DwmShowContact

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

HRESULT DwmShowContact(
    DWORD dwPointerID,
    DWM_SHOWCONTACT eShowContact
);

<DllImport("dwmapi.dll", ExactSpelling:=True)>
Public Shared Function DwmShowContact(
    dwPointerID As UInteger,   ' DWORD
    eShowContact As UInteger   ' DWM_SHOWCONTACT
) As Integer
End Function

' dwPointerID : DWORD
' eShowContact : DWM_SHOWCONTACT
Declare PtrSafe Function DwmShowContact Lib "dwmapi" ( _
    ByVal dwPointerID As Long, _
    ByVal eShowContact 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

DwmShowContact = ctypes.windll.dwmapi.DwmShowContact
DwmShowContact.restype = ctypes.c_int
DwmShowContact.argtypes = [
    wintypes.DWORD,  # dwPointerID : DWORD
    wintypes.DWORD,  # eShowContact : DWM_SHOWCONTACT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dwmapi.dll')
DwmShowContact = Fiddle::Function.new(
  lib['DwmShowContact'],
  [
    -Fiddle::TYPE_INT,  # dwPointerID : DWORD
    -Fiddle::TYPE_INT,  # eShowContact : DWM_SHOWCONTACT
  ],
  Fiddle::TYPE_INT)

#[link(name = "dwmapi")]
extern "system" {
    fn DwmShowContact(
        dwPointerID: u32,  // DWORD
        eShowContact: u32  // DWM_SHOWCONTACT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dwmapi.dll")]
public static extern int DwmShowContact(uint dwPointerID, uint eShowContact);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dwmapi_DwmShowContact' -Namespace Win32 -PassThru
# $api::DwmShowContact(dwPointerID, eShowContact)

#uselib "dwmapi.dll"
#func global DwmShowContact "DwmShowContact" sptr, sptr
; DwmShowContact dwPointerID, eShowContact   ; 戻り値は stat
; dwPointerID : DWORD -> "sptr"
; eShowContact : DWM_SHOWCONTACT -> "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 "dwmapi.dll"
#cfunc global DwmShowContact "DwmShowContact" int, int
; res = DwmShowContact(dwPointerID, eShowContact)
; dwPointerID : DWORD -> "int"
; eShowContact : DWM_SHOWCONTACT -> "int"

; HRESULT DwmShowContact(DWORD dwPointerID, DWM_SHOWCONTACT eShowContact)
#uselib "dwmapi.dll"
#cfunc global DwmShowContact "DwmShowContact" int, int
; res = DwmShowContact(dwPointerID, eShowContact)
; dwPointerID : DWORD -> "int"
; eShowContact : DWM_SHOWCONTACT -> "int"

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

var (
	dwmapi = windows.NewLazySystemDLL("dwmapi.dll")
	procDwmShowContact = dwmapi.NewProc("DwmShowContact")
)

// dwPointerID (DWORD), eShowContact (DWM_SHOWCONTACT)
r1, _, err := procDwmShowContact.Call(
	uintptr(dwPointerID),
	uintptr(eShowContact),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DwmShowContact(
  dwPointerID: DWORD;   // DWORD
  eShowContact: DWORD   // DWM_SHOWCONTACT
): Integer; stdcall;
  external 'dwmapi.dll' name 'DwmShowContact';

result := DllCall("dwmapi\DwmShowContact"
    , "UInt", dwPointerID   ; DWORD
    , "UInt", eShowContact   ; DWM_SHOWCONTACT
    , "Int")   ; return: HRESULT

●DwmShowContact(dwPointerID, eShowContact) = DLL("dwmapi.dll", "int DwmShowContact(dword, dword)")
# 呼び出し: DwmShowContact(dwPointerID, eShowContact)
# dwPointerID : DWORD -> "dword"
# eShowContact : DWM_SHOWCONTACT -> "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)。