From: Ziqing Hui <zhui@codeweavers.com>
Subject: Re: [PATCH 4/5] d2d1: Implement RegisterEffectFromString().
Message-Id: <2740861e-dc18-b9f2-8ca8-a62df4638891@codeweavers.com>
Date: Mon, 6 Jun 2022 18:31:13 +0800
In-Reply-To: <395dc210-cebf-6811-bde2-fabc5ac232d3@codeweavers.com>
References: <20220606073525.1774002-1-zhui@codeweavers.com> <20220606073525.1774002-4-zhui@codeweavers.com> <395dc210-cebf-6811-bde2-fabc5ac232d3@codeweavers.com>



On 6/6/22 4:37 PM, Nikolay Sivov wrote:
> 
> 
> On 6/6/22 10:35, Ziqing Hui wrote:
>> +    size = sizeof(*property_xml) * (wcslen(property_xml) + 1);
>> +    hglobal = GlobalAlloc(0, size);
>> +    data = GlobalLock(hglobal);
>> +    memcpy(data, property_xml, size);
>> +    GlobalUnlock(hglobal);
>> +
>> +    if (FAILED(hr = CreateStreamOnHGlobal(hglobal, TRUE, &stream)))
>> +        return hr;
> Seems easier to write whole string in a stream, and seek back.
> 

I'm not familiar with IStream interface... I'm not pretty sure how to do this.
Do I still use CreateStreamOnHGlobal() to create a stream? 
Do you mean I should create a stream first. And then use IStream_Write() to write the string to it, then seek back?