FillConsoleOutputCharacterW

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

BOOL FillConsoleOutputCharacterW(
    HANDLE hConsoleOutput,
    WCHAR cCharacter,
    DWORD nLength,
    COORD dwWriteCoord,
    DWORD* lpNumberOfCharsWritten
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function FillConsoleOutputCharacterW(
    hConsoleOutput As IntPtr,   ' HANDLE
    cCharacter As Char,   ' WCHAR
    nLength As UInteger,   ' DWORD
    dwWriteCoord As COORD,   ' COORD
    <Out> ByRef lpNumberOfCharsWritten As UInteger   ' DWORD* out
) As Boolean
End Function

' hConsoleOutput : HANDLE
' cCharacter : WCHAR
' nLength : DWORD
' dwWriteCoord : COORD
' lpNumberOfCharsWritten : DWORD* out
Declare PtrSafe Function FillConsoleOutputCharacterW Lib "kernel32" ( _
    ByVal hConsoleOutput As LongPtr, _
    ByVal cCharacter As Integer, _
    ByVal nLength As Long, _
    ByVal dwWriteCoord As LongPtr, _
    ByRef lpNumberOfCharsWritten As Long) 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

FillConsoleOutputCharacterW = ctypes.windll.kernel32.FillConsoleOutputCharacterW
FillConsoleOutputCharacterW.restype = wintypes.BOOL
FillConsoleOutputCharacterW.argtypes = [
    wintypes.HANDLE,  # hConsoleOutput : HANDLE
    ctypes.c_wchar,  # cCharacter : WCHAR
    wintypes.DWORD,  # nLength : DWORD
    COORD,  # dwWriteCoord : COORD
    ctypes.POINTER(wintypes.DWORD),  # lpNumberOfCharsWritten : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
FillConsoleOutputCharacterW = Fiddle::Function.new(
  lib['FillConsoleOutputCharacterW'],
  [
    Fiddle::TYPE_VOIDP,  # hConsoleOutput : HANDLE
    Fiddle::TYPE_SHORT,  # cCharacter : WCHAR
    -Fiddle::TYPE_INT,  # nLength : DWORD
    Fiddle::TYPE_VOIDP,  # dwWriteCoord : COORD
    Fiddle::TYPE_VOIDP,  # lpNumberOfCharsWritten : DWORD* out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn FillConsoleOutputCharacterW(
        hConsoleOutput: *mut core::ffi::c_void,  // HANDLE
        cCharacter: u16,  // WCHAR
        nLength: u32,  // DWORD
        dwWriteCoord: COORD,  // COORD
        lpNumberOfCharsWritten: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool FillConsoleOutputCharacterW(IntPtr hConsoleOutput, char cCharacter, uint nLength, COORD dwWriteCoord, out uint lpNumberOfCharsWritten);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_FillConsoleOutputCharacterW' -Namespace Win32 -PassThru
# $api::FillConsoleOutputCharacterW(hConsoleOutput, cCharacter, nLength, dwWriteCoord, lpNumberOfCharsWritten)

#uselib "KERNEL32.dll"
#func global FillConsoleOutputCharacterW "FillConsoleOutputCharacterW" wptr, wptr, wptr, wptr, wptr
; FillConsoleOutputCharacterW hConsoleOutput, cCharacter, nLength, dwWriteCoord, varptr(lpNumberOfCharsWritten)   ; 戻り値は stat
; hConsoleOutput : HANDLE -> "wptr"
; cCharacter : WCHAR -> "wptr"
; nLength : DWORD -> "wptr"
; dwWriteCoord : COORD -> "wptr"
; lpNumberOfCharsWritten : DWORD* out -> "wptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "KERNEL32.dll"
#cfunc global FillConsoleOutputCharacterW "FillConsoleOutputCharacterW" sptr, int, int, int, var
; res = FillConsoleOutputCharacterW(hConsoleOutput, cCharacter, nLength, dwWriteCoord, lpNumberOfCharsWritten)
; hConsoleOutput : HANDLE -> "sptr"
; cCharacter : WCHAR -> "int"
; nLength : DWORD -> "int"
; dwWriteCoord : COORD -> "int"
; lpNumberOfCharsWritten : DWORD* out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 FillConsoleOutputCharacterW(HANDLE hConsoleOutput, WCHAR cCharacter, DWORD nLength, COORD dwWriteCoord, DWORD* lpNumberOfCharsWritten)
#uselib "KERNEL32.dll"
#cfunc global FillConsoleOutputCharacterW "FillConsoleOutputCharacterW" intptr, int, int, int, var
; res = FillConsoleOutputCharacterW(hConsoleOutput, cCharacter, nLength, dwWriteCoord, lpNumberOfCharsWritten)
; hConsoleOutput : HANDLE -> "intptr"
; cCharacter : WCHAR -> "int"
; nLength : DWORD -> "int"
; dwWriteCoord : COORD -> "int"
; lpNumberOfCharsWritten : DWORD* out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procFillConsoleOutputCharacterW = kernel32.NewProc("FillConsoleOutputCharacterW")
)

// hConsoleOutput (HANDLE), cCharacter (WCHAR), nLength (DWORD), dwWriteCoord (COORD), lpNumberOfCharsWritten (DWORD* out)
r1, _, err := procFillConsoleOutputCharacterW.Call(
	uintptr(hConsoleOutput),
	uintptr(cCharacter),
	uintptr(nLength),
	uintptr(dwWriteCoord),
	uintptr(lpNumberOfCharsWritten),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function FillConsoleOutputCharacterW(
  hConsoleOutput: THandle;   // HANDLE
  cCharacter: WideChar;   // WCHAR
  nLength: DWORD;   // DWORD
  dwWriteCoord: COORD;   // COORD
  lpNumberOfCharsWritten: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'FillConsoleOutputCharacterW';

result := DllCall("KERNEL32\FillConsoleOutputCharacterW"
    , "Ptr", hConsoleOutput   ; HANDLE
    , "Short", cCharacter   ; WCHAR
    , "UInt", nLength   ; DWORD
    , "Ptr", dwWriteCoord   ; COORD
    , "Ptr", lpNumberOfCharsWritten   ; DWORD* out
    , "Int")   ; return: BOOL

●FillConsoleOutputCharacterW(hConsoleOutput, cCharacter, nLength, dwWriteCoord, lpNumberOfCharsWritten) = DLL("KERNEL32.dll", "bool FillConsoleOutputCharacterW(void*, int, dword, void*, void*)")
# 呼び出し: FillConsoleOutputCharacterW(hConsoleOutput, cCharacter, nLength, dwWriteCoord, lpNumberOfCharsWritten)
# hConsoleOutput : HANDLE -> "void*"
# cCharacter : WCHAR -> "int"
# nLength : DWORD -> "dword"
# dwWriteCoord : COORD -> "void*"
# lpNumberOfCharsWritten : DWORD* 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。