$time = time() - $_SERVER['REQUEST_TIME'];
if($time > 30)
{
...
}
INCLUDEPATH += K:/Projects/OpenCV/install/include/
LIBS +=-L"K:/Projects/OpenCV/install/x64/mingw/lib/"
LIBS += \
-lopencv_core300 \
-lopencv_highgui300 \
-lopencv_imgproc300 \