DeletePrintProvidorW

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

BOOL DeletePrintProvidorW(
    LPWSTR pName,   // optional
    LPWSTR pEnvironment,   // optional
    LPWSTR pPrintProvidorName
);

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

' pName : LPWSTR optional
' pEnvironment : LPWSTR optional
' pPrintProvidorName : LPWSTR
Declare PtrSafe Function DeletePrintProvidorW Lib "winspool.drv" ( _
    ByVal pName As LongPtr, _
    ByVal pEnvironment As LongPtr, _
    ByVal pPrintProvidorName 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

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

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "winspool.drv")]
extern "system" {
    fn DeletePrintProvidorW(
        pName: *mut u16,  // LPWSTR optional
        pEnvironment: *mut u16,  // LPWSTR optional
        pPrintProvidorName: *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 DeletePrintProvidorW([MarshalAs(UnmanagedType.LPWStr)] string pName, [MarshalAs(UnmanagedType.LPWStr)] string pEnvironment, [MarshalAs(UnmanagedType.LPWStr)] string pPrintProvidorName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_DeletePrintProvidorW' -Namespace Win32 -PassThru
# $api::DeletePrintProvidorW(pName, pEnvironment, pPrintProvidorName)

#uselib "winspool.drv"
#func global DeletePrintProvidorW "DeletePrintProvidorW" wptr, wptr, wptr
; DeletePrintProvidorW pName, pEnvironment, pPrintProvidorName   ; 戻り値は stat
; pName : LPWSTR optional -> "wptr"
; pEnvironment : LPWSTR optional -> "wptr"
; pPrintProvidorName : 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 DeletePrintProvidorW "DeletePrintProvidorW" wstr, wstr, wstr
; res = DeletePrintProvidorW(pName, pEnvironment, pPrintProvidorName)
; pName : LPWSTR optional -> "wstr"
; pEnvironment : LPWSTR optional -> "wstr"
; pPrintProvidorName : LPWSTR -> "wstr"

; BOOL DeletePrintProvidorW(LPWSTR pName, LPWSTR pEnvironment, LPWSTR pPrintProvidorName)
#uselib "winspool.drv"
#cfunc global DeletePrintProvidorW "DeletePrintProvidorW" wstr, wstr, wstr
; res = DeletePrintProvidorW(pName, pEnvironment, pPrintProvidorName)
; pName : LPWSTR optional -> "wstr"
; pEnvironment : LPWSTR optional -> "wstr"
; pPrintProvidorName : LPWSTR -> "wstr"

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procDeletePrintProvidorW = winspool_drv.NewProc("DeletePrintProvidorW")
)

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

function DeletePrintProvidorW(
  pName: PWideChar;   // LPWSTR optional
  pEnvironment: PWideChar;   // LPWSTR optional
  pPrintProvidorName: PWideChar   // LPWSTR
): BOOL; stdcall;
  external 'winspool.drv' name 'DeletePrintProvidorW';

result := DllCall("winspool.drv\DeletePrintProvidorW"
    , "WStr", pName   ; LPWSTR optional
    , "WStr", pEnvironment   ; LPWSTR optional
    , "WStr", pPrintProvidorName   ; LPWSTR
    , "Int")   ; return: BOOL

●DeletePrintProvidorW(pName, pEnvironment, pPrintProvidorName) = DLL("winspool.drv", "bool DeletePrintProvidorW(char*, char*, char*)")
# 呼び出し: DeletePrintProvidorW(pName, pEnvironment, pPrintProvidorName)
# pName : LPWSTR optional -> "char*"
# pEnvironment : LPWSTR optional -> "char*"
# pPrintProvidorName : 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。