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How do I create a crontab through a script
... am currently using Ubuntu. I can use crontab -e but that will open an editor to edit the current crontab. I want to do this programmatically.
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How can I convert a datetime object to milliseconds since epoch (unix time) in Python?
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It appears to me that the simplest way to do this is
import datetime
epoch = datetime.datetime.utcfromtimestamp(0)
def unix_time_millis(dt):
return (dt - epoch).total_seconds() * 1000.0
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Connecting overloaded signals and slots in Qt 5
I'm having trouble getting to grips with the new signal/slot syntax (using pointer to member function) in Qt 5, as described in New Signal Slot Syntax . I tried changing this:
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What are the use(s) for tags in Go?
In the Go Language Specification , it mentions a brief overview of tags:
3 Answers
3...
Rotating videos with FFmpeg
I have been trying to figure out how to rotate videos with FFmpeg. I am working with iPhone videos taken in portrait mode. I know how to determine the current degrees of rotation using MediaInfo (excellent library, btw) but I'm stuck on FFmpeg now.
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How to hide only the Close (x) button?
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You can't hide it, but you can disable it by overriding the CreateParams property of the form.
private const int CP_NOCLOSE_BUTTON = 0x200;
protected override CreateParams CreateParams
{
get
{
CreateParams myCp = base.Create...
MongoDB/Mongoose querying at a specific date?
Is it possible to query for a specific date ?
6 Answers
6
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Detect 7 inch and 10 inch tablet programmatically
...for the Galaxy SIII, the Galaxy Nexus etc.
This isn't usually helpful on its own, as when we're working on Android devices, we usually prefer to work in density independent pixels, dip.
You get the density of the screen using metrics again, in the form of a scale factor for the device, which is b...
How to iterate for loop in reverse order in swift?
... until I changed the first parameter of for loop to be the highest value. (iterated in descending order)
14 Answers
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jQuery Validation plugin: disable validation for specified submit buttons
I have a form with multiple fields that I'm validating (some with methods added for custom validation) with Jörn Zaeffere's excellent jQuery Validation plugin. How do you circumvent validation with specified submit controls (in other words, fire validation with some submit inputs, but do not fire v...