GetDriveTypeA

// KERNEL32.dll  (ANSI / -A)
#include <windows.h>

DWORD GetDriveTypeA(
    LPCSTR lpRootPathName   // optional
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function GetDriveTypeA(
    <MarshalAs(UnmanagedType.LPStr)> lpRootPathName As String   ' LPCSTR optional
) As UInteger
End Function

' lpRootPathName : LPCSTR optional
Declare PtrSafe Function GetDriveTypeA Lib "kernel32" ( _
    ByVal lpRootPathName 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

GetDriveTypeA = ctypes.windll.kernel32.GetDriveTypeA
GetDriveTypeA.restype = wintypes.DWORD
GetDriveTypeA.argtypes = [
    wintypes.LPCSTR,  # lpRootPathName : LPCSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetDriveTypeA = Fiddle::Function.new(
  lib['GetDriveTypeA'],
  [
    Fiddle::TYPE_VOIDP,  # lpRootPathName : LPCSTR optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetDriveTypeA(
        lpRootPathName: *const u8  // LPCSTR optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi)]
public static extern uint GetDriveTypeA([MarshalAs(UnmanagedType.LPStr)] string lpRootPathName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetDriveTypeA' -Namespace Win32 -PassThru
# $api::GetDriveTypeA(lpRootPathName)

#uselib "KERNEL32.dll"
#func global GetDriveTypeA "GetDriveTypeA" sptr
; GetDriveTypeA lpRootPathName   ; 戻り値は stat
; lpRootPathName : 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 "KERNEL32.dll"
#cfunc global GetDriveTypeA "GetDriveTypeA" str
; res = GetDriveTypeA(lpRootPathName)
; lpRootPathName : LPCSTR optional -> "str"

; DWORD GetDriveTypeA(LPCSTR lpRootPathName)
#uselib "KERNEL32.dll"
#cfunc global GetDriveTypeA "GetDriveTypeA" str
; res = GetDriveTypeA(lpRootPathName)
; lpRootPathName : LPCSTR optional -> "str"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetDriveTypeA = kernel32.NewProc("GetDriveTypeA")
)

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

function GetDriveTypeA(
  lpRootPathName: PAnsiChar   // LPCSTR optional
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'GetDriveTypeA';

result := DllCall("KERNEL32\GetDriveTypeA"
    , "AStr", lpRootPathName   ; LPCSTR optional
    , "UInt")   ; return: DWORD

●GetDriveTypeA(lpRootPathName) = DLL("KERNEL32.dll", "dword GetDriveTypeA(char*)")
# 呼び出し: GetDriveTypeA(lpRootPathName)
# lpRootPathName : 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)。