pSHStgOpenStorageW

unDocmented.cpp

#define FilePath L"実際のパス"

#include <windows.h>
#include <ObjIdl.h>
#include <Propsys.h>
#include <Shlwapi.h>
#include <comdef.h>
#include <Propvarutil.h>

_COM_SMARTPTR_TYPEDEF(IPersistFile, __uuidof(IPersistFile));
_COM_SMARTPTR_TYPEDEF(IPropertySetStorage, __uuidof(IPropertySetStorage));
_COM_SMARTPTR_TYPEDEF(IPropertyStore, __uuidof(IPropertyStore));
typedef HRESULT (WINAPI *p_SHStgOpenStorageW)(const WCHAR*,DWORD,DWORD, DWORD, REFIID, void **);


int CALLBACK WinMain(
	_In_  HINSTANCE hInstance,
	_In_  HINSTANCE hPrevInstance,
	_In_  LPSTR lpCmdLine,
	_In_  int nCmdShow
	)
{

	CoInitialize(NULL);
	try {
		
		HMODULE hDll = LoadLibraryW(L"shell32.dll");
		if (!hDll) _com_issue_error(S_FALSE);

		p_SHStgOpenStorageW pSHStgOpenStorageW = (p_SHStgOpenStorageW)GetProcAddress(hDll, (LPCSTR)683);
		IPropertySetStoragePtr pPropSetStg;
		HRESULT hr = pSHStgOpenStorageW(FilePath,STGM_READ || STGM_SHARE_DENY_WRITE, 0, 0,IID_PPV_ARGS(&pPropSetStg));
		if (FAILED(hr)) _com_issue_error(hr);

	}
	catch (_com_error& e) {
		MessageBoxA(nullptr, (LPCSTR)e.ErrorMessage(), "err", MB_OK);
	}
	CoUninitialize();
	return 0;
}