MsiProvideComponentA

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

DWORD MsiProvideComponentA(
    LPCSTR szProduct,
    LPCSTR szFeature,
    LPCSTR szComponent,
    DWORD dwInstallMode,
    LPSTR lpPathBuf,   // optional
    DWORD* pcchPathBuf   // optional
);

<DllImport("msi.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function MsiProvideComponentA(
    <MarshalAs(UnmanagedType.LPStr)> szProduct As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> szFeature As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> szComponent As String,   ' LPCSTR
    dwInstallMode As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> lpPathBuf As System.Text.StringBuilder,   ' LPSTR optional, out
    pcchPathBuf As IntPtr   ' DWORD* optional, in/out
) As UInteger
End Function

' szProduct : LPCSTR
' szFeature : LPCSTR
' szComponent : LPCSTR
' dwInstallMode : DWORD
' lpPathBuf : LPSTR optional, out
' pcchPathBuf : DWORD* optional, in/out
Declare PtrSafe Function MsiProvideComponentA Lib "msi" ( _
    ByVal szProduct As String, _
    ByVal szFeature As String, _
    ByVal szComponent As String, _
    ByVal dwInstallMode As Long, _
    ByVal lpPathBuf As String, _
    ByVal pcchPathBuf As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

MsiProvideComponentA = ctypes.windll.msi.MsiProvideComponentA
MsiProvideComponentA.restype = wintypes.DWORD
MsiProvideComponentA.argtypes = [
    wintypes.LPCSTR,  # szProduct : LPCSTR
    wintypes.LPCSTR,  # szFeature : LPCSTR
    wintypes.LPCSTR,  # szComponent : LPCSTR
    wintypes.DWORD,  # dwInstallMode : DWORD
    wintypes.LPSTR,  # lpPathBuf : LPSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchPathBuf : DWORD* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiProvideComponentA = Fiddle::Function.new(
  lib['MsiProvideComponentA'],
  [
    Fiddle::TYPE_VOIDP,  # szProduct : LPCSTR
    Fiddle::TYPE_VOIDP,  # szFeature : LPCSTR
    Fiddle::TYPE_VOIDP,  # szComponent : LPCSTR
    -Fiddle::TYPE_INT,  # dwInstallMode : DWORD
    Fiddle::TYPE_VOIDP,  # lpPathBuf : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchPathBuf : DWORD* optional, in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "msi")]
extern "system" {
    fn MsiProvideComponentA(
        szProduct: *const u8,  // LPCSTR
        szFeature: *const u8,  // LPCSTR
        szComponent: *const u8,  // LPCSTR
        dwInstallMode: u32,  // DWORD
        lpPathBuf: *mut u8,  // LPSTR optional, out
        pcchPathBuf: *mut u32  // DWORD* optional, in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll", CharSet = CharSet.Ansi)]
public static extern uint MsiProvideComponentA([MarshalAs(UnmanagedType.LPStr)] string szProduct, [MarshalAs(UnmanagedType.LPStr)] string szFeature, [MarshalAs(UnmanagedType.LPStr)] string szComponent, uint dwInstallMode, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpPathBuf, IntPtr pcchPathBuf);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiProvideComponentA' -Namespace Win32 -PassThru
# $api::MsiProvideComponentA(szProduct, szFeature, szComponent, dwInstallMode, lpPathBuf, pcchPathBuf)

#uselib "msi.dll"
#func global MsiProvideComponentA "MsiProvideComponentA" sptr, sptr, sptr, sptr, sptr, sptr
; MsiProvideComponentA szProduct, szFeature, szComponent, dwInstallMode, varptr(lpPathBuf), varptr(pcchPathBuf)   ; 戻り値は stat
; szProduct : LPCSTR -> "sptr"
; szFeature : LPCSTR -> "sptr"
; szComponent : LPCSTR -> "sptr"
; dwInstallMode : DWORD -> "sptr"
; lpPathBuf : LPSTR optional, out -> "sptr"
; pcchPathBuf : DWORD* optional, in/out -> "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 "msi.dll"
#cfunc global MsiProvideComponentA "MsiProvideComponentA" str, str, str, int, var, var
; res = MsiProvideComponentA(szProduct, szFeature, szComponent, dwInstallMode, lpPathBuf, pcchPathBuf)
; szProduct : LPCSTR -> "str"
; szFeature : LPCSTR -> "str"
; szComponent : LPCSTR -> "str"
; dwInstallMode : DWORD -> "int"
; lpPathBuf : LPSTR optional, out -> "var"
; pcchPathBuf : 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 MsiProvideComponentA(LPCSTR szProduct, LPCSTR szFeature, LPCSTR szComponent, DWORD dwInstallMode, LPSTR lpPathBuf, DWORD* pcchPathBuf)
#uselib "msi.dll"
#cfunc global MsiProvideComponentA "MsiProvideComponentA" str, str, str, int, var, var
; res = MsiProvideComponentA(szProduct, szFeature, szComponent, dwInstallMode, lpPathBuf, pcchPathBuf)
; szProduct : LPCSTR -> "str"
; szFeature : LPCSTR -> "str"
; szComponent : LPCSTR -> "str"
; dwInstallMode : DWORD -> "int"
; lpPathBuf : LPSTR optional, out -> "var"
; pcchPathBuf : 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")
	procMsiProvideComponentA = msi.NewProc("MsiProvideComponentA")
)

// szProduct (LPCSTR), szFeature (LPCSTR), szComponent (LPCSTR), dwInstallMode (DWORD), lpPathBuf (LPSTR optional, out), pcchPathBuf (DWORD* optional, in/out)
r1, _, err := procMsiProvideComponentA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szProduct))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szFeature))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szComponent))),
	uintptr(dwInstallMode),
	uintptr(lpPathBuf),
	uintptr(pcchPathBuf),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiProvideComponentA(
  szProduct: PAnsiChar;   // LPCSTR
  szFeature: PAnsiChar;   // LPCSTR
  szComponent: PAnsiChar;   // LPCSTR
  dwInstallMode: DWORD;   // DWORD
  lpPathBuf: PAnsiChar;   // LPSTR optional, out
  pcchPathBuf: Pointer   // DWORD* optional, in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiProvideComponentA';

result := DllCall("msi\MsiProvideComponentA"
    , "AStr", szProduct   ; LPCSTR
    , "AStr", szFeature   ; LPCSTR
    , "AStr", szComponent   ; LPCSTR
    , "UInt", dwInstallMode   ; DWORD
    , "Ptr", lpPathBuf   ; LPSTR optional, out
    , "Ptr", pcchPathBuf   ; DWORD* optional, in/out
    , "UInt")   ; return: DWORD

●MsiProvideComponentA(szProduct, szFeature, szComponent, dwInstallMode, lpPathBuf, pcchPathBuf) = DLL("msi.dll", "dword MsiProvideComponentA(char*, char*, char*, dword, char*, void*)")
# 呼び出し: MsiProvideComponentA(szProduct, szFeature, szComponent, dwInstallMode, lpPathBuf, pcchPathBuf)
# szProduct : LPCSTR -> "char*"
# szFeature : LPCSTR -> "char*"
# szComponent : LPCSTR -> "char*"
# dwInstallMode : DWORD -> "dword"
# lpPathBuf : LPSTR optional, out -> "char*"
# pcchPathBuf : 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)。