Shell_NotifyIconW

// SHELL32.dll  (Unicode / -W)
#include <windows.h>

BOOL Shell_NotifyIconW(
    NOTIFY_ICON_MESSAGE dwMessage,
    NOTIFYICONDATAW* lpData
);

<DllImport("SHELL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function Shell_NotifyIconW(
    dwMessage As UInteger,   ' NOTIFY_ICON_MESSAGE
    lpData As IntPtr   ' NOTIFYICONDATAW*
) As Boolean
End Function

' dwMessage : NOTIFY_ICON_MESSAGE
' lpData : NOTIFYICONDATAW*
Declare PtrSafe Function Shell_NotifyIconW Lib "shell32" ( _
    ByVal dwMessage As Long, _
    ByVal lpData 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

Shell_NotifyIconW = ctypes.windll.shell32.Shell_NotifyIconW
Shell_NotifyIconW.restype = wintypes.BOOL
Shell_NotifyIconW.argtypes = [
    wintypes.DWORD,  # dwMessage : NOTIFY_ICON_MESSAGE
    ctypes.c_void_p,  # lpData : NOTIFYICONDATAW*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
Shell_NotifyIconW = Fiddle::Function.new(
  lib['Shell_NotifyIconW'],
  [
    -Fiddle::TYPE_INT,  # dwMessage : NOTIFY_ICON_MESSAGE
    Fiddle::TYPE_VOIDP,  # lpData : NOTIFYICONDATAW*
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "shell32")]
extern "system" {
    fn Shell_NotifyIconW(
        dwMessage: u32,  // NOTIFY_ICON_MESSAGE
        lpData: *mut NOTIFYICONDATAW  // NOTIFYICONDATAW*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll", CharSet = CharSet.Unicode)]
public static extern bool Shell_NotifyIconW(uint dwMessage, IntPtr lpData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_Shell_NotifyIconW' -Namespace Win32 -PassThru
# $api::Shell_NotifyIconW(dwMessage, lpData)

#uselib "SHELL32.dll"
#func global Shell_NotifyIconW "Shell_NotifyIconW" wptr, wptr
; Shell_NotifyIconW dwMessage, varptr(lpData)   ; 戻り値は stat
; dwMessage : NOTIFY_ICON_MESSAGE -> "wptr"
; lpData : NOTIFYICONDATAW* -> "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 "SHELL32.dll"
#cfunc global Shell_NotifyIconW "Shell_NotifyIconW" int, var
; res = Shell_NotifyIconW(dwMessage, lpData)
; dwMessage : NOTIFY_ICON_MESSAGE -> "int"
; lpData : NOTIFYICONDATAW* -> "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。

; BOOL Shell_NotifyIconW(NOTIFY_ICON_MESSAGE dwMessage, NOTIFYICONDATAW* lpData)
#uselib "SHELL32.dll"
#cfunc global Shell_NotifyIconW "Shell_NotifyIconW" int, var
; res = Shell_NotifyIconW(dwMessage, lpData)
; dwMessage : NOTIFY_ICON_MESSAGE -> "int"
; lpData : NOTIFYICONDATAW* -> "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 (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procShell_NotifyIconW = shell32.NewProc("Shell_NotifyIconW")
)

// dwMessage (NOTIFY_ICON_MESSAGE), lpData (NOTIFYICONDATAW*)
r1, _, err := procShell_NotifyIconW.Call(
	uintptr(dwMessage),
	uintptr(lpData),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function Shell_NotifyIconW(
  dwMessage: DWORD;   // NOTIFY_ICON_MESSAGE
  lpData: Pointer   // NOTIFYICONDATAW*
): BOOL; stdcall;
  external 'SHELL32.dll' name 'Shell_NotifyIconW';

result := DllCall("SHELL32\Shell_NotifyIconW"
    , "UInt", dwMessage   ; NOTIFY_ICON_MESSAGE
    , "Ptr", lpData   ; NOTIFYICONDATAW*
    , "Int")   ; return: BOOL

●Shell_NotifyIconW(dwMessage, lpData) = DLL("SHELL32.dll", "bool Shell_NotifyIconW(dword, void*)")
# 呼び出し: Shell_NotifyIconW(dwMessage, lpData)
# dwMessage : NOTIFY_ICON_MESSAGE -> "dword"
# lpData : NOTIFYICONDATAW* -> "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。