MsiEnumComponentQualifiersW

// msi.dll  (Unicode / -W)
#include <windows.h>

DWORD MsiEnumComponentQualifiersW(
    LPCWSTR szComponent,
    DWORD iIndex,
    LPWSTR lpQualifierBuf,
    DWORD* pcchQualifierBuf,
    LPWSTR lpApplicationDataBuf,   // optional
    DWORD* pcchApplicationDataBuf   // optional
);

<DllImport("msi.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function MsiEnumComponentQualifiersW(
    <MarshalAs(UnmanagedType.LPWStr)> szComponent As String,   ' LPCWSTR
    iIndex As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> lpQualifierBuf As System.Text.StringBuilder,   ' LPWSTR out
    ByRef pcchQualifierBuf As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> lpApplicationDataBuf As System.Text.StringBuilder,   ' LPWSTR optional, out
    pcchApplicationDataBuf As IntPtr   ' DWORD* optional, in/out
) As UInteger
End Function

' szComponent : LPCWSTR
' iIndex : DWORD
' lpQualifierBuf : LPWSTR out
' pcchQualifierBuf : DWORD* in/out
' lpApplicationDataBuf : LPWSTR optional, out
' pcchApplicationDataBuf : DWORD* optional, in/out
Declare PtrSafe Function MsiEnumComponentQualifiersW Lib "msi" ( _
    ByVal szComponent As LongPtr, _
    ByVal iIndex As Long, _
    ByVal lpQualifierBuf As LongPtr, _
    ByRef pcchQualifierBuf As Long, _
    ByVal lpApplicationDataBuf As LongPtr, _
    ByVal pcchApplicationDataBuf 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

MsiEnumComponentQualifiersW = ctypes.windll.msi.MsiEnumComponentQualifiersW
MsiEnumComponentQualifiersW.restype = wintypes.DWORD
MsiEnumComponentQualifiersW.argtypes = [
    wintypes.LPCWSTR,  # szComponent : LPCWSTR
    wintypes.DWORD,  # iIndex : DWORD
    wintypes.LPWSTR,  # lpQualifierBuf : LPWSTR out
    ctypes.POINTER(wintypes.DWORD),  # pcchQualifierBuf : DWORD* in/out
    wintypes.LPWSTR,  # lpApplicationDataBuf : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchApplicationDataBuf : DWORD* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiEnumComponentQualifiersW = Fiddle::Function.new(
  lib['MsiEnumComponentQualifiersW'],
  [
    Fiddle::TYPE_VOIDP,  # szComponent : LPCWSTR
    -Fiddle::TYPE_INT,  # iIndex : DWORD
    Fiddle::TYPE_VOIDP,  # lpQualifierBuf : LPWSTR out
    Fiddle::TYPE_VOIDP,  # pcchQualifierBuf : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # lpApplicationDataBuf : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchApplicationDataBuf : DWORD* optional, in/out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "msi")]
extern "system" {
    fn MsiEnumComponentQualifiersW(
        szComponent: *const u16,  // LPCWSTR
        iIndex: u32,  // DWORD
        lpQualifierBuf: *mut u16,  // LPWSTR out
        pcchQualifierBuf: *mut u32,  // DWORD* in/out
        lpApplicationDataBuf: *mut u16,  // LPWSTR optional, out
        pcchApplicationDataBuf: *mut u32  // DWORD* optional, in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll", CharSet = CharSet.Unicode)]
public static extern uint MsiEnumComponentQualifiersW([MarshalAs(UnmanagedType.LPWStr)] string szComponent, uint iIndex, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpQualifierBuf, ref uint pcchQualifierBuf, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpApplicationDataBuf, IntPtr pcchApplicationDataBuf);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiEnumComponentQualifiersW' -Namespace Win32 -PassThru
# $api::MsiEnumComponentQualifiersW(szComponent, iIndex, lpQualifierBuf, pcchQualifierBuf, lpApplicationDataBuf, pcchApplicationDataBuf)

#uselib "msi.dll"
#func global MsiEnumComponentQualifiersW "MsiEnumComponentQualifiersW" wptr, wptr, wptr, wptr, wptr, wptr
; MsiEnumComponentQualifiersW szComponent, iIndex, varptr(lpQualifierBuf), varptr(pcchQualifierBuf), varptr(lpApplicationDataBuf), varptr(pcchApplicationDataBuf)   ; 戻り値は stat
; szComponent : LPCWSTR -> "wptr"
; iIndex : DWORD -> "wptr"
; lpQualifierBuf : LPWSTR out -> "wptr"
; pcchQualifierBuf : DWORD* in/out -> "wptr"
; lpApplicationDataBuf : LPWSTR optional, out -> "wptr"
; pcchApplicationDataBuf : DWORD* optional, in/out -> "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 "msi.dll"
#cfunc global MsiEnumComponentQualifiersW "MsiEnumComponentQualifiersW" wstr, int, var, var, var, var
; res = MsiEnumComponentQualifiersW(szComponent, iIndex, lpQualifierBuf, pcchQualifierBuf, lpApplicationDataBuf, pcchApplicationDataBuf)
; szComponent : LPCWSTR -> "wstr"
; iIndex : DWORD -> "int"
; lpQualifierBuf : LPWSTR out -> "var"
; pcchQualifierBuf : DWORD* in/out -> "var"
; lpApplicationDataBuf : LPWSTR optional, out -> "var"
; pcchApplicationDataBuf : DWORD* optional, in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; DWORD MsiEnumComponentQualifiersW(LPCWSTR szComponent, DWORD iIndex, LPWSTR lpQualifierBuf, DWORD* pcchQualifierBuf, LPWSTR lpApplicationDataBuf, DWORD* pcchApplicationDataBuf)
#uselib "msi.dll"
#cfunc global MsiEnumComponentQualifiersW "MsiEnumComponentQualifiersW" wstr, int, var, var, var, var
; res = MsiEnumComponentQualifiersW(szComponent, iIndex, lpQualifierBuf, pcchQualifierBuf, lpApplicationDataBuf, pcchApplicationDataBuf)
; szComponent : LPCWSTR -> "wstr"
; iIndex : DWORD -> "int"
; lpQualifierBuf : LPWSTR out -> "var"
; pcchQualifierBuf : DWORD* in/out -> "var"
; lpApplicationDataBuf : LPWSTR optional, out -> "var"
; pcchApplicationDataBuf : DWORD* optional, in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiEnumComponentQualifiersW = msi.NewProc("MsiEnumComponentQualifiersW")
)

// szComponent (LPCWSTR), iIndex (DWORD), lpQualifierBuf (LPWSTR out), pcchQualifierBuf (DWORD* in/out), lpApplicationDataBuf (LPWSTR optional, out), pcchApplicationDataBuf (DWORD* optional, in/out)
r1, _, err := procMsiEnumComponentQualifiersW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szComponent))),
	uintptr(iIndex),
	uintptr(lpQualifierBuf),
	uintptr(pcchQualifierBuf),
	uintptr(lpApplicationDataBuf),
	uintptr(pcchApplicationDataBuf),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiEnumComponentQualifiersW(
  szComponent: PWideChar;   // LPCWSTR
  iIndex: DWORD;   // DWORD
  lpQualifierBuf: PWideChar;   // LPWSTR out
  pcchQualifierBuf: Pointer;   // DWORD* in/out
  lpApplicationDataBuf: PWideChar;   // LPWSTR optional, out
  pcchApplicationDataBuf: Pointer   // DWORD* optional, in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiEnumComponentQualifiersW';

result := DllCall("msi\MsiEnumComponentQualifiersW"
    , "WStr", szComponent   ; LPCWSTR
    , "UInt", iIndex   ; DWORD
    , "Ptr", lpQualifierBuf   ; LPWSTR out
    , "Ptr", pcchQualifierBuf   ; DWORD* in/out
    , "Ptr", lpApplicationDataBuf   ; LPWSTR optional, out
    , "Ptr", pcchApplicationDataBuf   ; DWORD* optional, in/out
    , "UInt")   ; return: DWORD

●MsiEnumComponentQualifiersW(szComponent, iIndex, lpQualifierBuf, pcchQualifierBuf, lpApplicationDataBuf, pcchApplicationDataBuf) = DLL("msi.dll", "dword MsiEnumComponentQualifiersW(char*, dword, char*, void*, char*, void*)")
# 呼び出し: MsiEnumComponentQualifiersW(szComponent, iIndex, lpQualifierBuf, pcchQualifierBuf, lpApplicationDataBuf, pcchApplicationDataBuf)
# szComponent : LPCWSTR -> "char*"
# iIndex : DWORD -> "dword"
# lpQualifierBuf : LPWSTR out -> "char*"
# pcchQualifierBuf : DWORD* in/out -> "void*"
# lpApplicationDataBuf : LPWSTR optional, out -> "char*"
# pcchApplicationDataBuf : DWORD* optional, in/out -> "void*"
# 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。