InternetSetDialStateA

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

BOOL InternetSetDialStateA(
    LPCSTR lpszConnectoid,   // optional
    DWORD dwState,
    DWORD dwReserved   // optional
);

<DllImport("WININET.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function InternetSetDialStateA(
    <MarshalAs(UnmanagedType.LPStr)> lpszConnectoid As String,   ' LPCSTR optional
    dwState As UInteger,   ' DWORD
    dwReserved As UInteger   ' DWORD optional
) As Boolean
End Function

' lpszConnectoid : LPCSTR optional
' dwState : DWORD
' dwReserved : DWORD optional
Declare PtrSafe Function InternetSetDialStateA Lib "wininet" ( _
    ByVal lpszConnectoid As String, _
    ByVal dwState As Long, _
    ByVal dwReserved As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

InternetSetDialStateA = ctypes.windll.wininet.InternetSetDialStateA
InternetSetDialStateA.restype = wintypes.BOOL
InternetSetDialStateA.argtypes = [
    wintypes.LPCSTR,  # lpszConnectoid : LPCSTR optional
    wintypes.DWORD,  # dwState : DWORD
    wintypes.DWORD,  # dwReserved : DWORD optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WININET.dll')
InternetSetDialStateA = Fiddle::Function.new(
  lib['InternetSetDialStateA'],
  [
    Fiddle::TYPE_VOIDP,  # lpszConnectoid : LPCSTR optional
    -Fiddle::TYPE_INT,  # dwState : DWORD
    -Fiddle::TYPE_INT,  # dwReserved : DWORD optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "wininet")]
extern "system" {
    fn InternetSetDialStateA(
        lpszConnectoid: *const u8,  // LPCSTR optional
        dwState: u32,  // DWORD
        dwReserved: u32  // DWORD optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WININET.dll", CharSet = CharSet.Ansi)]
public static extern bool InternetSetDialStateA([MarshalAs(UnmanagedType.LPStr)] string lpszConnectoid, uint dwState, uint dwReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WININET_InternetSetDialStateA' -Namespace Win32 -PassThru
# $api::InternetSetDialStateA(lpszConnectoid, dwState, dwReserved)

#uselib "WININET.dll"
#func global InternetSetDialStateA "InternetSetDialStateA" sptr, sptr, sptr
; InternetSetDialStateA lpszConnectoid, dwState, dwReserved   ; 戻り値は stat
; lpszConnectoid : LPCSTR optional -> "sptr"
; dwState : DWORD -> "sptr"
; dwReserved : DWORD 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 "WININET.dll"
#cfunc global InternetSetDialStateA "InternetSetDialStateA" str, int, int
; res = InternetSetDialStateA(lpszConnectoid, dwState, dwReserved)
; lpszConnectoid : LPCSTR optional -> "str"
; dwState : DWORD -> "int"
; dwReserved : DWORD optional -> "int"

; BOOL InternetSetDialStateA(LPCSTR lpszConnectoid, DWORD dwState, DWORD dwReserved)
#uselib "WININET.dll"
#cfunc global InternetSetDialStateA "InternetSetDialStateA" str, int, int
; res = InternetSetDialStateA(lpszConnectoid, dwState, dwReserved)
; lpszConnectoid : LPCSTR optional -> "str"
; dwState : DWORD -> "int"
; dwReserved : DWORD optional -> "int"

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

var (
	wininet = windows.NewLazySystemDLL("WININET.dll")
	procInternetSetDialStateA = wininet.NewProc("InternetSetDialStateA")
)

// lpszConnectoid (LPCSTR optional), dwState (DWORD), dwReserved (DWORD optional)
r1, _, err := procInternetSetDialStateA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpszConnectoid))),
	uintptr(dwState),
	uintptr(dwReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function InternetSetDialStateA(
  lpszConnectoid: PAnsiChar;   // LPCSTR optional
  dwState: DWORD;   // DWORD
  dwReserved: DWORD   // DWORD optional
): BOOL; stdcall;
  external 'WININET.dll' name 'InternetSetDialStateA';

result := DllCall("WININET\InternetSetDialStateA"
    , "AStr", lpszConnectoid   ; LPCSTR optional
    , "UInt", dwState   ; DWORD
    , "UInt", dwReserved   ; DWORD optional
    , "Int")   ; return: BOOL

●InternetSetDialStateA(lpszConnectoid, dwState, dwReserved) = DLL("WININET.dll", "bool InternetSetDialStateA(char*, dword, dword)")
# 呼び出し: InternetSetDialStateA(lpszConnectoid, dwState, dwReserved)
# lpszConnectoid : LPCSTR optional -> "char*"
# dwState : DWORD -> "dword"
# dwReserved : DWORD optional -> "dword"
# 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)。