Qt-interest Archive, August 2007
Is there a function which can tell name of the platform at runtime?
Message 1 in thread
Hi,
I wonder if there is a function which can tell name of the current
platform at runtime, just like qVersion() tells the version of Qt.
Thanks,
Lingfa
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Message 2 in thread
Von: Lingfa Yang
> Hi,
>
> I wonder if there is a function which can tell name of the current
> platform at runtime, just like qVersion() tells the version of Qt.
>
Yes.
Just take a short look into the Qt documentation to find out how you get system informations... is it to complicated to look if there's a usable class before asking on the list?
Christian
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Message 3 in thread
Hi
No need to be flaming people, look inside the QSysInfo class,
http://doc.trolltech.com/qtopia4.2/qsysinfo.html, you will find it
there.
// anders
On 8/9/07, Christian Ehrlicher <Ch.Ehrlicher@xxxxxx> wrote:
> Von: Lingfa Yang
> > Hi,
> >
> > I wonder if there is a function which can tell name of the current
> > platform at runtime, just like qVersion() tells the version of Qt.
> >
> Yes.
> Just take a short look into the Qt documentation to find out how you get system informations... is it to complicated to look if there's a usable class before asking on the list?
>
> Christian
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Message 4 in thread
Le Thursday 09 August 2007 02:01:55 am Anders Sandholm, vous avez écrit :
> No need to be flaming people, look inside the QSysInfo class,
> http://doc.trolltech.com/qtopia4.2/qsysinfo.html, you will find it
> there.
Also while not an answer to the question (but it's related), but you can test
the OS at compile time by checking for the Q_OS_* preprocessor symbols. See
http://doc.trolltech.com/4.3/qtglobal.html#Q_OS_AIX for a list of them. One
thing not explained in the list, though, is that more than one may be
defined. For example on a Linux system Q_OS_LINUX and Q_OS_UNIX are both
defined and on Mac OS X, Q_OS_UNIX, Q_OS_DARWIN, Q_OS_BSD4, Q_OS_MAC,
Q_OS_MACX, and either (Q_OS_DARWIN32 and Q_OS_MAC32) or (Q_OS_DARWIN64 and
Q_OS_MAC64) are all defined.
Katrina Niolet
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Message 5 in thread
Katrina Niolet wrote:
>Le Thursday 09 August 2007 02:01:55 am Anders Sandholm, vous avez écrit :
>
>
>>No need to be flaming people, look inside the QSysInfo class,
>>http://doc.trolltech.com/qtopia4.2/qsysinfo.html, you will find it
>>there.
>>
>>
>
>Also while not an answer to the question (but it's related), but you can test
>the OS at compile time by checking for the Q_OS_* preprocessor symbols. See
>http://doc.trolltech.com/4.3/qtglobal.html#Q_OS_AIX for a list of them. One
>thing not explained in the list, though, is that more than one may be
>defined. For example on a Linux system Q_OS_LINUX and Q_OS_UNIX are both
>defined and on Mac OS X, Q_OS_UNIX, Q_OS_DARWIN, Q_OS_BSD4, Q_OS_MAC,
>Q_OS_MACX, and either (Q_OS_DARWIN32 and Q_OS_MAC32) or (Q_OS_DARWIN64 and
>Q_OS_MAC64) are all defined.
>
>Katrina Niolet
>
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>To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the subject or the body.
>List archive and information: http://lists.trolltech.com/qt-interest/
>
>
>
Katrina and Anders,
I use what I just learned from both of you to title a query, which gives
a nice output.
void MainWindow::supported()
{
#ifdef WINNT
QString platform( tr("%1").arg(winName(QSysInfo::WindowsVersion)));
#else if Q_OS_LINUX
QString platform("X11");
#endif
QString msg( tr("Qt %1 on %2 supports\n").arg(qVersion
()).arg(platform) );
msg += "QImageReader::supportedImageFormats()\n";
QList< QByteArray > readerList = QImageReader::supportedImageFormats ();
int count = 1;
foreach(QByteArray item, readerList)
{
msg += tr("%1:\t%2\n").arg(count).arg(QString(item));
count ++;
}
Qt 4.3.0 on Windows XP supports
QImageReader::supportedImageFormats()
1: bmp
2: gif
3: jpeg
4: jpg
5: mng
...
Thank you both for helpful replies.
To Christian Ehrlicher at de meaning "down from, off, concerning." Used
as a prefix in Eng., as in defrost (1895), defuse (1943), decaffeination
(1927), etc. Usually felt as meaning "down" :-)
Your answer turns to be more helpful is you could write "QSysInfo"
instead of "system informations".
To your question, I did search for platform info, and not found
QSysInfo, that's why I ask. Do you think there is anything wrong to ask
such a question?
Thank you anyway.
Lingfa
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