DeletePortA

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

BOOL DeletePortA(
    LPCSTR pName,   // optional
    HWND hWnd,
    LPCSTR pPortName
);

<DllImport("winspool.drv", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DeletePortA(
    <MarshalAs(UnmanagedType.LPStr)> pName As String,   ' LPCSTR optional
    hWnd As IntPtr,   ' HWND
    <MarshalAs(UnmanagedType.LPStr)> pPortName As String   ' LPCSTR
) As Boolean
End Function

' pName : LPCSTR optional
' hWnd : HWND
' pPortName : LPCSTR
Declare PtrSafe Function DeletePortA Lib "winspool.drv" ( _
    ByVal pName As String, _
    ByVal hWnd As LongPtr, _
    ByVal pPortName 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

DeletePortA = ctypes.windll.LoadLibrary("winspool.drv").DeletePortA
DeletePortA.restype = wintypes.BOOL
DeletePortA.argtypes = [
    wintypes.LPCSTR,  # pName : LPCSTR optional
    wintypes.HANDLE,  # hWnd : HWND
    wintypes.LPCSTR,  # pPortName : LPCSTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
DeletePortA = Fiddle::Function.new(
  lib['DeletePortA'],
  [
    Fiddle::TYPE_VOIDP,  # pName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # pPortName : LPCSTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "winspool.drv")]
extern "system" {
    fn DeletePortA(
        pName: *const u8,  // LPCSTR optional
        hWnd: *mut core::ffi::c_void,  // HWND
        pPortName: *const u8  // LPCSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "winspool.drv"
#func global DeletePortA "DeletePortA" sptr, sptr, sptr
; DeletePortA pName, hWnd, pPortName   ; 戻り値は stat
; pName : LPCSTR optional -> "sptr"
; hWnd : HWND -> "sptr"
; pPortName : LPCSTR -> "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 DeletePortA "DeletePortA" str, sptr, str
; res = DeletePortA(pName, hWnd, pPortName)
; pName : LPCSTR optional -> "str"
; hWnd : HWND -> "sptr"
; pPortName : LPCSTR -> "str"

; BOOL DeletePortA(LPCSTR pName, HWND hWnd, LPCSTR pPortName)
#uselib "winspool.drv"
#cfunc global DeletePortA "DeletePortA" str, intptr, str
; res = DeletePortA(pName, hWnd, pPortName)
; pName : LPCSTR optional -> "str"
; hWnd : HWND -> "intptr"
; pPortName : LPCSTR -> "str"

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procDeletePortA = winspool_drv.NewProc("DeletePortA")
)

// pName (LPCSTR optional), hWnd (HWND), pPortName (LPCSTR)
r1, _, err := procDeletePortA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pName))),
	uintptr(hWnd),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pPortName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DeletePortA(
  pName: PAnsiChar;   // LPCSTR optional
  hWnd: THandle;   // HWND
  pPortName: PAnsiChar   // LPCSTR
): BOOL; stdcall;
  external 'winspool.drv' name 'DeletePortA';

result := DllCall("winspool.drv\DeletePortA"
    , "AStr", pName   ; LPCSTR optional
    , "Ptr", hWnd   ; HWND
    , "AStr", pPortName   ; LPCSTR
    , "Int")   ; return: BOOL

●DeletePortA(pName, hWnd, pPortName) = DLL("winspool.drv", "bool DeletePortA(char*, void*, char*)")
# 呼び出し: DeletePortA(pName, hWnd, pPortName)
# pName : LPCSTR optional -> "char*"
# hWnd : HWND -> "void*"
# pPortName : LPCSTR -> "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)。