DdqGetDiagnosticRecordCount

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

HRESULT DdqGetDiagnosticRecordCount(
    HDIAGNOSTIC_RECORD hRecord,
    DWORD* recordCount
);

<DllImport("DiagnosticDataQuery.dll", ExactSpelling:=True)>
Public Shared Function DdqGetDiagnosticRecordCount(
    hRecord As IntPtr,   ' HDIAGNOSTIC_RECORD
    <Out> ByRef recordCount As UInteger   ' DWORD* out
) As Integer
End Function

' hRecord : HDIAGNOSTIC_RECORD
' recordCount : DWORD* out
Declare PtrSafe Function DdqGetDiagnosticRecordCount Lib "diagnosticdataquery" ( _
    ByVal hRecord As LongPtr, _
    ByRef recordCount 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

DdqGetDiagnosticRecordCount = ctypes.windll.diagnosticdataquery.DdqGetDiagnosticRecordCount
DdqGetDiagnosticRecordCount.restype = ctypes.c_int
DdqGetDiagnosticRecordCount.argtypes = [
    wintypes.HANDLE,  # hRecord : HDIAGNOSTIC_RECORD
    ctypes.POINTER(wintypes.DWORD),  # recordCount : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DiagnosticDataQuery.dll')
DdqGetDiagnosticRecordCount = Fiddle::Function.new(
  lib['DdqGetDiagnosticRecordCount'],
  [
    Fiddle::TYPE_VOIDP,  # hRecord : HDIAGNOSTIC_RECORD
    Fiddle::TYPE_VOIDP,  # recordCount : DWORD* out
  ],
  Fiddle::TYPE_INT)

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

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

#uselib "DiagnosticDataQuery.dll"
#func global DdqGetDiagnosticRecordCount "DdqGetDiagnosticRecordCount" sptr, sptr
; DdqGetDiagnosticRecordCount hRecord, varptr(recordCount)   ; 戻り値は stat
; hRecord : HDIAGNOSTIC_RECORD -> "sptr"
; recordCount : 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 DdqGetDiagnosticRecordCount "DdqGetDiagnosticRecordCount" sptr, var
; res = DdqGetDiagnosticRecordCount(hRecord, recordCount)
; hRecord : HDIAGNOSTIC_RECORD -> "sptr"
; recordCount : 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 DdqGetDiagnosticRecordCount(HDIAGNOSTIC_RECORD hRecord, DWORD* recordCount)
#uselib "DiagnosticDataQuery.dll"
#cfunc global DdqGetDiagnosticRecordCount "DdqGetDiagnosticRecordCount" intptr, var
; res = DdqGetDiagnosticRecordCount(hRecord, recordCount)
; hRecord : HDIAGNOSTIC_RECORD -> "intptr"
; recordCount : 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")
	procDdqGetDiagnosticRecordCount = diagnosticdataquery.NewProc("DdqGetDiagnosticRecordCount")
)

// hRecord (HDIAGNOSTIC_RECORD), recordCount (DWORD* out)
r1, _, err := procDdqGetDiagnosticRecordCount.Call(
	uintptr(hRecord),
	uintptr(recordCount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DdqGetDiagnosticRecordCount(
  hRecord: THandle;   // HDIAGNOSTIC_RECORD
  recordCount: Pointer   // DWORD* out
): Integer; stdcall;
  external 'DiagnosticDataQuery.dll' name 'DdqGetDiagnosticRecordCount';

result := DllCall("DiagnosticDataQuery\DdqGetDiagnosticRecordCount"
    , "Ptr", hRecord   ; HDIAGNOSTIC_RECORD
    , "Ptr", recordCount   ; DWORD* out
    , "Int")   ; return: HRESULT

●DdqGetDiagnosticRecordCount(hRecord, recordCount) = DLL("DiagnosticDataQuery.dll", "int DdqGetDiagnosticRecordCount(void*, void*)")
# 呼び出し: DdqGetDiagnosticRecordCount(hRecord, recordCount)
# hRecord : HDIAGNOSTIC_RECORD -> "void*"
# recordCount : 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)。