storage.cpp

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#define _WIN32_DCOM
#include <windows.h>
#include <iostream.h>

void main(void)
{
	HRESULT hr;
	CoInitialize(NULL);

	IStorage* pStorage;
	StgCreateDocfile(L"C:\\TestFile.STG", STGM_DIRECT|STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, 0, &pStorage);

	IPropertySetStorage* pPropertySetStorage;
	pStorage->QueryInterface(IID_IPropertySetStorage, (void**)&pPropertySetStorage);
	
	IPropertyStorage* pPropertyStorage;
	pPropertySetStorage->Create(FMTID_SummaryInformation, NULL, PROPSETFLAG_ANSI, STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, &pPropertyStorage);

	PROPSPEC ps;
	ps.ulKind = PRSPEC_PROPID;
	ps.propid = PIDSI_AUTHOR;

	PROPVARIANT pv;
	pv.vt = VT_LPSTR;
	pv.pszVal = "Guy Eddon";

	hr = pPropertyStorage->WriteMultiple(1, &ps, &pv, 0);

	pPropertyStorage->Release();
	pPropertySetStorage->Release();

	IStream* pStream;
	hr = pStorage->CreateStream(L"MyDataStream", STGM_DIRECT|STGM_CREATE|STGM_WRITE|STGM_SHARE_EXCLUSIVE, 0, 0, &pStream);

	ULONG bytes_written;
	char data[] = "HELLO THERE!";
	pStream->Write(data, strlen(data), &bytes_written);

	pStream->Release();

	pStorage->Release();

	CoUninitialize();
}