December 2014
Intermediate to advanced
512 pages
17h 4m
English
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Generating Dynamic Images with WriteableBitmap
WriteableBitmap, the other BitmapSource subclass, is designed for displaying dynamic pixel content. You construct an instance with a specific width and height, modify its pixels exposed via a PixelBuffer property, and set it as the Source of an Image element.
One common point of confusion is that PixelBuffer is a useless-looking Windows Runtime interface called IBuffer. IBuffer exposes only two properties: Capacity (the maximum number of bytes it can hold) and Length (the number of bytes currently in use).
C++ code can query the object for the IBufferByteAccess COM interface to read/write its data, but this is not an option for an app’s C# code. Instead, you can use the DataReader and DataWriter ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.