DdqGetDiagnosticRecordCategoryCount

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

HRESULT DdqGetDiagnosticRecordCategoryCount(
    HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION hCategoryDescription,
    DWORD* categoryDescriptionCount
);

<DllImport("DiagnosticDataQuery.dll", ExactSpelling:=True)>
Public Shared Function DdqGetDiagnosticRecordCategoryCount(
    hCategoryDescription As IntPtr,   ' HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION
    <Out> ByRef categoryDescriptionCount As UInteger   ' DWORD* out
) As Integer
End Function

' hCategoryDescription : HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION
' categoryDescriptionCount : DWORD* out
Declare PtrSafe Function DdqGetDiagnosticRecordCategoryCount Lib "diagnosticdataquery" ( _
    ByVal hCategoryDescription As LongPtr, _
    ByRef categoryDescriptionCount 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

DdqGetDiagnosticRecordCategoryCount = ctypes.windll.diagnosticdataquery.DdqGetDiagnosticRecordCategoryCount
DdqGetDiagnosticRecordCategoryCount.restype = ctypes.c_int
DdqGetDiagnosticRecordCategoryCount.argtypes = [
    wintypes.HANDLE,  # hCategoryDescription : HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION
    ctypes.POINTER(wintypes.DWORD),  # categoryDescriptionCount : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DiagnosticDataQuery.dll')
DdqGetDiagnosticRecordCategoryCount = Fiddle::Function.new(
  lib['DdqGetDiagnosticRecordCategoryCount'],
  [
    Fiddle::TYPE_VOIDP,  # hCategoryDescription : HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION
    Fiddle::TYPE_VOIDP,  # categoryDescriptionCount : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "diagnosticdataquery")]
extern "system" {
    fn DdqGetDiagnosticRecordCategoryCount(
        hCategoryDescription: *mut core::ffi::c_void,  // HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION
        categoryDescriptionCount: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DiagnosticDataQuery.dll")]
public static extern int DdqGetDiagnosticRecordCategoryCount(IntPtr hCategoryDescription, out uint categoryDescriptionCount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DiagnosticDataQuery_DdqGetDiagnosticRecordCategoryCount' -Namespace Win32 -PassThru
# $api::DdqGetDiagnosticRecordCategoryCount(hCategoryDescription, categoryDescriptionCount)

#uselib "DiagnosticDataQuery.dll"
#func global DdqGetDiagnosticRecordCategoryCount "DdqGetDiagnosticRecordCategoryCount" sptr, sptr
; DdqGetDiagnosticRecordCategoryCount hCategoryDescription, varptr(categoryDescriptionCount)   ; 戻り値は stat
; hCategoryDescription : HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION -> "sptr"
; categoryDescriptionCount : DWORD* out -> "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 "DiagnosticDataQuery.dll"
#cfunc global DdqGetDiagnosticRecordCategoryCount "DdqGetDiagnosticRecordCategoryCount" sptr, var
; res = DdqGetDiagnosticRecordCategoryCount(hCategoryDescription, categoryDescriptionCount)
; hCategoryDescription : HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION -> "sptr"
; categoryDescriptionCount : DWORD* 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。

; HRESULT DdqGetDiagnosticRecordCategoryCount(HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION hCategoryDescription, DWORD* categoryDescriptionCount)
#uselib "DiagnosticDataQuery.dll"
#cfunc global DdqGetDiagnosticRecordCategoryCount "DdqGetDiagnosticRecordCategoryCount" intptr, var
; res = DdqGetDiagnosticRecordCategoryCount(hCategoryDescription, categoryDescriptionCount)
; hCategoryDescription : HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION -> "intptr"
; categoryDescriptionCount : DWORD* 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 (
	diagnosticdataquery = windows.NewLazySystemDLL("DiagnosticDataQuery.dll")
	procDdqGetDiagnosticRecordCategoryCount = diagnosticdataquery.NewProc("DdqGetDiagnosticRecordCategoryCount")
)

// hCategoryDescription (HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION), categoryDescriptionCount (DWORD* out)
r1, _, err := procDdqGetDiagnosticRecordCategoryCount.Call(
	uintptr(hCategoryDescription),
	uintptr(categoryDescriptionCount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DdqGetDiagnosticRecordCategoryCount(
  hCategoryDescription: THandle;   // HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION
  categoryDescriptionCount: Pointer   // DWORD* out
): Integer; stdcall;
  external 'DiagnosticDataQuery.dll' name 'DdqGetDiagnosticRecordCategoryCount';

result := DllCall("DiagnosticDataQuery\DdqGetDiagnosticRecordCategoryCount"
    , "Ptr", hCategoryDescription   ; HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION
    , "Ptr", categoryDescriptionCount   ; DWORD* out
    , "Int")   ; return: HRESULT

●DdqGetDiagnosticRecordCategoryCount(hCategoryDescription, categoryDescriptionCount) = DLL("DiagnosticDataQuery.dll", "int DdqGetDiagnosticRecordCategoryCount(void*, void*)")
# 呼び出し: DdqGetDiagnosticRecordCategoryCount(hCategoryDescription, categoryDescriptionCount)
# hCategoryDescription : HDIAGNOSTIC_EVENT_CATEGORY_DESCRIPTION -> "void*"
# categoryDescriptionCount : DWORD* 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)。