Unsolved Howto add QTime to a QDateTime object?
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Hi All,
I have a QDateTime object, and I would like to add a QTime to it.
How can I do this?
kind regards,
Cedric -
Do I understand correctly that you want to set the time of a QDateTime object from a QTime object?
QDateTime::setTime(const QTime &time)
allows you to set the time
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Hi The_,
Almost. I have a QTimeEdit, and 2 QTimeDate Edits:
QTimeEdit time;
QTimeDate timedate1;
QTimeDate timedate2;I would like to do this:
timedate2 = timedate1 + time;Kind regards,
Cedric -
Maybe there is an easier way but you can calculate the miliseconds since start of day from your QTime and add it to the QDateTime then.
datetime2 = datetime.addMSecs(time.msecsSinceStartOfDay());
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Thanks. It works when I perform it in a few intermediate steps, but I get an error when I do it in one big step:
'((MainWindow*)this)->MainWindow::twilightDurationEdit->QDateTimeEdit::time' does not have class type
datetime = dateTimeEdit->dateTime().addMSecs(twilightDurationEdit->time.fromMSecsSinceStartOfDay());
^
This code works:
QDateTime datetime;
QTime time;datetime = dateTimeEdit->dateTime();
datetime = datetime.addDays(twilightDaysSpin->value());
time = twilightDurationEdit->time();
msecs = time.msecsSinceStartOfDay();
datetime = datetime.addMSecs(msecs);This code doesn't compile:
datetime = dateTimeEdit->dateTime().addMSecs(twilightDurationEdit->time.fromMSecsSinceStartOfDay());Kind regards,
Cedric -
@the_, @cdwijs
The problem is,QDateTime
keeps both the date and the time of day, so is there a guarantee thatQDateTime
points to the same point in time from whichQTime
starts? I really doubt it.twilightDurationEdit->time.fromMSecsSinceStartOfDay()
You are using a function (i.e.
QDateTime::time
) as a variable.
The last should be:twilightDurationEdit->time().fromMSecsSinceStartOfDay()
However, you consider the note my post starts with.