DeletePrinterConnectionA

// winspool.drv  (ANSI / -A)
#include <windows.h>

BOOL DeletePrinterConnectionA(
    LPSTR pName
);

<DllImport("winspool.drv", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function DeletePrinterConnectionA(
    <MarshalAs(UnmanagedType.LPStr)> pName As String   ' LPSTR
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' pName : LPSTR
Declare PtrSafe Function DeletePrinterConnectionA Lib "winspool.drv" ( _
    ByVal pName As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DeletePrinterConnectionA = ctypes.windll.LoadLibrary("winspool.drv").DeletePrinterConnectionA
DeletePrinterConnectionA.restype = wintypes.BOOL
DeletePrinterConnectionA.argtypes = [
    wintypes.LPCSTR,  # pName : LPSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
DeletePrinterConnectionA = Fiddle::Function.new(
  lib['DeletePrinterConnectionA'],
  [
    Fiddle::TYPE_VOIDP,  # pName : LPSTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "winspool.drv")]
extern "system" {
    fn DeletePrinterConnectionA(
        pName: *mut u8  // LPSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("winspool.drv", CharSet = CharSet.Ansi)]
public static extern bool DeletePrinterConnectionA([MarshalAs(UnmanagedType.LPStr)] string pName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_DeletePrinterConnectionA' -Namespace Win32 -PassThru
# $api::DeletePrinterConnectionA(pName)

#uselib "winspool.drv"
#func global DeletePrinterConnectionA "DeletePrinterConnectionA" sptr
; DeletePrinterConnectionA pName   ; 戻り値は stat
; pName : LPSTR -> "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 DeletePrinterConnectionA "DeletePrinterConnectionA" str
; res = DeletePrinterConnectionA(pName)
; pName : LPSTR -> "str"

; BOOL DeletePrinterConnectionA(LPSTR pName)
#uselib "winspool.drv"
#cfunc global DeletePrinterConnectionA "DeletePrinterConnectionA" str
; res = DeletePrinterConnectionA(pName)
; pName : LPSTR -> "str"

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procDeletePrinterConnectionA = winspool_drv.NewProc("DeletePrinterConnectionA")
)

// pName (LPSTR)
r1, _, err := procDeletePrinterConnectionA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DeletePrinterConnectionA(
  pName: PAnsiChar   // LPSTR
): BOOL; stdcall;
  external 'winspool.drv' name 'DeletePrinterConnectionA';

result := DllCall("winspool.drv\DeletePrinterConnectionA"
    , "AStr", pName   ; LPSTR
    , "Int")   ; return: BOOL

●DeletePrinterConnectionA(pName) = DLL("winspool.drv", "bool DeletePrinterConnectionA(char*)")
# 呼び出し: DeletePrinterConnectionA(pName)
# pName : LPSTR -> "char*"
# 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)。

const std = @import("std");

extern "winspool.drv" fn DeletePrinterConnectionA(
    pName: [*c]const u8 // LPSTR
) callconv(std.os.windows.WINAPI) i32;

proc DeletePrinterConnectionA(
    pName: cstring  # LPSTR
): int32 {.importc: "DeletePrinterConnectionA", stdcall, dynlib: "winspool.drv".}

pragma(lib, "winspool.drv");
extern(Windows)
int DeletePrinterConnectionA(
    const(char)* pName   // LPSTR
);

ccall((:DeletePrinterConnectionA, "winspool.drv"), stdcall, Int32,
      (Cstring,),
      pName)
# pName : LPSTR -> Cstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t DeletePrinterConnectionA(
    const char* pName);
]]
local winspool.drv = ffi.load("winspool.drv")
-- winspool.drv.DeletePrinterConnectionA(pName)
-- pName : LPSTR
-- 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。

const koffi = require('koffi');
const lib = koffi.load('winspool.drv');
const DeletePrinterConnectionA = lib.func('__stdcall', 'DeletePrinterConnectionA', 'int32_t', ['str']);
// DeletePrinterConnectionA(pName)
// pName : LPSTR -> 'str'
// 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", {
  DeletePrinterConnectionA: { parameters: ["buffer"], result: "i32" },
});
// lib.symbols.DeletePrinterConnectionA(pName)
// pName : LPSTR -> "buffer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t DeletePrinterConnectionA(
    const char* pName);
C, "winspool.drv");
// $ffi->DeletePrinterConnectionA(pName);
// pName : LPSTR
// 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.ASCII_OPTIONS);
    boolean DeletePrinterConnectionA(
        String pName   // LPSTR
    );
}

@[Link("winspool.drv")]
lib Libwinspool.drv
  fun DeletePrinterConnectionA = DeletePrinterConnectionA(
    pName : UInt8*   # LPSTR
  ) : 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 DeletePrinterConnectionANative = Int32 Function(Pointer<Utf8>);
typedef DeletePrinterConnectionADart = int Function(Pointer<Utf8>);
final DeletePrinterConnectionA = DynamicLibrary.open('winspool.drv')
    .lookupFunction<DeletePrinterConnectionANative, DeletePrinterConnectionADart>('DeletePrinterConnectionA');
// pName : LPSTR -> Pointer<Utf8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DeletePrinterConnectionA(
  pName: PAnsiChar   // LPSTR
): BOOL; stdcall;
  external 'winspool.drv' name 'DeletePrinterConnectionA';

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

foreign import stdcall safe "DeletePrinterConnectionA"
  c_DeletePrinterConnectionA :: CString -> IO CInt
-- pName : LPSTR -> CString
-- 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 deleteprinterconnectiona =
  foreign "DeletePrinterConnectionA"
    (string @-> returning int32_t)
(* pName : LPSTR -> string *)
(* 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 ("DeletePrinterConnectionA" delete-printer-connection-a :convention :stdcall) :int32
  (p-name :string))   ; LPSTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DeletePrinterConnectionA = Win32::API::More->new('winspool.drv',
    'BOOL DeletePrinterConnectionA(LPCSTR pName)');
# my $ret = $DeletePrinterConnectionA->Call($pName);
# pName : LPSTR -> LPCSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。