タグ名を得るの巻

README.md

HTML解析ヘルパー(仮) https://gist.github.com/kumatti1/96e89ff9e4100381d4d8 VBS版 https://gist.github.com/kumatti1/93cf607ba19d1f89ca5e

hoge.cpp

#define UNICODE
#include <windows.h>
#include <stdio.h>
#include <Mshtml.h>
#include <Oleacc.h>
#include <Shlwapi.h>
#include <OleAuto.h>

VOID CALLBACK TimerProc(
	_In_  HWND hwnd,
	_In_  UINT uMsg,
	_In_  UINT_PTR idEvent,
	_In_  DWORD dwTime
	);


int CALLBACK WinMain(
	_In_  HINSTANCE hInstance,
	_In_  HINSTANCE hPrevInstance,
	_In_  LPSTR lpCmdLine,
	_In_  int nCmdShow
	)
{
	CoInitialize(NULL); 
	SetTimer(0,0,5000,&TimerProc);
	MessageBox(nullptr,nullptr,nullptr,MB_OK);
	CoUninitialize();
	return 0;
}

VOID CALLBACK TimerProc(
	HWND hwnd,         // ウィンドウのハンドル
	UINT uMsg,         // WM_TIMER メッセージ
	UINT_PTR idEvent,  // タイマの識別子
	DWORD dwTime       // 現在のシステム時刻
	)
{
	POINT point;
	VARIANT varItem;
	IAccessible* pAcc;

	KillTimer(0,idEvent);
	GetCursorPos(&point);
	HRESULT hr = AccessibleObjectFromPoint(point, &pAcc, &varItem);
	if ((hr == S_OK))
	{
		IHTMLElement* pElements;
		IUnknown_QueryService(pAcc,
			__uuidof(pElements),
			IID_PPV_ARGS(&pElements));
		if(pElements)
		{
			BSTR bstr;
			pElements->get_tagName(&bstr);
			MessageBox(nullptr,(LPCWSTR)bstr,nullptr,MB_OK);
			SysFreeString(bstr);
			pElements->Release();
		}
		VariantClear(&varItem);
		pAcc->Release();
	}
}