SetCaretBlinkTime

// USER32.dll
#include <windows.h>

BOOL SetCaretBlinkTime(
    DWORD uMSeconds
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetCaretBlinkTime(
    uMSeconds As UInteger   ' DWORD
) As Boolean
End Function

' uMSeconds : DWORD
Declare PtrSafe Function SetCaretBlinkTime Lib "user32" ( _
    ByVal uMSeconds As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SetCaretBlinkTime = ctypes.windll.user32.SetCaretBlinkTime
SetCaretBlinkTime.restype = wintypes.BOOL
SetCaretBlinkTime.argtypes = [
    wintypes.DWORD,  # uMSeconds : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
SetCaretBlinkTime = Fiddle::Function.new(
  lib['SetCaretBlinkTime'],
  [
    -Fiddle::TYPE_INT,  # uMSeconds : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn SetCaretBlinkTime(
        uMSeconds: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true)]
public static extern bool SetCaretBlinkTime(uint uMSeconds);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_SetCaretBlinkTime' -Namespace Win32 -PassThru
# $api::SetCaretBlinkTime(uMSeconds)

#uselib "USER32.dll"
#func global SetCaretBlinkTime "SetCaretBlinkTime" sptr
; SetCaretBlinkTime uMSeconds   ; 戻り値は stat
; uMSeconds : DWORD -> "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 "USER32.dll"
#cfunc global SetCaretBlinkTime "SetCaretBlinkTime" int
; res = SetCaretBlinkTime(uMSeconds)
; uMSeconds : DWORD -> "int"

; BOOL SetCaretBlinkTime(DWORD uMSeconds)
#uselib "USER32.dll"
#cfunc global SetCaretBlinkTime "SetCaretBlinkTime" int
; res = SetCaretBlinkTime(uMSeconds)
; uMSeconds : DWORD -> "int"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procSetCaretBlinkTime = user32.NewProc("SetCaretBlinkTime")
)

// uMSeconds (DWORD)
r1, _, err := procSetCaretBlinkTime.Call(
	uintptr(uMSeconds),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetCaretBlinkTime(
  uMSeconds: DWORD   // DWORD
): BOOL; stdcall;
  external 'USER32.dll' name 'SetCaretBlinkTime';

result := DllCall("USER32\SetCaretBlinkTime"
    , "UInt", uMSeconds   ; DWORD
    , "Int")   ; return: BOOL

●SetCaretBlinkTime(uMSeconds) = DLL("USER32.dll", "bool SetCaretBlinkTime(dword)")
# 呼び出し: SetCaretBlinkTime(uMSeconds)
# uMSeconds : DWORD -> "dword"
# 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)。