在 QT 中将 gpointer 转换为 QByteArray

Question

How can I convert gpointer bytes (FT_BYTES) to QByteArray in Qt? Point:

a) gpointer is a type like void* in glib Linux package.

b) A hex dump like a0 23 5c which is stored as gpointer and I like to convert it to hex in QByteArray format

Answer 1

QByteArray createQBAfromGP(gpointer gp, int byteCount)
{
    return QByteArray::fromRawData((char *)gp, byteCount);
}

Be aware that the bytes are not copied. The QByteArray is merely a view into the original memory. If you want them copied, you can

QByteArray convertToQBA(gpointer gp, int byteCount)
{
    return QByteArray().append(QByteArray::fromRawData((char *)gp, byteCount));
}