DeleteProfileA

// USERENV.dll  (ANSI / -A)
#include <windows.h>

BOOL DeleteProfileA(
    LPCSTR lpSidString,
    LPCSTR lpProfilePath,   // optional
    LPCSTR lpComputerName   // optional
);

<DllImport("USERENV.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DeleteProfileA(
    <MarshalAs(UnmanagedType.LPStr)> lpSidString As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> lpProfilePath As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpComputerName As String   ' LPCSTR optional
) As Boolean
End Function

' lpSidString : LPCSTR
' lpProfilePath : LPCSTR optional
' lpComputerName : LPCSTR optional
Declare PtrSafe Function DeleteProfileA Lib "userenv" ( _
    ByVal lpSidString As String, _
    ByVal lpProfilePath As String, _
    ByVal lpComputerName 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

DeleteProfileA = ctypes.windll.userenv.DeleteProfileA
DeleteProfileA.restype = wintypes.BOOL
DeleteProfileA.argtypes = [
    wintypes.LPCSTR,  # lpSidString : LPCSTR
    wintypes.LPCSTR,  # lpProfilePath : LPCSTR optional
    wintypes.LPCSTR,  # lpComputerName : LPCSTR optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USERENV.dll')
DeleteProfileA = Fiddle::Function.new(
  lib['DeleteProfileA'],
  [
    Fiddle::TYPE_VOIDP,  # lpSidString : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpProfilePath : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpComputerName : LPCSTR optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "userenv")]
extern "system" {
    fn DeleteProfileA(
        lpSidString: *const u8,  // LPCSTR
        lpProfilePath: *const u8,  // LPCSTR optional
        lpComputerName: *const u8  // LPCSTR optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USERENV.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool DeleteProfileA([MarshalAs(UnmanagedType.LPStr)] string lpSidString, [MarshalAs(UnmanagedType.LPStr)] string lpProfilePath, [MarshalAs(UnmanagedType.LPStr)] string lpComputerName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USERENV_DeleteProfileA' -Namespace Win32 -PassThru
# $api::DeleteProfileA(lpSidString, lpProfilePath, lpComputerName)

#uselib "USERENV.dll"
#func global DeleteProfileA "DeleteProfileA" sptr, sptr, sptr
; DeleteProfileA lpSidString, lpProfilePath, lpComputerName   ; 戻り値は stat
; lpSidString : LPCSTR -> "sptr"
; lpProfilePath : LPCSTR optional -> "sptr"
; lpComputerName : LPCSTR optional -> "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 "USERENV.dll"
#cfunc global DeleteProfileA "DeleteProfileA" str, str, str
; res = DeleteProfileA(lpSidString, lpProfilePath, lpComputerName)
; lpSidString : LPCSTR -> "str"
; lpProfilePath : LPCSTR optional -> "str"
; lpComputerName : LPCSTR optional -> "str"

; BOOL DeleteProfileA(LPCSTR lpSidString, LPCSTR lpProfilePath, LPCSTR lpComputerName)
#uselib "USERENV.dll"
#cfunc global DeleteProfileA "DeleteProfileA" str, str, str
; res = DeleteProfileA(lpSidString, lpProfilePath, lpComputerName)
; lpSidString : LPCSTR -> "str"
; lpProfilePath : LPCSTR optional -> "str"
; lpComputerName : LPCSTR optional -> "str"

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

var (
	userenv = windows.NewLazySystemDLL("USERENV.dll")
	procDeleteProfileA = userenv.NewProc("DeleteProfileA")
)

// lpSidString (LPCSTR), lpProfilePath (LPCSTR optional), lpComputerName (LPCSTR optional)
r1, _, err := procDeleteProfileA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpSidString))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpProfilePath))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpComputerName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DeleteProfileA(
  lpSidString: PAnsiChar;   // LPCSTR
  lpProfilePath: PAnsiChar;   // LPCSTR optional
  lpComputerName: PAnsiChar   // LPCSTR optional
): BOOL; stdcall;
  external 'USERENV.dll' name 'DeleteProfileA';

result := DllCall("USERENV\DeleteProfileA"
    , "AStr", lpSidString   ; LPCSTR
    , "AStr", lpProfilePath   ; LPCSTR optional
    , "AStr", lpComputerName   ; LPCSTR optional
    , "Int")   ; return: BOOL

●DeleteProfileA(lpSidString, lpProfilePath, lpComputerName) = DLL("USERENV.dll", "bool DeleteProfileA(char*, char*, char*)")
# 呼び出し: DeleteProfileA(lpSidString, lpProfilePath, lpComputerName)
# lpSidString : LPCSTR -> "char*"
# lpProfilePath : LPCSTR optional -> "char*"
# lpComputerName : LPCSTR optional -> "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)。