I am trying to capture the screen,then transfer it to byte stream, in order to send it to the network.
But the stream->Read() doesn’t work.The once_read always 0, and the there is not data on buf. I don’t konw if there are better ways to do this.
<code>
// there a trouble here.
while (size > 0)
{
// IStream* stream;
// CreateStreamOnHGlobal(0, true, &stream);
HRESULT res = stream->Read(buf, min(size, 4095), (ULONG *)&once_read);
std::cout << buf << std::endl;
size -= once_read;
}
</code>
<code>
// there a trouble here.
while (size > 0)
{
// IStream* stream;
// CreateStreamOnHGlobal(0, true, &stream);
HRESULT res = stream->Read(buf, min(size, 4095), (ULONG *)&once_read);
std::cout << buf << std::endl;
size -= once_read;
}
</code>
// there a trouble here.
while (size > 0)
{
// IStream* stream;
// CreateStreamOnHGlobal(0, true, &stream);
HRESULT res = stream->Read(buf, min(size, 4095), (ULONG *)&once_read);
std::cout << buf << std::endl;
size -= once_read;
}
I want to know how to transfer a CImage to a byte array, then use send() to send it to the network.
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