ホーム › Graphics.Printing › GetPrinterDriverPackagePathW

GetPrinterDriverPackagePathW

関数

プリンタードライバーパッケージのパスを取得する。

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>

HRESULT GetPrinterDriverPackagePathW(
    LPCWSTR pszServer,   // optional
    LPCWSTR pszEnvironment,   // optional
    LPCWSTR pszLanguage,   // optional
    LPCWSTR pszPackageID,
    LPWSTR pszDriverPackageCab,   // optional
    DWORD cchDriverPackageCab,   // optional
    DWORD* pcchRequiredSize
);

パラメーター

名前	型	方向	説明
pszServer	LPCWSTR	inoptional	対象サーバー名(Unicode)。NULLでローカルマシンを対象とする。
pszEnvironment	LPCWSTR	inoptional	対象アーキテクチャ環境名(Unicode)。NULLで現在の環境。
pszLanguage	LPCWSTR	inoptional	ドライバパッケージの言語を示す文字列(Unicode)。NULL可。
pszPackageID	LPCWSTR	in	取得対象のドライバパッケージを識別するID(Unicode)。
pszDriverPackageCab	LPWSTR	inoutoptional	パッケージCABのパスを受け取る出力バッファ(Unicode)。
cchDriverPackageCab	DWORD	inoptional	pszDriverPackageCabバッファのサイズ(文字数)。
pcchRequiredSize	DWORD*	out	必要なバッファサイズ(文字数)を受け取るポインタ。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT GetPrinterDriverPackagePathW(
    LPCWSTR pszServer,   // optional
    LPCWSTR pszEnvironment,   // optional
    LPCWSTR pszLanguage,   // optional
    LPCWSTR pszPackageID,
    LPWSTR pszDriverPackageCab,   // optional
    DWORD cchDriverPackageCab,   // optional
    DWORD* pcchRequiredSize
);

[DllImport("winspool.drv", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern int GetPrinterDriverPackagePathW(
    [MarshalAs(UnmanagedType.LPWStr)] string pszServer,   // LPCWSTR optional
    [MarshalAs(UnmanagedType.LPWStr)] string pszEnvironment,   // LPCWSTR optional
    [MarshalAs(UnmanagedType.LPWStr)] string pszLanguage,   // LPCWSTR optional
    [MarshalAs(UnmanagedType.LPWStr)] string pszPackageID,   // LPCWSTR
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszDriverPackageCab,   // LPWSTR optional, in/out
    uint cchDriverPackageCab,   // DWORD optional
    out uint pcchRequiredSize   // DWORD* out
);

<DllImport("winspool.drv", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function GetPrinterDriverPackagePathW(
    <MarshalAs(UnmanagedType.LPWStr)> pszServer As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> pszEnvironment As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> pszLanguage As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> pszPackageID As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pszDriverPackageCab As System.Text.StringBuilder,   ' LPWSTR optional, in/out
    cchDriverPackageCab As UInteger,   ' DWORD optional
    <Out> ByRef pcchRequiredSize As UInteger   ' DWORD* out
) As Integer
End Function

' pszServer : LPCWSTR optional
' pszEnvironment : LPCWSTR optional
' pszLanguage : LPCWSTR optional
' pszPackageID : LPCWSTR
' pszDriverPackageCab : LPWSTR optional, in/out
' cchDriverPackageCab : DWORD optional
' pcchRequiredSize : DWORD* out
Declare PtrSafe Function GetPrinterDriverPackagePathW Lib "winspool.drv" ( _
    ByVal pszServer As LongPtr, _
    ByVal pszEnvironment As LongPtr, _
    ByVal pszLanguage As LongPtr, _
    ByVal pszPackageID As LongPtr, _
    ByVal pszDriverPackageCab As LongPtr, _
    ByVal cchDriverPackageCab As Long, _
    ByRef pcchRequiredSize 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

GetPrinterDriverPackagePathW = ctypes.windll.LoadLibrary("winspool.drv").GetPrinterDriverPackagePathW
GetPrinterDriverPackagePathW.restype = ctypes.c_int
GetPrinterDriverPackagePathW.argtypes = [
    wintypes.LPCWSTR,  # pszServer : LPCWSTR optional
    wintypes.LPCWSTR,  # pszEnvironment : LPCWSTR optional
    wintypes.LPCWSTR,  # pszLanguage : LPCWSTR optional
    wintypes.LPCWSTR,  # pszPackageID : LPCWSTR
    wintypes.LPWSTR,  # pszDriverPackageCab : LPWSTR optional, in/out
    wintypes.DWORD,  # cchDriverPackageCab : DWORD optional
    ctypes.POINTER(wintypes.DWORD),  # pcchRequiredSize : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
GetPrinterDriverPackagePathW = Fiddle::Function.new(
  lib['GetPrinterDriverPackagePathW'],
  [
    Fiddle::TYPE_VOIDP,  # pszServer : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pszEnvironment : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pszLanguage : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pszPackageID : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pszDriverPackageCab : LPWSTR optional, in/out
    -Fiddle::TYPE_INT,  # cchDriverPackageCab : DWORD optional
    Fiddle::TYPE_VOIDP,  # pcchRequiredSize : DWORD* out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winspool.drv")]
extern "system" {
    fn GetPrinterDriverPackagePathW(
        pszServer: *const u16,  // LPCWSTR optional
        pszEnvironment: *const u16,  // LPCWSTR optional
        pszLanguage: *const u16,  // LPCWSTR optional
        pszPackageID: *const u16,  // LPCWSTR
        pszDriverPackageCab: *mut u16,  // LPWSTR optional, in/out
        cchDriverPackageCab: u32,  // DWORD optional
        pcchRequiredSize: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("winspool.drv", CharSet = CharSet.Unicode)]
public static extern int GetPrinterDriverPackagePathW([MarshalAs(UnmanagedType.LPWStr)] string pszServer, [MarshalAs(UnmanagedType.LPWStr)] string pszEnvironment, [MarshalAs(UnmanagedType.LPWStr)] string pszLanguage, [MarshalAs(UnmanagedType.LPWStr)] string pszPackageID, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszDriverPackageCab, uint cchDriverPackageCab, out uint pcchRequiredSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_GetPrinterDriverPackagePathW' -Namespace Win32 -PassThru
# $api::GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize)

#uselib "winspool.drv"
#func global GetPrinterDriverPackagePathW "GetPrinterDriverPackagePathW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; GetPrinterDriverPackagePathW pszServer, pszEnvironment, pszLanguage, pszPackageID, varptr(pszDriverPackageCab), cchDriverPackageCab, varptr(pcchRequiredSize)   ; 戻り値は stat
; pszServer : LPCWSTR optional -> "wptr"
; pszEnvironment : LPCWSTR optional -> "wptr"
; pszLanguage : LPCWSTR optional -> "wptr"
; pszPackageID : LPCWSTR -> "wptr"
; pszDriverPackageCab : LPWSTR optional, in/out -> "wptr"
; cchDriverPackageCab : DWORD optional -> "wptr"
; pcchRequiredSize : DWORD* out -> "wptr"
; ※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 GetPrinterDriverPackagePathW "GetPrinterDriverPackagePathW" wstr, wstr, wstr, wstr, var, int, var
; res = GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize)
; pszServer : LPCWSTR optional -> "wstr"
; pszEnvironment : LPCWSTR optional -> "wstr"
; pszLanguage : LPCWSTR optional -> "wstr"
; pszPackageID : LPCWSTR -> "wstr"
; pszDriverPackageCab : LPWSTR optional, in/out -> "var"
; cchDriverPackageCab : DWORD optional -> "int"
; pcchRequiredSize : DWORD* 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。#uselib "winspool.drv"
#cfunc global GetPrinterDriverPackagePathW "GetPrinterDriverPackagePathW" wstr, wstr, wstr, wstr, sptr, int, sptr
; res = GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, varptr(pszDriverPackageCab), cchDriverPackageCab, varptr(pcchRequiredSize))
; pszServer : LPCWSTR optional -> "wstr"
; pszEnvironment : LPCWSTR optional -> "wstr"
; pszLanguage : LPCWSTR optional -> "wstr"
; pszPackageID : LPCWSTR -> "wstr"
; pszDriverPackageCab : LPWSTR optional, in/out -> "sptr"
; cchDriverPackageCab : DWORD optional -> "int"
; pcchRequiredSize : DWORD* out -> "sptr"
; ※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:

; HRESULT GetPrinterDriverPackagePathW(LPCWSTR pszServer, LPCWSTR pszEnvironment, LPCWSTR pszLanguage, LPCWSTR pszPackageID, LPWSTR pszDriverPackageCab, DWORD cchDriverPackageCab, DWORD* pcchRequiredSize)
#uselib "winspool.drv"
#cfunc global GetPrinterDriverPackagePathW "GetPrinterDriverPackagePathW" wstr, wstr, wstr, wstr, var, int, var
; res = GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize)
; pszServer : LPCWSTR optional -> "wstr"
; pszEnvironment : LPCWSTR optional -> "wstr"
; pszLanguage : LPCWSTR optional -> "wstr"
; pszPackageID : LPCWSTR -> "wstr"
; pszDriverPackageCab : LPWSTR optional, in/out -> "var"
; cchDriverPackageCab : DWORD optional -> "int"
; pcchRequiredSize : DWORD* 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 GetPrinterDriverPackagePathW(LPCWSTR pszServer, LPCWSTR pszEnvironment, LPCWSTR pszLanguage, LPCWSTR pszPackageID, LPWSTR pszDriverPackageCab, DWORD cchDriverPackageCab, DWORD* pcchRequiredSize)
#uselib "winspool.drv"
#cfunc global GetPrinterDriverPackagePathW "GetPrinterDriverPackagePathW" wstr, wstr, wstr, wstr, intptr, int, intptr
; res = GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, varptr(pszDriverPackageCab), cchDriverPackageCab, varptr(pcchRequiredSize))
; pszServer : LPCWSTR optional -> "wstr"
; pszEnvironment : LPCWSTR optional -> "wstr"
; pszLanguage : LPCWSTR optional -> "wstr"
; pszPackageID : LPCWSTR -> "wstr"
; pszDriverPackageCab : LPWSTR optional, in/out -> "intptr"
; cchDriverPackageCab : DWORD optional -> "int"
; pcchRequiredSize : DWORD* out -> "intptr"
; ※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")
	procGetPrinterDriverPackagePathW = winspool_drv.NewProc("GetPrinterDriverPackagePathW")
)

// pszServer (LPCWSTR optional), pszEnvironment (LPCWSTR optional), pszLanguage (LPCWSTR optional), pszPackageID (LPCWSTR), pszDriverPackageCab (LPWSTR optional, in/out), cchDriverPackageCab (DWORD optional), pcchRequiredSize (DWORD* out)
r1, _, err := procGetPrinterDriverPackagePathW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszServer))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszEnvironment))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszLanguage))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszPackageID))),
	uintptr(pszDriverPackageCab),
	uintptr(cchDriverPackageCab),
	uintptr(pcchRequiredSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetPrinterDriverPackagePathW(
  pszServer: PWideChar;   // LPCWSTR optional
  pszEnvironment: PWideChar;   // LPCWSTR optional
  pszLanguage: PWideChar;   // LPCWSTR optional
  pszPackageID: PWideChar;   // LPCWSTR
  pszDriverPackageCab: PWideChar;   // LPWSTR optional, in/out
  cchDriverPackageCab: DWORD;   // DWORD optional
  pcchRequiredSize: Pointer   // DWORD* out
): Integer; stdcall;
  external 'winspool.drv' name 'GetPrinterDriverPackagePathW';

result := DllCall("winspool.drv\GetPrinterDriverPackagePathW"
    , "WStr", pszServer   ; LPCWSTR optional
    , "WStr", pszEnvironment   ; LPCWSTR optional
    , "WStr", pszLanguage   ; LPCWSTR optional
    , "WStr", pszPackageID   ; LPCWSTR
    , "Ptr", pszDriverPackageCab   ; LPWSTR optional, in/out
    , "UInt", cchDriverPackageCab   ; DWORD optional
    , "Ptr", pcchRequiredSize   ; DWORD* out
    , "Int")   ; return: HRESULT

●GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize) = DLL("winspool.drv", "int GetPrinterDriverPackagePathW(char*, char*, char*, char*, char*, dword, void*)")
# 呼び出し: GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize)
# pszServer : LPCWSTR optional -> "char*"
# pszEnvironment : LPCWSTR optional -> "char*"
# pszLanguage : LPCWSTR optional -> "char*"
# pszPackageID : LPCWSTR -> "char*"
# pszDriverPackageCab : LPWSTR optional, in/out -> "char*"
# cchDriverPackageCab : DWORD optional -> "dword"
# pcchRequiredSize : 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。

const std = @import("std");

extern "winspool.drv" fn GetPrinterDriverPackagePathW(
    pszServer: [*c]const u16, // LPCWSTR optional
    pszEnvironment: [*c]const u16, // LPCWSTR optional
    pszLanguage: [*c]const u16, // LPCWSTR optional
    pszPackageID: [*c]const u16, // LPCWSTR
    pszDriverPackageCab: [*c]u16, // LPWSTR optional, in/out
    cchDriverPackageCab: u32, // DWORD optional
    pcchRequiredSize: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc GetPrinterDriverPackagePathW(
    pszServer: WideCString,  # LPCWSTR optional
    pszEnvironment: WideCString,  # LPCWSTR optional
    pszLanguage: WideCString,  # LPCWSTR optional
    pszPackageID: WideCString,  # LPCWSTR
    pszDriverPackageCab: ptr uint16,  # LPWSTR optional, in/out
    cchDriverPackageCab: uint32,  # DWORD optional
    pcchRequiredSize: ptr uint32  # DWORD* out
): int32 {.importc: "GetPrinterDriverPackagePathW", stdcall, dynlib: "winspool.drv".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "winspool.drv");
extern(Windows)
int GetPrinterDriverPackagePathW(
    const(wchar)* pszServer,   // LPCWSTR optional
    const(wchar)* pszEnvironment,   // LPCWSTR optional
    const(wchar)* pszLanguage,   // LPCWSTR optional
    const(wchar)* pszPackageID,   // LPCWSTR
    wchar* pszDriverPackageCab,   // LPWSTR optional, in/out
    uint cchDriverPackageCab,   // DWORD optional
    uint* pcchRequiredSize   // DWORD* out
);

ccall((:GetPrinterDriverPackagePathW, "winspool.drv"), stdcall, Int32,
      (Cwstring, Cwstring, Cwstring, Cwstring, Ptr{UInt16}, UInt32, Ptr{UInt32}),
      pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize)
# pszServer : LPCWSTR optional -> Cwstring
# pszEnvironment : LPCWSTR optional -> Cwstring
# pszLanguage : LPCWSTR optional -> Cwstring
# pszPackageID : LPCWSTR -> Cwstring
# pszDriverPackageCab : LPWSTR optional, in/out -> Ptr{UInt16}
# cchDriverPackageCab : DWORD optional -> UInt32
# pcchRequiredSize : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
int32_t GetPrinterDriverPackagePathW(
    const uint16_t* pszServer,
    const uint16_t* pszEnvironment,
    const uint16_t* pszLanguage,
    const uint16_t* pszPackageID,
    uint16_t* pszDriverPackageCab,
    uint32_t cchDriverPackageCab,
    uint32_t* pcchRequiredSize);
]]
local winspool.drv = ffi.load("winspool.drv")
-- winspool.drv.GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize)
-- pszServer : LPCWSTR optional
-- pszEnvironment : LPCWSTR optional
-- pszLanguage : LPCWSTR optional
-- pszPackageID : LPCWSTR
-- pszDriverPackageCab : LPWSTR optional, in/out
-- cchDriverPackageCab : DWORD optional
-- pcchRequiredSize : DWORD* out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('winspool.drv');
const GetPrinterDriverPackagePathW = lib.func('__stdcall', 'GetPrinterDriverPackagePathW', 'int32_t', ['str16', 'str16', 'str16', 'str16', 'uint16_t *', 'uint32_t', 'uint32_t *']);
// GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize)
// pszServer : LPCWSTR optional -> 'str16'
// pszEnvironment : LPCWSTR optional -> 'str16'
// pszLanguage : LPCWSTR optional -> 'str16'
// pszPackageID : LPCWSTR -> 'str16'
// pszDriverPackageCab : LPWSTR optional, in/out -> 'uint16_t *'
// cchDriverPackageCab : DWORD optional -> 'uint32_t'
// pcchRequiredSize : DWORD* out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("winspool.drv", {
  GetPrinterDriverPackagePathW: { parameters: ["buffer", "buffer", "buffer", "buffer", "buffer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize)
// pszServer : LPCWSTR optional -> "buffer"
// pszEnvironment : LPCWSTR optional -> "buffer"
// pszLanguage : LPCWSTR optional -> "buffer"
// pszPackageID : LPCWSTR -> "buffer"
// pszDriverPackageCab : LPWSTR optional, in/out -> "buffer"
// cchDriverPackageCab : DWORD optional -> "u32"
// pcchRequiredSize : DWORD* out -> "pointer"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t GetPrinterDriverPackagePathW(
    const uint16_t* pszServer,
    const uint16_t* pszEnvironment,
    const uint16_t* pszLanguage,
    const uint16_t* pszPackageID,
    uint16_t* pszDriverPackageCab,
    uint32_t cchDriverPackageCab,
    uint32_t* pcchRequiredSize);
C, "winspool.drv");
// $ffi->GetPrinterDriverPackagePathW(pszServer, pszEnvironment, pszLanguage, pszPackageID, pszDriverPackageCab, cchDriverPackageCab, pcchRequiredSize);
// pszServer : LPCWSTR optional
// pszEnvironment : LPCWSTR optional
// pszLanguage : LPCWSTR optional
// pszPackageID : LPCWSTR
// pszDriverPackageCab : LPWSTR optional, in/out
// cchDriverPackageCab : DWORD optional
// pcchRequiredSize : DWORD* out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Winspool.drv extends StdCallLibrary {
    Winspool.drv INSTANCE = Native.load("winspool.drv", Winspool.drv.class, W32APIOptions.UNICODE_OPTIONS);
    int GetPrinterDriverPackagePathW(
        WString pszServer,   // LPCWSTR optional
        WString pszEnvironment,   // LPCWSTR optional
        WString pszLanguage,   // LPCWSTR optional
        WString pszPackageID,   // LPCWSTR
        char[] pszDriverPackageCab,   // LPWSTR optional, in/out
        int cchDriverPackageCab,   // DWORD optional
        IntByReference pcchRequiredSize   // DWORD* out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("winspool.drv")]
lib Libwinspool.drv
  fun GetPrinterDriverPackagePathW = GetPrinterDriverPackagePathW(
    pszServer : UInt16*,   # LPCWSTR optional
    pszEnvironment : UInt16*,   # LPCWSTR optional
    pszLanguage : UInt16*,   # LPCWSTR optional
    pszPackageID : UInt16*,   # LPCWSTR
    pszDriverPackageCab : UInt16*,   # LPWSTR optional, in/out
    cchDriverPackageCab : UInt32,   # DWORD optional
    pcchRequiredSize : UInt32*   # DWORD* out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef GetPrinterDriverPackagePathWNative = Int32 Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Uint32, Pointer<Uint32>);
typedef GetPrinterDriverPackagePathWDart = int Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, int, Pointer<Uint32>);
final GetPrinterDriverPackagePathW = DynamicLibrary.open('winspool.drv')
    .lookupFunction<GetPrinterDriverPackagePathWNative, GetPrinterDriverPackagePathWDart>('GetPrinterDriverPackagePathW');
// pszServer : LPCWSTR optional -> Pointer<Utf16>
// pszEnvironment : LPCWSTR optional -> Pointer<Utf16>
// pszLanguage : LPCWSTR optional -> Pointer<Utf16>
// pszPackageID : LPCWSTR -> Pointer<Utf16>
// pszDriverPackageCab : LPWSTR optional, in/out -> Pointer<Utf16>
// cchDriverPackageCab : DWORD optional -> Uint32
// pcchRequiredSize : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetPrinterDriverPackagePathW(
  pszServer: PWideChar;   // LPCWSTR optional
  pszEnvironment: PWideChar;   // LPCWSTR optional
  pszLanguage: PWideChar;   // LPCWSTR optional
  pszPackageID: PWideChar;   // LPCWSTR
  pszDriverPackageCab: PWideChar;   // LPWSTR optional, in/out
  cchDriverPackageCab: DWORD;   // DWORD optional
  pcchRequiredSize: Pointer   // DWORD* out
): Integer; stdcall;
  external 'winspool.drv' name 'GetPrinterDriverPackagePathW';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GetPrinterDriverPackagePathW"
  c_GetPrinterDriverPackagePathW :: CWString -> CWString -> CWString -> CWString -> CWString -> Word32 -> Ptr Word32 -> IO Int32
-- pszServer : LPCWSTR optional -> CWString
-- pszEnvironment : LPCWSTR optional -> CWString
-- pszLanguage : LPCWSTR optional -> CWString
-- pszPackageID : LPCWSTR -> CWString
-- pszDriverPackageCab : LPWSTR optional, in/out -> CWString
-- cchDriverPackageCab : DWORD optional -> Word32
-- pcchRequiredSize : DWORD* out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let getprinterdriverpackagepathw =
  foreign "GetPrinterDriverPackagePathW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* pszServer : LPCWSTR optional -> (ptr uint16_t) *)
(* pszEnvironment : LPCWSTR optional -> (ptr uint16_t) *)
(* pszLanguage : LPCWSTR optional -> (ptr uint16_t) *)
(* pszPackageID : LPCWSTR -> (ptr uint16_t) *)
(* pszDriverPackageCab : LPWSTR optional, in/out -> (ptr uint16_t) *)
(* cchDriverPackageCab : DWORD optional -> uint32_t *)
(* pcchRequiredSize : DWORD* out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library winspool.drv (t "winspool.drv"))
(cffi:use-foreign-library winspool.drv)

(cffi:defcfun ("GetPrinterDriverPackagePathW" get-printer-driver-package-path-w :convention :stdcall) :int32
  (psz-server (:string :encoding :utf-16le))   ; LPCWSTR optional
  (psz-environment (:string :encoding :utf-16le))   ; LPCWSTR optional
  (psz-language (:string :encoding :utf-16le))   ; LPCWSTR optional
  (psz-package-id (:string :encoding :utf-16le))   ; LPCWSTR
  (psz-driver-package-cab :pointer)   ; LPWSTR optional, in/out
  (cch-driver-package-cab :uint32)   ; DWORD optional
  (pcch-required-size :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetPrinterDriverPackagePathW = Win32::API::More->new('winspool.drv',
    'int GetPrinterDriverPackagePathW(LPCWSTR pszServer, LPCWSTR pszEnvironment, LPCWSTR pszLanguage, LPCWSTR pszPackageID, LPWSTR pszDriverPackageCab, DWORD cchDriverPackageCab, LPVOID pcchRequiredSize)');
# my $ret = $GetPrinterDriverPackagePathW->Call($pszServer, $pszEnvironment, $pszLanguage, $pszPackageID, $pszDriverPackageCab, $cchDriverPackageCab, $pcchRequiredSize);
# pszServer : LPCWSTR optional -> LPCWSTR
# pszEnvironment : LPCWSTR optional -> LPCWSTR
# pszLanguage : LPCWSTR optional -> LPCWSTR
# pszPackageID : LPCWSTR -> LPCWSTR
# pszDriverPackageCab : LPWSTR optional, in/out -> LPWSTR
# cchDriverPackageCab : DWORD optional -> DWORD
# pcchRequiredSize : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。

GetPrinterDriverPackagePathW

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