DCompositionGetTargetStatistics

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

HRESULT DCompositionGetTargetStatistics(
    ULONGLONG frameId,
    const COMPOSITION_TARGET_ID* targetId,
    COMPOSITION_TARGET_STATS* targetStats
);

<DllImport("dcomp.dll", ExactSpelling:=True)>
Public Shared Function DCompositionGetTargetStatistics(
    frameId As ULong,   ' ULONGLONG
    targetId As IntPtr,   ' COMPOSITION_TARGET_ID*
    targetStats As IntPtr   ' COMPOSITION_TARGET_STATS* out
) As Integer
End Function

' frameId : ULONGLONG
' targetId : COMPOSITION_TARGET_ID*
' targetStats : COMPOSITION_TARGET_STATS* out
Declare PtrSafe Function DCompositionGetTargetStatistics Lib "dcomp" ( _
    ByVal frameId As LongLong, _
    ByVal targetId As LongPtr, _
    ByVal targetStats 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

DCompositionGetTargetStatistics = ctypes.windll.dcomp.DCompositionGetTargetStatistics
DCompositionGetTargetStatistics.restype = ctypes.c_int
DCompositionGetTargetStatistics.argtypes = [
    ctypes.c_ulonglong,  # frameId : ULONGLONG
    ctypes.c_void_p,  # targetId : COMPOSITION_TARGET_ID*
    ctypes.c_void_p,  # targetStats : COMPOSITION_TARGET_STATS* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dcomp.dll')
DCompositionGetTargetStatistics = Fiddle::Function.new(
  lib['DCompositionGetTargetStatistics'],
  [
    -Fiddle::TYPE_LONG_LONG,  # frameId : ULONGLONG
    Fiddle::TYPE_VOIDP,  # targetId : COMPOSITION_TARGET_ID*
    Fiddle::TYPE_VOIDP,  # targetStats : COMPOSITION_TARGET_STATS* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dcomp")]
extern "system" {
    fn DCompositionGetTargetStatistics(
        frameId: u64,  // ULONGLONG
        targetId: *const COMPOSITION_TARGET_ID,  // COMPOSITION_TARGET_ID*
        targetStats: *mut COMPOSITION_TARGET_STATS  // COMPOSITION_TARGET_STATS* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dcomp.dll")]
public static extern int DCompositionGetTargetStatistics(ulong frameId, IntPtr targetId, IntPtr targetStats);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dcomp_DCompositionGetTargetStatistics' -Namespace Win32 -PassThru
# $api::DCompositionGetTargetStatistics(frameId, targetId, targetStats)

#uselib "dcomp.dll"
#func global DCompositionGetTargetStatistics "DCompositionGetTargetStatistics" sptr, sptr, sptr
; DCompositionGetTargetStatistics frameId, varptr(targetId), varptr(targetStats)   ; 戻り値は stat
; frameId : ULONGLONG -> "sptr"
; targetId : COMPOSITION_TARGET_ID* -> "sptr"
; targetStats : COMPOSITION_TARGET_STATS* out -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 "dcomp.dll"
#cfunc global DCompositionGetTargetStatistics "DCompositionGetTargetStatistics" int64, var, var
; res = DCompositionGetTargetStatistics(frameId, targetId, targetStats)
; frameId : ULONGLONG -> "int64"
; targetId : COMPOSITION_TARGET_ID* -> "var"
; targetStats : COMPOSITION_TARGET_STATS* out -> "var"
; ※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。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。

; HRESULT DCompositionGetTargetStatistics(ULONGLONG frameId, COMPOSITION_TARGET_ID* targetId, COMPOSITION_TARGET_STATS* targetStats)
#uselib "dcomp.dll"
#cfunc global DCompositionGetTargetStatistics "DCompositionGetTargetStatistics" int64, var, var
; res = DCompositionGetTargetStatistics(frameId, targetId, targetStats)
; frameId : ULONGLONG -> "int64"
; targetId : COMPOSITION_TARGET_ID* -> "var"
; targetStats : COMPOSITION_TARGET_STATS* out -> "var"
; ※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 (
	dcomp = windows.NewLazySystemDLL("dcomp.dll")
	procDCompositionGetTargetStatistics = dcomp.NewProc("DCompositionGetTargetStatistics")
)

// frameId (ULONGLONG), targetId (COMPOSITION_TARGET_ID*), targetStats (COMPOSITION_TARGET_STATS* out)
r1, _, err := procDCompositionGetTargetStatistics.Call(
	uintptr(frameId),
	uintptr(targetId),
	uintptr(targetStats),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DCompositionGetTargetStatistics(
  frameId: UInt64;   // ULONGLONG
  targetId: Pointer;   // COMPOSITION_TARGET_ID*
  targetStats: Pointer   // COMPOSITION_TARGET_STATS* out
): Integer; stdcall;
  external 'dcomp.dll' name 'DCompositionGetTargetStatistics';

result := DllCall("dcomp\DCompositionGetTargetStatistics"
    , "Int64", frameId   ; ULONGLONG
    , "Ptr", targetId   ; COMPOSITION_TARGET_ID*
    , "Ptr", targetStats   ; COMPOSITION_TARGET_STATS* out
    , "Int")   ; return: HRESULT

●DCompositionGetTargetStatistics(frameId, targetId, targetStats) = DLL("dcomp.dll", "int DCompositionGetTargetStatistics(qword, void*, void*)")
# 呼び出し: DCompositionGetTargetStatistics(frameId, targetId, targetStats)
# frameId : ULONGLONG -> "qword"
# targetId : COMPOSITION_TARGET_ID* -> "void*"
# targetStats : COMPOSITION_TARGET_STATS* 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)。