Esempi in C++ (Cpp) per CStringA::AllocSysString

Esempio n. 1

File: BoxEncoding.cpp Progetto: 2Quico/netbox

BSTR CBoxEncoding::Base64Encode(VARIANT& var)
{
	CBoxBinPtr varPtr(var);
	CStringA str;
	LPSTR pstr;
	int strSize;
	int nPos, i;

	strSize = ((varPtr.m_nSize + 2) / 3) * 4;
	strSize += (strSize / 64) * 2;
	pstr = str.GetBuffer(strSize);

	for(i = 0, nPos = 0; i < varPtr.m_nSize; i += 48)
		if(varPtr.m_nSize - i > 48)
		{
			EVP_EncodeBlock((unsigned char*)pstr + nPos, (unsigned char*)varPtr + i, 48);
			nPos += 64;
			pstr[nPos ++] = '\r';
			pstr[nPos ++] = '\n';
		}else
			EVP_EncodeBlock((unsigned char*)pstr + nPos, (unsigned char*)varPtr + i, varPtr.m_nSize - i);

	str.ReleaseBuffer(strSize);
	return str.AllocSysString();
}