Direct2D and custom shaped window [closed] - directx

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Does Direct2D support custom shaped windows? Say, drawing a circle over all other windows. If yes, could anyone give a link to an article or sample of such technique? Thanks.

Yep, it does.
Here is an article with examples, unfortunately, it goes in Russian, so use an online translator:
http://teran.karelia.pro/articles/item_5710.html

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Display Mathematics in swift [closed]

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How do I display Mathematics in the iphone app that I am making in swift?
For example, I can use MathJax to display mathematics in wordpress, thus is there a program that I can import mathematics to use in swift or how else can I do that?
So far, mine is very simplistic.
If all you're after is a higher baseline for the exponent and a lower baseline for the subscripts, use NSAttributedString and NSBaselineOffsetAttributeName.
Or if you really like MathJax, you could use MathJax (and UIWebViews instead of UILabels).

Detect hand using CIDetector [closed]

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Is there any way to detect hand or palm using CIDetector? I have googled but only face detection is found, is there any way to do it? please help.
In iOS 8 you can detect QR codes and rectangles too, but alas, not hands or palms.

How to implement the Glasses-Broken particle effective With Spritekit? [closed]

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I want to implement the Glassed-Broken particle effective with spritekit, for example
http://www.ps123.net/design/UploadFiles_design/200902/20090225090558921.jpg
How to?

objective-c what graphics to use for simple 2d game [closed]

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I have a task of building 2d game (packman style) and I need to use open gl(any version) for drawing image (task says so). It means I should build "open gl application" in Xcode, or it is enough to use Core Graphics or UIViews?
I had a very positive experience in my experiments at writing a 2D "packman-style" game using Core Graphics: if you do it right, CALayer animation proves sufficiently reliable and simple to implement.
Here is a link to a great article that explains how you can implement animated sprites in Cocoa. The trick is to use image atlases to avoid managing multiple images at runtime.

How can you draw candlestick charts on iOS? [closed]

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I am new to Quartz, and I would like to draw a candlestick chart in iOS, but I don't know how.
How can I draw charts like this? Are there any good examples for iOS?
Core Plot may be able to do it. If not, it's probably a pretty easy thing to add to the Core Plot library.
http://code.google.com/p/core-plot/
You can do it with SwiftCharts, there are 2 candle sticks examples ready to use - one interactive and other not-interactive (with less overhead, in case you don't need interactivity)
(Disclosure: I'm the author)

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