MsiPreviewBillboardW

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

DWORD MsiPreviewBillboardW(
    MSIHANDLE hPreview,
    LPCWSTR szControlName,
    LPCWSTR szBillboard
);

<DllImport("msi.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function MsiPreviewBillboardW(
    hPreview As UInteger,   ' MSIHANDLE
    <MarshalAs(UnmanagedType.LPWStr)> szControlName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> szBillboard As String   ' LPCWSTR
) As UInteger
End Function

' hPreview : MSIHANDLE
' szControlName : LPCWSTR
' szBillboard : LPCWSTR
Declare PtrSafe Function MsiPreviewBillboardW Lib "msi" ( _
    ByVal hPreview As Long, _
    ByVal szControlName As LongPtr, _
    ByVal szBillboard 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

MsiPreviewBillboardW = ctypes.windll.msi.MsiPreviewBillboardW
MsiPreviewBillboardW.restype = wintypes.DWORD
MsiPreviewBillboardW.argtypes = [
    wintypes.DWORD,  # hPreview : MSIHANDLE
    wintypes.LPCWSTR,  # szControlName : LPCWSTR
    wintypes.LPCWSTR,  # szBillboard : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiPreviewBillboardW = Fiddle::Function.new(
  lib['MsiPreviewBillboardW'],
  [
    -Fiddle::TYPE_INT,  # hPreview : MSIHANDLE
    Fiddle::TYPE_VOIDP,  # szControlName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # szBillboard : LPCWSTR
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "msi")]
extern "system" {
    fn MsiPreviewBillboardW(
        hPreview: u32,  // MSIHANDLE
        szControlName: *const u16,  // LPCWSTR
        szBillboard: *const u16  // LPCWSTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll", CharSet = CharSet.Unicode)]
public static extern uint MsiPreviewBillboardW(uint hPreview, [MarshalAs(UnmanagedType.LPWStr)] string szControlName, [MarshalAs(UnmanagedType.LPWStr)] string szBillboard);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiPreviewBillboardW' -Namespace Win32 -PassThru
# $api::MsiPreviewBillboardW(hPreview, szControlName, szBillboard)

#uselib "msi.dll"
#func global MsiPreviewBillboardW "MsiPreviewBillboardW" wptr, wptr, wptr
; MsiPreviewBillboardW hPreview, szControlName, szBillboard   ; 戻り値は stat
; hPreview : MSIHANDLE -> "wptr"
; szControlName : LPCWSTR -> "wptr"
; szBillboard : LPCWSTR -> "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 MsiPreviewBillboardW "MsiPreviewBillboardW" int, wstr, wstr
; res = MsiPreviewBillboardW(hPreview, szControlName, szBillboard)
; hPreview : MSIHANDLE -> "int"
; szControlName : LPCWSTR -> "wstr"
; szBillboard : LPCWSTR -> "wstr"

; DWORD MsiPreviewBillboardW(MSIHANDLE hPreview, LPCWSTR szControlName, LPCWSTR szBillboard)
#uselib "msi.dll"
#cfunc global MsiPreviewBillboardW "MsiPreviewBillboardW" int, wstr, wstr
; res = MsiPreviewBillboardW(hPreview, szControlName, szBillboard)
; hPreview : MSIHANDLE -> "int"
; szControlName : LPCWSTR -> "wstr"
; szBillboard : LPCWSTR -> "wstr"

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

var (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiPreviewBillboardW = msi.NewProc("MsiPreviewBillboardW")
)

// hPreview (MSIHANDLE), szControlName (LPCWSTR), szBillboard (LPCWSTR)
r1, _, err := procMsiPreviewBillboardW.Call(
	uintptr(hPreview),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szControlName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szBillboard))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiPreviewBillboardW(
  hPreview: DWORD;   // MSIHANDLE
  szControlName: PWideChar;   // LPCWSTR
  szBillboard: PWideChar   // LPCWSTR
): DWORD; stdcall;
  external 'msi.dll' name 'MsiPreviewBillboardW';

result := DllCall("msi\MsiPreviewBillboardW"
    , "UInt", hPreview   ; MSIHANDLE
    , "WStr", szControlName   ; LPCWSTR
    , "WStr", szBillboard   ; LPCWSTR
    , "UInt")   ; return: DWORD

●MsiPreviewBillboardW(hPreview, szControlName, szBillboard) = DLL("msi.dll", "dword MsiPreviewBillboardW(dword, char*, char*)")
# 呼び出し: MsiPreviewBillboardW(hPreview, szControlName, szBillboard)
# hPreview : MSIHANDLE -> "dword"
# szControlName : LPCWSTR -> "char*"
# szBillboard : LPCWSTR -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。