void tst_QSystemDisplayInfo::tst_contrast()
{
QSystemDisplayInfo di;
QVERIFY((di.contrast(0) >= 0 && di.contrast(0)< 1.0)
|| di.contrast(0) == -1);
// contrast levels are between 0 and 1.0
}
static void test_systemdisplayinfo(void)
{
QSystemDisplayInfo displayinfo;
QDesktopWidget wid;
for( int display = 0; display < wid.screenCount(); ++display )
{
qDebug() << "";
qDebug() << "Display:" << display;
int depth = displayinfo.colorDepth(display);
qDebug() << " displayinfo.colorDepth() ->" << depth;
int value = displayinfo.displayBrightness(display);
qDebug() << " displayinfo.displayBrightness() ->" << value;
QSystemDisplayInfo::DisplayOrientation orientation = displayinfo.orientation(display);
qDebug() << " displayinfo.orientation() ->" << orientation;
float contrast = displayinfo.contrast(display);
qDebug() << " displayinfo.getContrast() ->" << contrast;
int dpiWidth = displayinfo.getDPIWidth(display);
qDebug() << " displayinfo.getDPIWidth() ->" << dpiWidth;
int dpiHeight = displayinfo.getDPIHeight(display);
qDebug() << " displayinfo.getDPIHeight() ->" << dpiHeight;
int physicalHeight = displayinfo.physicalHeight(display);
qDebug() << " displayinfo.physicalHeight() ->" << physicalHeight;
int physicalWidth = displayinfo.physicalWidth(display);
qDebug() << " displayinfo.physicalWidth() ->" << physicalWidth;
QSystemDisplayInfo::BacklightState state = displayinfo.backlightStatus(display);
qDebug() << " displayinfo.backlightStatus() ->" << state;
}
}