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How To Save Canvas As An Image With canvas.toDataURL()?
...ename could be attached to the data, but I've found no way to do that. For now, you have to specify the filename yourself."
– SColvin
Sep 13 '13 at 0:14
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Difference between Visibility.Collapsed and Visibility.Hidden
...Width="50" Content="Third"/>
</StackPanel>
Output Collapsed:
Now change the second Label visibility to Hiddden.
<Label Width="50" Content="Second" Visibility="Hidden"/>
Output Hidden:
As simple as that.
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Input placeholders for Internet Explorer
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That plugin isn't maintained anymore, and has a lot of known issues.
– Ian Dunn
Nov 16 '12 at 22:51
13
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CSS force image resize and keep aspect ratio
...in;
background-repeat: no-repeat;
background-position: center;
}
Now you can just set your div size to whatever you want and not only will the image keep its aspect ratio it will also be centralized both vertically and horizontally within the div. Just don't forget to set the sizes on the ...
How to overcome “datetime.datetime not JSON serializable”?
...lizable. In this case it's str, so it just converts everything it doesn't know to strings. Which is great for serialization but not so great when deserializing (hence the "quick & dirty") as anything might have been string-ified without warning, e.g. a function or numpy array.
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How to update a menu item shown in the ActionBar?
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Option #1: Try invalidateOptionsMenu(). I don't know if this will force an immediate redraw of the action bar or not.
Option #2: See if getActionView() returns anything for the affected MenuItem. It is possible that showAsAction simply automatically creates action views fo...
How to suppress specific MSBuild warning
...nt to suppress compiler errors (e.g. "CS2008"), you can do what OP did: /p:nowarn=2008 (strip the "CS" off the number)
– Michael Haren
Jun 13 '13 at 18:18
1
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How to find out which fonts are referenced and which are embedded in a PDF document
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pdffonts command line tool originally from Xpdf, now part of Poppler.
This tool is available in most Linux distributions as part of poppler-utils package.
Example usage and output:
$ pdffonts some.pdf
name type emb sub uni...
Deleting elements from std::set while iterating
...M. It does in C++11. In C++17, it takes iterator (const_iterator in C++11) now.
– tartaruga_casco_mole
Jan 23 '18 at 4:15
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Immutable class?
...mmutableList= new NotQuiteImmutableList(Arrays.asList("a", "b", "c"));
// now the list contains "a", "b", "c", "d" -- this list is mutable.
notQuiteImmutableList.getList().add("d");
One way to get around this problem is to return a copy of an array or collection when called from a getter:
public...