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Load a WPF BitmapImage from a System.Drawing.Bitmap
...roblems with this code: I had to add ms.Seek(0, SeekOrigin.Begin); before setting bi.StreamSource. I'm using .NET 4.0.
– mlsteeves
May 7 '10 at 13:57
6
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How do I obtain the frequencies of each value in an FFT?
... get a measure of how well the input signal correlates with sinusoids at a set of frequencies regardless of the input signal phase. If you are just analyzing frequency content of a signal, you will almost always take the magnitude or magnitude squared of the complex output of the FFT.
...
A worthy developer-friendly alternative to PayPal [closed]
... Awesome. It took me more time to find the documentation for PayPal and set up accounts with their sandbox than getting up and running with stripe. Thanks for the tip/advertisement. ;)
– Pascal
Jun 25 '12 at 5:20
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Define css class in django Forms
... to be aware of the default form field being used, and you can dynamically set different classes based on runtime conditions. Cleaner than meta coding hacks...
– Daniel Naab
Dec 30 '08 at 22:37
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How do I move forward and backward between commits in git?
...f the linked answers. FWIW, I tried a version of this with a simple linear set of commits and finally just gave up.
– Snowcrash
Aug 20 '19 at 11:47
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Detect IF hovering over element with jQuery
...
Set a flag on hover:
var over = false;
$('#elem').hover(function() {
over = true;
},
function () {
over = false;
});
Then just check your flag.
...
Merge / convert multiple PDF files into one PDF
...ano for pointing this out):
gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -sOutputFile=merged.pdf mine1.pdf mine2.pdf
In both cases the ouput resolution is much higher and better than this way using convert:
convert -density 300x300 -quality 100 mine1.pdf mine2.pdf merged.pdf
I...
How do I read an attribute on a class at runtime?
...}
catch
{
return null;
}
}
Usage examples:
// Class
SettingsEnum.SettingGroup settingGroup = (SettingsEnum.SettingGroup)(this.GetAttributeValue((SettingGroupAttribute attr) => attr.Value) as SettingsEnum.SettingGroup?);
// Enum
DescriptionAttribute desc = settingGroup.GetA...
Test if string is a guid without throwing exceptions?
...ll failed
/// </returns>
[DllImport("ole32.dll", CharSet = CharSet.Unicode, ExactSpelling = true, PreserveSig = true)]
public static extern int CLSIDFromString(string sz, out Guid clsid);
}
}
Bottom line: If you need to check if a string is a guid, and you care ...
How can I determine if a variable is 'undefined' or 'null'?
...work for any variable that is either undeclared or declared and explicitly set to null or undefined. The boolean expression should evaluate to false for any declared variable that has an actual non-null value.
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