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How do I make a transparent canvas in html5?
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Canvases are transparent by default.
Try setting a page background image, and then put a canvas over it. If nothing is drawn on the canvas, you can fully see the page background.
Think of a canvas as like painting on a glass plate.
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What does |= (single pipe equal) and &=(single ampersand equal) mean
...utes &= ~FileAttributes.System;
~ is bitwise negation. You will thus set all bits to 1 except the System bit. and-ing it with the mask will set System to 0 and leave all other bits intact because 0 & x = 0 and 1 & x = x for any x
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UITableView with fixed section headers
...aders only remain fixed when the UITableViewStyle property of the table is set to UITableViewStylePlain. If you have it set to UITableViewStyleGrouped, the headers will scroll up with the cells.
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How do I duplicate a whole line in Emacs?
...s down to
C-a: move cursor to start of line
C-SPACE: begin a selection ("set mark")
C-n: move cursor to next line
M-w: copy region
C-y: paste ("yank")
The aforementioned
C-a C-k C-k C-y C-y
amounts to the same thing (TMTOWTDI)
C-a: move cursor to start of line
C-k: cut ("kill") the line
C-k...
Are there other whitespace codes like   for half-spaces, em-spaces, en-spaces etc useful in HTML
...rs themselves are legacy character. They have been included into character sets only due to their presence in existing character data, rather than for use in new documents. For some combinations of font and browser version, they may cause a generic glyph of unrepresentable character to be shown. For...
Force LF eol in git repo and working copy
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As you're partially working on Linux and Windows, make sure core.eol is set to native and core.autocrlf is set to true.
Then, replace the content of your .gitattributes file with the following
* text=auto
This will let Git handle the automagic line endings conversion for you, on commits and c...
Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
...m-wide module, sitecustomize.py, After this module has been evaluated, the setdefaultencoding() function is removed from the sys module.
The only way to actually use it is with a reload hack that brings the attribute back.
Also, the use of sys.setdefaultencoding() has always been discouraged, an...
Binding ConverterParameter
... of a normal Binding:
<Style TargetType="FrameworkElement">
<Setter Property="Visibility">
<Setter.Value>
<MultiBinding Converter="{StaticResource AccessLevelToVisibilityConverter}">
<Binding Path="Tag" RelativeSource="{RelativeSour...
Position an element relative to its container
...nts is laid out in normal flow, then it is removed from normal flow and offset by whatever values you have specified (top, right, bottom, left). It's important to note that because it's removed from flow, other elements around it will not shift with it (use negative margins instead if you want this ...
displayname attribute vs display attribute
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DisplayName sets the DisplayName in the model metadata. For example:
[DisplayName("foo")]
public string MyProperty { get; set; }
and if you use in your view the following:
@Html.LabelFor(x => x.MyProperty)
it would generate:
&l...