Prevent screensaver and screen dimming

[bunjee]

Greetings,

I'm on a windows 7 laptop.

I'm trying to prevent the screensaver and the screen dimming from my Qt app.

I'm using the following code:
@#ifdef Q_OS_WIN
if (enable == false)
{
SystemParametersInfo(SPI_GETLOWPOWERTIMEOUT, 0, &(timeoutLowPower), 0);
SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT, 0, &(timeoutPowerOff), 0);
SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0, &(timeoutScreenSave), 0);

    SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT,   0, NULL, 0);
    SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,   0, NULL, 0);
    SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 0, NULL, 0);
}
else
{
    SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT,   timeoutLowPower,   NULL, 0);
    SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,   timeoutPowerOff,   NULL, 0);
    SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, timeoutScreenSave, NULL, 0);
}

#endif@

This disables the screensaver but not the screen dimming.

Has anyone got a clue on how to disable Windows 7 auto brightness ?

Update: posted on MSVC http://social.msdn.microsoft.com/Forums/en-US/vcgeneral/thread/72adb664-13f6-4a5b-8666-b99d3e744517

Thanks.