "winspool.drv"
#cfunc global GetPrintOutputInfo "GetPrintOutputInfo" sptr, wstr, sptr, var
; res = GetPrintOutputInfo(hWnd, pszPrinter, phFile, ppszOutputFile)
; hWnd : HWND -> "sptr"
; pszPrinter : LPCWSTR -> "wstr"
; phFile : HANDLE* out -> "sptr"
; ppszOutputFile : LPWSTR* out -> "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。

; HRESULT GetPrintOutputInfo(HWND hWnd, LPCWSTR pszPrinter, HANDLE* phFile, LPWSTR* ppszOutputFile)
#uselib "winspool.drv"
#cfunc global GetPrintOutputInfo "GetPrintOutputInfo" intptr, wstr, intptr, var
; res = GetPrintOutputInfo(hWnd, pszPrinter, phFile, ppszOutputFile)
; hWnd : HWND -> "intptr"
; pszPrinter : LPCWSTR -> "wstr"
; phFile : HANDLE* out -> "intptr"
; ppszOutputFile : LPWSTR* out -> "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。

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procGetPrintOutputInfo = winspool_drv.NewProc("GetPrintOutputInfo")
)

// hWnd (HWND), pszPrinter (LPCWSTR), phFile (HANDLE* out), ppszOutputFile (LPWSTR* out)
r1, _, err := procGetPrintOutputInfo.Call(
	uintptr(hWnd),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszPrinter))),
	uintptr(phFile),
	uintptr(ppszOutputFile),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetPrintOutputInfo(
  hWnd: THandle;   // HWND
  pszPrinter: PWideChar;   // LPCWSTR
  phFile: Pointer;   // HANDLE* out
  ppszOutputFile: PPWideChar   // LPWSTR* out
): Integer; stdcall;
  external 'winspool.drv' name 'GetPrintOutputInfo';

result := DllCall("winspool.drv\GetPrintOutputInfo"
    , "Ptr", hWnd   ; HWND
    , "WStr", pszPrinter   ; LPCWSTR
    , "Ptr", phFile   ; HANDLE* out
    , "Ptr", ppszOutputFile   ; LPWSTR* out
    , "Int")   ; return: HRESULT

●GetPrintOutputInfo(hWnd, pszPrinter, phFile, ppszOutputFile) = DLL("winspool.drv", "int GetPrintOutputInfo(void*, char*, void*, void*)")
# 呼び出し: GetPrintOutputInfo(hWnd, pszPrinter, phFile, ppszOutputFile)
# hWnd : HWND -> "void*"
# pszPrinter : LPCWSTR -> "char*"
# phFile : HANDLE* out -> "void*"
# ppszOutputFile : LPWSTR* 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)。