CapabilitiesRequestAndCapabilitiesReply

// dxva2.dll
#include <windows.h>

INT CapabilitiesRequestAndCapabilitiesReply(
    HANDLE hMonitor,
    LPSTR pszASCIICapabilitiesString,
    DWORD dwCapabilitiesStringLengthInCharacters
);

<DllImport("dxva2.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CapabilitiesRequestAndCapabilitiesReply(
    hMonitor As IntPtr,   ' HANDLE
    <MarshalAs(UnmanagedType.LPStr)> pszASCIICapabilitiesString As System.Text.StringBuilder,   ' LPSTR out
    dwCapabilitiesStringLengthInCharacters As UInteger   ' DWORD
) As Integer
End Function

' hMonitor : HANDLE
' pszASCIICapabilitiesString : LPSTR out
' dwCapabilitiesStringLengthInCharacters : DWORD
Declare PtrSafe Function CapabilitiesRequestAndCapabilitiesReply Lib "dxva2" ( _
    ByVal hMonitor As LongPtr, _
    ByVal pszASCIICapabilitiesString As String, _
    ByVal dwCapabilitiesStringLengthInCharacters 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

CapabilitiesRequestAndCapabilitiesReply = ctypes.windll.dxva2.CapabilitiesRequestAndCapabilitiesReply
CapabilitiesRequestAndCapabilitiesReply.restype = ctypes.c_int
CapabilitiesRequestAndCapabilitiesReply.argtypes = [
    wintypes.HANDLE,  # hMonitor : HANDLE
    wintypes.LPSTR,  # pszASCIICapabilitiesString : LPSTR out
    wintypes.DWORD,  # dwCapabilitiesStringLengthInCharacters : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dxva2.dll')
CapabilitiesRequestAndCapabilitiesReply = Fiddle::Function.new(
  lib['CapabilitiesRequestAndCapabilitiesReply'],
  [
    Fiddle::TYPE_VOIDP,  # hMonitor : HANDLE
    Fiddle::TYPE_VOIDP,  # pszASCIICapabilitiesString : LPSTR out
    -Fiddle::TYPE_INT,  # dwCapabilitiesStringLengthInCharacters : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "dxva2")]
extern "system" {
    fn CapabilitiesRequestAndCapabilitiesReply(
        hMonitor: *mut core::ffi::c_void,  // HANDLE
        pszASCIICapabilitiesString: *mut u8,  // LPSTR out
        dwCapabilitiesStringLengthInCharacters: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dxva2.dll", SetLastError = true)]
public static extern int CapabilitiesRequestAndCapabilitiesReply(IntPtr hMonitor, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder pszASCIICapabilitiesString, uint dwCapabilitiesStringLengthInCharacters);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dxva2_CapabilitiesRequestAndCapabilitiesReply' -Namespace Win32 -PassThru
# $api::CapabilitiesRequestAndCapabilitiesReply(hMonitor, pszASCIICapabilitiesString, dwCapabilitiesStringLengthInCharacters)

#uselib "dxva2.dll"
#func global CapabilitiesRequestAndCapabilitiesReply "CapabilitiesRequestAndCapabilitiesReply" sptr, sptr, sptr
; CapabilitiesRequestAndCapabilitiesReply hMonitor, varptr(pszASCIICapabilitiesString), dwCapabilitiesStringLengthInCharacters   ; 戻り値は stat
; hMonitor : HANDLE -> "sptr"
; pszASCIICapabilitiesString : LPSTR out -> "sptr"
; dwCapabilitiesStringLengthInCharacters : 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 "dxva2.dll"
#cfunc global CapabilitiesRequestAndCapabilitiesReply "CapabilitiesRequestAndCapabilitiesReply" sptr, var, int
; res = CapabilitiesRequestAndCapabilitiesReply(hMonitor, pszASCIICapabilitiesString, dwCapabilitiesStringLengthInCharacters)
; hMonitor : HANDLE -> "sptr"
; pszASCIICapabilitiesString : LPSTR out -> "var"
; dwCapabilitiesStringLengthInCharacters : DWORD -> "int"
; ※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。

; INT CapabilitiesRequestAndCapabilitiesReply(HANDLE hMonitor, LPSTR pszASCIICapabilitiesString, DWORD dwCapabilitiesStringLengthInCharacters)
#uselib "dxva2.dll"
#cfunc global CapabilitiesRequestAndCapabilitiesReply "CapabilitiesRequestAndCapabilitiesReply" intptr, var, int
; res = CapabilitiesRequestAndCapabilitiesReply(hMonitor, pszASCIICapabilitiesString, dwCapabilitiesStringLengthInCharacters)
; hMonitor : HANDLE -> "intptr"
; pszASCIICapabilitiesString : LPSTR out -> "var"
; dwCapabilitiesStringLengthInCharacters : DWORD -> "int"
; ※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 (
	dxva2 = windows.NewLazySystemDLL("dxva2.dll")
	procCapabilitiesRequestAndCapabilitiesReply = dxva2.NewProc("CapabilitiesRequestAndCapabilitiesReply")
)

// hMonitor (HANDLE), pszASCIICapabilitiesString (LPSTR out), dwCapabilitiesStringLengthInCharacters (DWORD)
r1, _, err := procCapabilitiesRequestAndCapabilitiesReply.Call(
	uintptr(hMonitor),
	uintptr(pszASCIICapabilitiesString),
	uintptr(dwCapabilitiesStringLengthInCharacters),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function CapabilitiesRequestAndCapabilitiesReply(
  hMonitor: THandle;   // HANDLE
  pszASCIICapabilitiesString: PAnsiChar;   // LPSTR out
  dwCapabilitiesStringLengthInCharacters: DWORD   // DWORD
): Integer; stdcall;
  external 'dxva2.dll' name 'CapabilitiesRequestAndCapabilitiesReply';

result := DllCall("dxva2\CapabilitiesRequestAndCapabilitiesReply"
    , "Ptr", hMonitor   ; HANDLE
    , "Ptr", pszASCIICapabilitiesString   ; LPSTR out
    , "UInt", dwCapabilitiesStringLengthInCharacters   ; DWORD
    , "Int")   ; return: INT

●CapabilitiesRequestAndCapabilitiesReply(hMonitor, pszASCIICapabilitiesString, dwCapabilitiesStringLengthInCharacters) = DLL("dxva2.dll", "int CapabilitiesRequestAndCapabilitiesReply(void*, char*, dword)")
# 呼び出し: CapabilitiesRequestAndCapabilitiesReply(hMonitor, pszASCIICapabilitiesString, dwCapabilitiesStringLengthInCharacters)
# hMonitor : HANDLE -> "void*"
# pszASCIICapabilitiesString : LPSTR out -> "char*"
# dwCapabilitiesStringLengthInCharacters : 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)。