How to prevent backlight dimming?

[Sasler]

How can I prevent the backlight of the screen from dimming and going off?

Thanks

[divanov]

MCE provides a method call for this:
http://maemo.org/api_refs/5.0/5.0-fi...23a31866455b80

[kunal_the_one]

Is there any sample code how to use MCE_PREVENT_BLANK_REQ dbus method ? i am quite new to maemo development and dont know how dbus works?

[divanov]

Is there any sample code how to use MCE_PREVENT_BLANK_REQ dbus method ? i am quite new to maemo development and dont know how dbus works?

DBus is not Maemo specific
http://qt.nokia.com/doc/4.6/qdbusinterface.html#details

[lpotter]

QSystemInfo API from the Qt Mobility project has a function to do this.

QSystemScreenSaver::setScreenSaverInhibit()

Will inhibit the blanking for the life of the QSystemScreenSaver object

[divanov]

QSystemInfo API from the Qt Mobility project has a function to do this.

QSystemScreenSaver::setScreenSaverInhibit()

Will inhibit the blanking for the life of the QSystemScreenSaver object

Actual Debian packages are located in extras-devel repositories:
http://repository.maemo.org/extras-d...q/qt-mobility/

The only problem is the current status of Qt Mobility for Maemo 5 doesn't really look good:
http://qt.nokia.com/doc/qtmobility-1...-compatability

[lpotter]

Actual Debian packages are located in extras-devel repositories:
http://repository.maemo.org/extras-d...q/qt-mobility/

The only problem is the current status of Qt Mobility for Maemo 5 doesn't really look good:
http://qt.nokia.com/doc/qtmobility-1...-compatability

That grid is not too descriptive, but the SceenSaverInhibit works for maemo5

In the least you could see how it's done with QtDBus.

[divanov]

That grid is not too descriptive, but the SceenSaverInhibit works for maemo5

In the least you could see how it's done with QtDBus.

There is another problem with Qt Mobility at the moment. If one wants to publish an application in Ovi Store there is no Qt Mobility. It makes it better and safer to use native Maemo API for the time being.

[kunal_the_one]

I found following code after doing some research.

#include <QtDBus>
#include <mce/mode-names.h>
#include <mce/dbus-names.h>


QDBusConnection::systemBus().call(QDBusMessage::createMethodCall(MCE_SERVICE, MCE_REQUEST_PATH,
MCE_REQUEST_IF, MCE_PREVENT_BLANK_REQ));

[divanov]

I found following code after doing some research.

I don't know why do you need to do any research as I've already given the link to an answer.

#include <QtDBus>
#include <mce/mode-names.h>
#include <mce/dbus-names.h>

QDBusInterface mce(MCE_SERVICE, MCE_REQUEST_PATH,
                   MCE_REQUEST_IF, QDBusConnection::systemBus());
mce.call(MCE_PREVENT_BLANK_REQ);

[gurmukh]

I found following code after doing some research.

#include <QtDBus>
#include <mce/mode-names.h>
#include <mce/dbus-names.h>


QDBusConnection::systemBus().call(QDBusMessage::createMethodCall(MCE_SERVICE, MCE_REQUEST_PATH,
MCE_REQUEST_IF, MCE_PREVENT_BLANK_REQ));

Thanks, it worked!