DeletePrinterConnectionW

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

BOOL DeletePrinterConnectionW(
    LPWSTR pName
);

<DllImport("winspool.drv", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function DeletePrinterConnectionW(
    <MarshalAs(UnmanagedType.LPWStr)> pName As String   ' LPWSTR
) As Boolean
End Function

' pName : LPWSTR
Declare PtrSafe Function DeletePrinterConnectionW Lib "winspool.drv" ( _
    ByVal pName As LongPtr) 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

DeletePrinterConnectionW = ctypes.windll.LoadLibrary("winspool.drv").DeletePrinterConnectionW
DeletePrinterConnectionW.restype = wintypes.BOOL
DeletePrinterConnectionW.argtypes = [
    wintypes.LPCWSTR,  # pName : LPWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
DeletePrinterConnectionW = Fiddle::Function.new(
  lib['DeletePrinterConnectionW'],
  [
    Fiddle::TYPE_VOIDP,  # pName : LPWSTR
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winspool.drv")]
extern "system" {
    fn DeletePrinterConnectionW(
        pName: *mut u16  // LPWSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "winspool.drv"
#func global DeletePrinterConnectionW "DeletePrinterConnectionW" wptr
; DeletePrinterConnectionW pName   ; 戻り値は stat
; pName : LPWSTR -> "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。

#uselib "winspool.drv"
#cfunc global DeletePrinterConnectionW "DeletePrinterConnectionW" wstr
; res = DeletePrinterConnectionW(pName)
; pName : LPWSTR -> "wstr"

; BOOL DeletePrinterConnectionW(LPWSTR pName)
#uselib "winspool.drv"
#cfunc global DeletePrinterConnectionW "DeletePrinterConnectionW" wstr
; res = DeletePrinterConnectionW(pName)
; pName : LPWSTR -> "wstr"

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procDeletePrinterConnectionW = winspool_drv.NewProc("DeletePrinterConnectionW")
)

// pName (LPWSTR)
r1, _, err := procDeletePrinterConnectionW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DeletePrinterConnectionW(
  pName: PWideChar   // LPWSTR
): BOOL; stdcall;
  external 'winspool.drv' name 'DeletePrinterConnectionW';

result := DllCall("winspool.drv\DeletePrinterConnectionW"
    , "WStr", pName   ; LPWSTR
    , "Int")   ; return: BOOL

●DeletePrinterConnectionW(pName) = DLL("winspool.drv", "bool DeletePrinterConnectionW(char*)")
# 呼び出し: DeletePrinterConnectionW(pName)
# pName : LPWSTR -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。