MsiProvideAssemblyA

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

DWORD MsiProvideAssemblyA(
    LPCSTR szAssemblyName,
    LPCSTR szAppContext,   // optional
    DWORD dwInstallMode,
    MSIASSEMBLYINFO dwAssemblyInfo,
    LPSTR lpPathBuf,   // optional
    DWORD* pcchPathBuf   // optional
);

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

' szAssemblyName : LPCSTR
' szAppContext : LPCSTR optional
' dwInstallMode : DWORD
' dwAssemblyInfo : MSIASSEMBLYINFO
' lpPathBuf : LPSTR optional, out
' pcchPathBuf : DWORD* optional, in/out
Declare PtrSafe Function MsiProvideAssemblyA Lib "msi" ( _
    ByVal szAssemblyName As String, _
    ByVal szAppContext As String, _
    ByVal dwInstallMode As Long, _
    ByVal dwAssemblyInfo 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

MsiProvideAssemblyA = ctypes.windll.msi.MsiProvideAssemblyA
MsiProvideAssemblyA.restype = wintypes.DWORD
MsiProvideAssemblyA.argtypes = [
    wintypes.LPCSTR,  # szAssemblyName : LPCSTR
    wintypes.LPCSTR,  # szAppContext : LPCSTR optional
    wintypes.DWORD,  # dwInstallMode : DWORD
    wintypes.DWORD,  # dwAssemblyInfo : MSIASSEMBLYINFO
    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')
MsiProvideAssemblyA = Fiddle::Function.new(
  lib['MsiProvideAssemblyA'],
  [
    Fiddle::TYPE_VOIDP,  # szAssemblyName : LPCSTR
    Fiddle::TYPE_VOIDP,  # szAppContext : LPCSTR optional
    -Fiddle::TYPE_INT,  # dwInstallMode : DWORD
    -Fiddle::TYPE_INT,  # dwAssemblyInfo : MSIASSEMBLYINFO
    Fiddle::TYPE_VOIDP,  # lpPathBuf : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchPathBuf : DWORD* optional, in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "msi")]
extern "system" {
    fn MsiProvideAssemblyA(
        szAssemblyName: *const u8,  // LPCSTR
        szAppContext: *const u8,  // LPCSTR optional
        dwInstallMode: u32,  // DWORD
        dwAssemblyInfo: u32,  // MSIASSEMBLYINFO
        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 MsiProvideAssemblyA([MarshalAs(UnmanagedType.LPStr)] string szAssemblyName, [MarshalAs(UnmanagedType.LPStr)] string szAppContext, uint dwInstallMode, uint dwAssemblyInfo, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpPathBuf, IntPtr pcchPathBuf);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiProvideAssemblyA' -Namespace Win32 -PassThru
# $api::MsiProvideAssemblyA(szAssemblyName, szAppContext, dwInstallMode, dwAssemblyInfo, lpPathBuf, pcchPathBuf)

#uselib "msi.dll"
#func global MsiProvideAssemblyA "MsiProvideAssemblyA" sptr, sptr, sptr, sptr, sptr, sptr
; MsiProvideAssemblyA szAssemblyName, szAppContext, dwInstallMode, dwAssemblyInfo, varptr(lpPathBuf), varptr(pcchPathBuf)   ; 戻り値は stat
; szAssemblyName : LPCSTR -> "sptr"
; szAppContext : LPCSTR optional -> "sptr"
; dwInstallMode : DWORD -> "sptr"
; dwAssemblyInfo : MSIASSEMBLYINFO -> "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 MsiProvideAssemblyA "MsiProvideAssemblyA" str, str, int, int, var, var
; res = MsiProvideAssemblyA(szAssemblyName, szAppContext, dwInstallMode, dwAssemblyInfo, lpPathBuf, pcchPathBuf)
; szAssemblyName : LPCSTR -> "str"
; szAppContext : LPCSTR optional -> "str"
; dwInstallMode : DWORD -> "int"
; dwAssemblyInfo : MSIASSEMBLYINFO -> "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 MsiProvideAssemblyA(LPCSTR szAssemblyName, LPCSTR szAppContext, DWORD dwInstallMode, MSIASSEMBLYINFO dwAssemblyInfo, LPSTR lpPathBuf, DWORD* pcchPathBuf)
#uselib "msi.dll"
#cfunc global MsiProvideAssemblyA "MsiProvideAssemblyA" str, str, int, int, var, var
; res = MsiProvideAssemblyA(szAssemblyName, szAppContext, dwInstallMode, dwAssemblyInfo, lpPathBuf, pcchPathBuf)
; szAssemblyName : LPCSTR -> "str"
; szAppContext : LPCSTR optional -> "str"
; dwInstallMode : DWORD -> "int"
; dwAssemblyInfo : MSIASSEMBLYINFO -> "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")
	procMsiProvideAssemblyA = msi.NewProc("MsiProvideAssemblyA")
)

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

function MsiProvideAssemblyA(
  szAssemblyName: PAnsiChar;   // LPCSTR
  szAppContext: PAnsiChar;   // LPCSTR optional
  dwInstallMode: DWORD;   // DWORD
  dwAssemblyInfo: DWORD;   // MSIASSEMBLYINFO
  lpPathBuf: PAnsiChar;   // LPSTR optional, out
  pcchPathBuf: Pointer   // DWORD* optional, in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiProvideAssemblyA';

result := DllCall("msi\MsiProvideAssemblyA"
    , "AStr", szAssemblyName   ; LPCSTR
    , "AStr", szAppContext   ; LPCSTR optional
    , "UInt", dwInstallMode   ; DWORD
    , "UInt", dwAssemblyInfo   ; MSIASSEMBLYINFO
    , "Ptr", lpPathBuf   ; LPSTR optional, out
    , "Ptr", pcchPathBuf   ; DWORD* optional, in/out
    , "UInt")   ; return: DWORD

●MsiProvideAssemblyA(szAssemblyName, szAppContext, dwInstallMode, dwAssemblyInfo, lpPathBuf, pcchPathBuf) = DLL("msi.dll", "dword MsiProvideAssemblyA(char*, char*, dword, dword, char*, void*)")
# 呼び出し: MsiProvideAssemblyA(szAssemblyName, szAppContext, dwInstallMode, dwAssemblyInfo, lpPathBuf, pcchPathBuf)
# szAssemblyName : LPCSTR -> "char*"
# szAppContext : LPCSTR optional -> "char*"
# dwInstallMode : DWORD -> "dword"
# dwAssemblyInfo : MSIASSEMBLYINFO -> "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)。