[Qt-interest] QSettings never saves anything

[Konrad Rosenbaum]

On Wednesday 19 August 2009, Thomi Richards wrote:
> 2009/8/19 Matthias Pospiech <matthias.pospiech at gmx.de>:
> > If I want to use QSettings in its native OS way, I can never get the
> > value after I saved it:
>
> I believe you need to call QSettings::sync() after setting a value to
> save data to disk.

No, QSettings auto-saves when the QSettings-object is destroyed (or the code 
leaves its scope of visibility).

As far as I know this class this can happen only in two instances:

a) the OP tries to read settings while the writing object still lives

b) the settings object tries to write to a file (Unix/Mac) or part of the 
registry (Windows) onto which it does not have write access.

Make sure you set a vendor and application name with QApplication before you 
use any QSettings object. And if this is Unix: make sure the user has write 
access to his own homedir, if it is Windows the user should be able to 
alter his profile.

	Konrad
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