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HidP_GetSpecificValueCaps
関数指定した条件に一致するHID値の能力情報を取得する。
シグネチャ
// HID.dll
#include <windows.h>
NTSTATUS HidP_GetSpecificValueCaps(
HIDP_REPORT_TYPE ReportType,
WORD UsagePage, // optional
WORD LinkCollection, // optional
WORD Usage, // optional
HIDP_VALUE_CAPS* ValueCaps,
WORD* ValueCapsLength,
PHIDP_PREPARSED_DATA PreparsedData
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| ReportType | HIDP_REPORT_TYPE | in | 対象のレポート種別をHIDP_REPORT_TYPE(Input/Output/Feature)で指定する。 |
| UsagePage | WORD | inoptional | 絞り込み対象のユーセージページを指定する。0で全ページを対象とする。 |
| LinkCollection | WORD | inoptional | 絞り込み対象のリンクコレクションを指定する。0で全コレクションを対象とする。 |
| Usage | WORD | inoptional | 絞り込み対象のユーセージを指定する。0で全ユーセージを対象とする。 |
| ValueCaps | HIDP_VALUE_CAPS* | out | 条件に一致する値能力情報配列(HIDP_VALUE_CAPS)を受け取るバッファへのポインタを指定する。 |
| ValueCapsLength | WORD* | inout | 入出力で配列の容量を指定し、実際の要素数を受け取るWORDへのポインタを指定する。 |
| PreparsedData | PHIDP_PREPARSED_DATA | in | HidD_GetPreparsedDataで取得した前解析データへのポインタを指定する。 |
戻り値の型: NTSTATUS
各言語での呼び出し定義
// HID.dll
#include <windows.h>
NTSTATUS HidP_GetSpecificValueCaps(
HIDP_REPORT_TYPE ReportType,
WORD UsagePage, // optional
WORD LinkCollection, // optional
WORD Usage, // optional
HIDP_VALUE_CAPS* ValueCaps,
WORD* ValueCapsLength,
PHIDP_PREPARSED_DATA PreparsedData
);[DllImport("HID.dll", ExactSpelling = true)]
static extern int HidP_GetSpecificValueCaps(
int ReportType, // HIDP_REPORT_TYPE
ushort UsagePage, // WORD optional
ushort LinkCollection, // WORD optional
ushort Usage, // WORD optional
IntPtr ValueCaps, // HIDP_VALUE_CAPS* out
ref ushort ValueCapsLength, // WORD* in/out
IntPtr PreparsedData // PHIDP_PREPARSED_DATA
);<DllImport("HID.dll", ExactSpelling:=True)>
Public Shared Function HidP_GetSpecificValueCaps(
ReportType As Integer, ' HIDP_REPORT_TYPE
UsagePage As UShort, ' WORD optional
LinkCollection As UShort, ' WORD optional
Usage As UShort, ' WORD optional
ValueCaps As IntPtr, ' HIDP_VALUE_CAPS* out
ByRef ValueCapsLength As UShort, ' WORD* in/out
PreparsedData As IntPtr ' PHIDP_PREPARSED_DATA
) As Integer
End Function' ReportType : HIDP_REPORT_TYPE
' UsagePage : WORD optional
' LinkCollection : WORD optional
' Usage : WORD optional
' ValueCaps : HIDP_VALUE_CAPS* out
' ValueCapsLength : WORD* in/out
' PreparsedData : PHIDP_PREPARSED_DATA
Declare PtrSafe Function HidP_GetSpecificValueCaps Lib "hid" ( _
ByVal ReportType As Long, _
ByVal UsagePage As Integer, _
ByVal LinkCollection As Integer, _
ByVal Usage As Integer, _
ByVal ValueCaps As LongPtr, _
ByRef ValueCapsLength As Integer, _
ByVal PreparsedData As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
HidP_GetSpecificValueCaps = ctypes.windll.hid.HidP_GetSpecificValueCaps
HidP_GetSpecificValueCaps.restype = ctypes.c_int
HidP_GetSpecificValueCaps.argtypes = [
ctypes.c_int, # ReportType : HIDP_REPORT_TYPE
ctypes.c_ushort, # UsagePage : WORD optional
ctypes.c_ushort, # LinkCollection : WORD optional
ctypes.c_ushort, # Usage : WORD optional
ctypes.c_void_p, # ValueCaps : HIDP_VALUE_CAPS* out
ctypes.POINTER(ctypes.c_ushort), # ValueCapsLength : WORD* in/out
ctypes.c_ssize_t, # PreparsedData : PHIDP_PREPARSED_DATA
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('HID.dll')
HidP_GetSpecificValueCaps = Fiddle::Function.new(
lib['HidP_GetSpecificValueCaps'],
[
Fiddle::TYPE_INT, # ReportType : HIDP_REPORT_TYPE
-Fiddle::TYPE_SHORT, # UsagePage : WORD optional
-Fiddle::TYPE_SHORT, # LinkCollection : WORD optional
-Fiddle::TYPE_SHORT, # Usage : WORD optional
Fiddle::TYPE_VOIDP, # ValueCaps : HIDP_VALUE_CAPS* out
Fiddle::TYPE_VOIDP, # ValueCapsLength : WORD* in/out
Fiddle::TYPE_INTPTR_T, # PreparsedData : PHIDP_PREPARSED_DATA
],
Fiddle::TYPE_INT)#[link(name = "hid")]
extern "system" {
fn HidP_GetSpecificValueCaps(
ReportType: i32, // HIDP_REPORT_TYPE
UsagePage: u16, // WORD optional
LinkCollection: u16, // WORD optional
Usage: u16, // WORD optional
ValueCaps: *mut HIDP_VALUE_CAPS, // HIDP_VALUE_CAPS* out
ValueCapsLength: *mut u16, // WORD* in/out
PreparsedData: isize // PHIDP_PREPARSED_DATA
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("HID.dll")]
public static extern int HidP_GetSpecificValueCaps(int ReportType, ushort UsagePage, ushort LinkCollection, ushort Usage, IntPtr ValueCaps, ref ushort ValueCapsLength, IntPtr PreparsedData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'HID_HidP_GetSpecificValueCaps' -Namespace Win32 -PassThru
# $api::HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData)#uselib "HID.dll"
#func global HidP_GetSpecificValueCaps "HidP_GetSpecificValueCaps" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; HidP_GetSpecificValueCaps ReportType, UsagePage, LinkCollection, Usage, varptr(ValueCaps), varptr(ValueCapsLength), PreparsedData ; 戻り値は stat
; ReportType : HIDP_REPORT_TYPE -> "sptr"
; UsagePage : WORD optional -> "sptr"
; LinkCollection : WORD optional -> "sptr"
; Usage : WORD optional -> "sptr"
; ValueCaps : HIDP_VALUE_CAPS* out -> "sptr"
; ValueCapsLength : WORD* in/out -> "sptr"
; PreparsedData : PHIDP_PREPARSED_DATA -> "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。出力引数:
#uselib "HID.dll" #cfunc global HidP_GetSpecificValueCaps "HidP_GetSpecificValueCaps" int, int, int, int, var, var, sptr ; res = HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData) ; ReportType : HIDP_REPORT_TYPE -> "int" ; UsagePage : WORD optional -> "int" ; LinkCollection : WORD optional -> "int" ; Usage : WORD optional -> "int" ; ValueCaps : HIDP_VALUE_CAPS* out -> "var" ; ValueCapsLength : WORD* in/out -> "var" ; PreparsedData : PHIDP_PREPARSED_DATA -> "sptr" ; ※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。#uselib "HID.dll" #cfunc global HidP_GetSpecificValueCaps "HidP_GetSpecificValueCaps" int, int, int, int, sptr, sptr, sptr ; res = HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, varptr(ValueCaps), varptr(ValueCapsLength), PreparsedData) ; ReportType : HIDP_REPORT_TYPE -> "int" ; UsagePage : WORD optional -> "int" ; LinkCollection : WORD optional -> "int" ; Usage : WORD optional -> "int" ; ValueCaps : HIDP_VALUE_CAPS* out -> "sptr" ; ValueCapsLength : WORD* in/out -> "sptr" ; PreparsedData : PHIDP_PREPARSED_DATA -> "sptr" ; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。
出力引数:
; NTSTATUS HidP_GetSpecificValueCaps(HIDP_REPORT_TYPE ReportType, WORD UsagePage, WORD LinkCollection, WORD Usage, HIDP_VALUE_CAPS* ValueCaps, WORD* ValueCapsLength, PHIDP_PREPARSED_DATA PreparsedData) #uselib "HID.dll" #cfunc global HidP_GetSpecificValueCaps "HidP_GetSpecificValueCaps" int, int, int, int, var, var, intptr ; res = HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData) ; ReportType : HIDP_REPORT_TYPE -> "int" ; UsagePage : WORD optional -> "int" ; LinkCollection : WORD optional -> "int" ; Usage : WORD optional -> "int" ; ValueCaps : HIDP_VALUE_CAPS* out -> "var" ; ValueCapsLength : WORD* in/out -> "var" ; PreparsedData : PHIDP_PREPARSED_DATA -> "intptr" ; ※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。; NTSTATUS HidP_GetSpecificValueCaps(HIDP_REPORT_TYPE ReportType, WORD UsagePage, WORD LinkCollection, WORD Usage, HIDP_VALUE_CAPS* ValueCaps, WORD* ValueCapsLength, PHIDP_PREPARSED_DATA PreparsedData) #uselib "HID.dll" #cfunc global HidP_GetSpecificValueCaps "HidP_GetSpecificValueCaps" int, int, int, int, intptr, intptr, intptr ; res = HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, varptr(ValueCaps), varptr(ValueCapsLength), PreparsedData) ; ReportType : HIDP_REPORT_TYPE -> "int" ; UsagePage : WORD optional -> "int" ; LinkCollection : WORD optional -> "int" ; Usage : WORD optional -> "int" ; ValueCaps : HIDP_VALUE_CAPS* out -> "intptr" ; ValueCapsLength : WORD* in/out -> "intptr" ; PreparsedData : PHIDP_PREPARSED_DATA -> "intptr" ; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。
import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
hid = windows.NewLazySystemDLL("HID.dll")
procHidP_GetSpecificValueCaps = hid.NewProc("HidP_GetSpecificValueCaps")
)
// ReportType (HIDP_REPORT_TYPE), UsagePage (WORD optional), LinkCollection (WORD optional), Usage (WORD optional), ValueCaps (HIDP_VALUE_CAPS* out), ValueCapsLength (WORD* in/out), PreparsedData (PHIDP_PREPARSED_DATA)
r1, _, err := procHidP_GetSpecificValueCaps.Call(
uintptr(ReportType),
uintptr(UsagePage),
uintptr(LinkCollection),
uintptr(Usage),
uintptr(ValueCaps),
uintptr(ValueCapsLength),
uintptr(PreparsedData),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // NTSTATUSfunction HidP_GetSpecificValueCaps(
ReportType: Integer; // HIDP_REPORT_TYPE
UsagePage: Word; // WORD optional
LinkCollection: Word; // WORD optional
Usage: Word; // WORD optional
ValueCaps: Pointer; // HIDP_VALUE_CAPS* out
ValueCapsLength: Pointer; // WORD* in/out
PreparsedData: NativeInt // PHIDP_PREPARSED_DATA
): Integer; stdcall;
external 'HID.dll' name 'HidP_GetSpecificValueCaps';result := DllCall("HID\HidP_GetSpecificValueCaps"
, "Int", ReportType ; HIDP_REPORT_TYPE
, "UShort", UsagePage ; WORD optional
, "UShort", LinkCollection ; WORD optional
, "UShort", Usage ; WORD optional
, "Ptr", ValueCaps ; HIDP_VALUE_CAPS* out
, "Ptr", ValueCapsLength ; WORD* in/out
, "Ptr", PreparsedData ; PHIDP_PREPARSED_DATA
, "Int") ; return: NTSTATUS●HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData) = DLL("HID.dll", "int HidP_GetSpecificValueCaps(int, int, int, int, void*, void*, int)")
# 呼び出し: HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData)
# ReportType : HIDP_REPORT_TYPE -> "int"
# UsagePage : WORD optional -> "int"
# LinkCollection : WORD optional -> "int"
# Usage : WORD optional -> "int"
# ValueCaps : HIDP_VALUE_CAPS* out -> "void*"
# ValueCapsLength : WORD* in/out -> "void*"
# PreparsedData : PHIDP_PREPARSED_DATA -> "int"
# 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)。const std = @import("std");
extern "hid" fn HidP_GetSpecificValueCaps(
ReportType: i32, // HIDP_REPORT_TYPE
UsagePage: u16, // WORD optional
LinkCollection: u16, // WORD optional
Usage: u16, // WORD optional
ValueCaps: [*c]HIDP_VALUE_CAPS, // HIDP_VALUE_CAPS* out
ValueCapsLength: [*c]u16, // WORD* in/out
PreparsedData: isize // PHIDP_PREPARSED_DATA
) callconv(std.os.windows.WINAPI) i32;proc HidP_GetSpecificValueCaps(
ReportType: int32, # HIDP_REPORT_TYPE
UsagePage: uint16, # WORD optional
LinkCollection: uint16, # WORD optional
Usage: uint16, # WORD optional
ValueCaps: ptr HIDP_VALUE_CAPS, # HIDP_VALUE_CAPS* out
ValueCapsLength: ptr uint16, # WORD* in/out
PreparsedData: int # PHIDP_PREPARSED_DATA
): int32 {.importc: "HidP_GetSpecificValueCaps", stdcall, dynlib: "HID.dll".}pragma(lib, "hid");
extern(Windows)
int HidP_GetSpecificValueCaps(
int ReportType, // HIDP_REPORT_TYPE
ushort UsagePage, // WORD optional
ushort LinkCollection, // WORD optional
ushort Usage, // WORD optional
HIDP_VALUE_CAPS* ValueCaps, // HIDP_VALUE_CAPS* out
ushort* ValueCapsLength, // WORD* in/out
ptrdiff_t PreparsedData // PHIDP_PREPARSED_DATA
);ccall((:HidP_GetSpecificValueCaps, "HID.dll"), stdcall, Int32,
(Int32, UInt16, UInt16, UInt16, Ptr{HIDP_VALUE_CAPS}, Ptr{UInt16}, Int),
ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData)
# ReportType : HIDP_REPORT_TYPE -> Int32
# UsagePage : WORD optional -> UInt16
# LinkCollection : WORD optional -> UInt16
# Usage : WORD optional -> UInt16
# ValueCaps : HIDP_VALUE_CAPS* out -> Ptr{HIDP_VALUE_CAPS}
# ValueCapsLength : WORD* in/out -> Ptr{UInt16}
# PreparsedData : PHIDP_PREPARSED_DATA -> Int
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
int32_t HidP_GetSpecificValueCaps(
int32_t ReportType,
uint16_t UsagePage,
uint16_t LinkCollection,
uint16_t Usage,
void* ValueCaps,
uint16_t* ValueCapsLength,
intptr_t PreparsedData);
]]
local hid = ffi.load("hid")
-- hid.HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData)
-- ReportType : HIDP_REPORT_TYPE
-- UsagePage : WORD optional
-- LinkCollection : WORD optional
-- Usage : WORD optional
-- ValueCaps : HIDP_VALUE_CAPS* out
-- ValueCapsLength : WORD* in/out
-- PreparsedData : PHIDP_PREPARSED_DATA
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。const koffi = require('koffi');
const lib = koffi.load('HID.dll');
const HidP_GetSpecificValueCaps = lib.func('__stdcall', 'HidP_GetSpecificValueCaps', 'int32_t', ['int32_t', 'uint16_t', 'uint16_t', 'uint16_t', 'void *', 'uint16_t *', 'intptr_t']);
// HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData)
// ReportType : HIDP_REPORT_TYPE -> 'int32_t'
// UsagePage : WORD optional -> 'uint16_t'
// LinkCollection : WORD optional -> 'uint16_t'
// Usage : WORD optional -> 'uint16_t'
// ValueCaps : HIDP_VALUE_CAPS* out -> 'void *'
// ValueCapsLength : WORD* in/out -> 'uint16_t *'
// PreparsedData : PHIDP_PREPARSED_DATA -> 'intptr_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。const lib = Deno.dlopen("HID.dll", {
HidP_GetSpecificValueCaps: { parameters: ["i32", "u16", "u16", "u16", "pointer", "pointer", "isize"], result: "i32" },
});
// lib.symbols.HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData)
// ReportType : HIDP_REPORT_TYPE -> "i32"
// UsagePage : WORD optional -> "u16"
// LinkCollection : WORD optional -> "u16"
// Usage : WORD optional -> "u16"
// ValueCaps : HIDP_VALUE_CAPS* out -> "pointer"
// ValueCapsLength : WORD* in/out -> "pointer"
// PreparsedData : PHIDP_PREPARSED_DATA -> "isize"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。<?php
$ffi = FFI::cdef(<<<C
int32_t HidP_GetSpecificValueCaps(
int32_t ReportType,
uint16_t UsagePage,
uint16_t LinkCollection,
uint16_t Usage,
void* ValueCaps,
uint16_t* ValueCapsLength,
intptr_t PreparsedData);
C, "HID.dll");
// $ffi->HidP_GetSpecificValueCaps(ReportType, UsagePage, LinkCollection, Usage, ValueCaps, ValueCapsLength, PreparsedData);
// ReportType : HIDP_REPORT_TYPE
// UsagePage : WORD optional
// LinkCollection : WORD optional
// Usage : WORD optional
// ValueCaps : HIDP_VALUE_CAPS* out
// ValueCapsLength : WORD* in/out
// PreparsedData : PHIDP_PREPARSED_DATA
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Hid extends StdCallLibrary {
Hid INSTANCE = Native.load("hid", Hid.class);
int HidP_GetSpecificValueCaps(
int ReportType, // HIDP_REPORT_TYPE
short UsagePage, // WORD optional
short LinkCollection, // WORD optional
short Usage, // WORD optional
Pointer ValueCaps, // HIDP_VALUE_CAPS* out
ShortByReference ValueCapsLength, // WORD* in/out
long PreparsedData // PHIDP_PREPARSED_DATA
);
}@[Link("hid")]
lib LibHID
fun HidP_GetSpecificValueCaps = HidP_GetSpecificValueCaps(
ReportType : Int32, # HIDP_REPORT_TYPE
UsagePage : UInt16, # WORD optional
LinkCollection : UInt16, # WORD optional
Usage : UInt16, # WORD optional
ValueCaps : HIDP_VALUE_CAPS*, # HIDP_VALUE_CAPS* out
ValueCapsLength : UInt16*, # WORD* in/out
PreparsedData : LibC::SSizeT # PHIDP_PREPARSED_DATA
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef HidP_GetSpecificValueCapsNative = Int32 Function(Int32, Uint16, Uint16, Uint16, Pointer<Void>, Pointer<Uint16>, IntPtr);
typedef HidP_GetSpecificValueCapsDart = int Function(int, int, int, int, Pointer<Void>, Pointer<Uint16>, int);
final HidP_GetSpecificValueCaps = DynamicLibrary.open('HID.dll')
.lookupFunction<HidP_GetSpecificValueCapsNative, HidP_GetSpecificValueCapsDart>('HidP_GetSpecificValueCaps');
// ReportType : HIDP_REPORT_TYPE -> Int32
// UsagePage : WORD optional -> Uint16
// LinkCollection : WORD optional -> Uint16
// Usage : WORD optional -> Uint16
// ValueCaps : HIDP_VALUE_CAPS* out -> Pointer<Void>
// ValueCapsLength : WORD* in/out -> Pointer<Uint16>
// PreparsedData : PHIDP_PREPARSED_DATA -> IntPtr
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function HidP_GetSpecificValueCaps(
ReportType: Integer; // HIDP_REPORT_TYPE
UsagePage: Word; // WORD optional
LinkCollection: Word; // WORD optional
Usage: Word; // WORD optional
ValueCaps: Pointer; // HIDP_VALUE_CAPS* out
ValueCapsLength: Pointer; // WORD* in/out
PreparsedData: NativeInt // PHIDP_PREPARSED_DATA
): Integer; stdcall;
external 'HID.dll' name 'HidP_GetSpecificValueCaps';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "HidP_GetSpecificValueCaps"
c_HidP_GetSpecificValueCaps :: Int32 -> Word16 -> Word16 -> Word16 -> Ptr () -> Ptr Word16 -> CIntPtr -> IO Int32
-- ReportType : HIDP_REPORT_TYPE -> Int32
-- UsagePage : WORD optional -> Word16
-- LinkCollection : WORD optional -> Word16
-- Usage : WORD optional -> Word16
-- ValueCaps : HIDP_VALUE_CAPS* out -> Ptr ()
-- ValueCapsLength : WORD* in/out -> Ptr Word16
-- PreparsedData : PHIDP_PREPARSED_DATA -> CIntPtr
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。open Ctypes
open Foreign
let hidp_getspecificvaluecaps =
foreign "HidP_GetSpecificValueCaps"
(int32_t @-> uint16_t @-> uint16_t @-> uint16_t @-> (ptr void) @-> (ptr uint16_t) @-> intptr_t @-> returning int32_t)
(* ReportType : HIDP_REPORT_TYPE -> int32_t *)
(* UsagePage : WORD optional -> uint16_t *)
(* LinkCollection : WORD optional -> uint16_t *)
(* Usage : WORD optional -> uint16_t *)
(* ValueCaps : HIDP_VALUE_CAPS* out -> (ptr void) *)
(* ValueCapsLength : WORD* in/out -> (ptr uint16_t) *)
(* PreparsedData : PHIDP_PREPARSED_DATA -> intptr_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)(cffi:define-foreign-library hid (t "HID.dll"))
(cffi:use-foreign-library hid)
(cffi:defcfun ("HidP_GetSpecificValueCaps" hid-p-get-specific-value-caps :convention :stdcall) :int32
(report-type :int32) ; HIDP_REPORT_TYPE
(usage-page :uint16) ; WORD optional
(link-collection :uint16) ; WORD optional
(usage :uint16) ; WORD optional
(value-caps :pointer) ; HIDP_VALUE_CAPS* out
(value-caps-length :pointer) ; WORD* in/out
(preparsed-data :int64)) ; PHIDP_PREPARSED_DATA
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $HidP_GetSpecificValueCaps = Win32::API::More->new('HID',
'int HidP_GetSpecificValueCaps(int ReportType, WORD UsagePage, WORD LinkCollection, WORD Usage, LPVOID ValueCaps, LPVOID ValueCapsLength, LPARAM PreparsedData)');
# my $ret = $HidP_GetSpecificValueCaps->Call($ReportType, $UsagePage, $LinkCollection, $Usage, $ValueCaps, $ValueCapsLength, $PreparsedData);
# ReportType : HIDP_REPORT_TYPE -> int
# UsagePage : WORD optional -> WORD
# LinkCollection : WORD optional -> WORD
# Usage : WORD optional -> WORD
# ValueCaps : HIDP_VALUE_CAPS* out -> LPVOID
# ValueCapsLength : WORD* in/out -> LPVOID
# PreparsedData : PHIDP_PREPARSED_DATA -> LPARAM
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。