Having a Windows registry key with a type REG_BINARY. When reading the key using QSettings, it returns a wrong value.

A sample code is attached to this issue (main.cpp)

• when registry value = "01af", it returns "eabc81"
• when registry value = "00" it returns an empty value.

In file "qsettings_win.cpp", data (ByteArray) is converted to WCharArray with a size divided by 2.

case REG_BINARY: {
QString s;
if (dataSize)

{ s = QString::fromWCharArray((const wchar_t *)data.constData(), data.size() / 2); }

In case of REG_BINARY, only returning the ByteArray is enough :

case REG_BINARY:

{ if (value != 0) *value = data; break; }

Fix proposition is attached in the diff file. On Windows 7 64 Bits, it works, I don't know if this fix covers all windows platforms ?