Understanding QNetworkConfigurationManager

[TheIndependentAquarius]

QNetworkConfigurationManager manager;
 
if (manager.capabilities() & QNetworkConfigurationManager::NetworkSessionRequired) 
{
}

QNetworkConfigurationManager manager;
    
if (manager.capabilities() & QNetworkConfigurationManager::NetworkSessionRequired) 
{
}

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Now, when I looked up the documentation for capabilities(), all I got was this:

Returns the capabilities supported by the current platform.

from: http://doc.qt.nokia.com/stable/qnetw...l#capabilities

That is very vague, "which" capabilities exactly are we talking about here?

[Zlatomir]

They are described here here.

[TheIndependentAquarius]

That was helpful, thanks.

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Added after 21 minutes:

and I am getting "16" with std :: cout << manager.capabilities();

which is not listed in that list, what is that supposed to mean?

[stampede]

It is listed, capabilities are presented in hexadecimal form.
So "16" means 0*(16^0) + 1*(16^1) = 0x10 = 0x00000010 = QNetworkConfigurationManager::ForcedRoaming

You can print hex values with std::cout (if I remember correctly):

std::cout << std::hex << number;

std::cout << std::hex << number;

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[TheIndependentAquarius]

It is listed, capabilities are presented in hexadecimal form.
So "16" means 0*(16^0) + 1*(16^1) = 0x10 = 0x00000010 = QNetworkConfigurationManager::ForcedRoaming

Actually I checked the value of 16 in hex through a calculator before posting here, it didn't show 10, I must have used it wrongly, apologies && thanks.

[Zlatomir]

The int value might not match any of those, because that "flag" value is most likely a combination (not a single value from that list).

So don't convert that to int, just use it like in the example code you gave: if (manager.capabilities() & QNetworkConfigurationManager::NetworkSessionRequir ed) //see the operator there (is bitwise and - is not logical and)