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The easiest approach is to render the scene to the screen and copy the contents of the back buffer into a ResolveTexture2D. Therefore, you first need to create a ResolveTexture2D object, capable of storing the contents of the back buffer. This means its size and format have to be the same as the size and format of the back buffer. Add this code to your LoadContent method to create your ResolveTexture2D object: PresentationParameters pp = device.PresentationParameters; resolveTexture = new ResolveTexture2D(device, pp.BackBufferWidth, pp.BackBufferHeight, 1, device.DisplayMode.Format); The first line retrieves the current PresentationParameters, containing all details about the current configuration of the graphical device. These include the current width, height, and data format of the current back buffer. The second line creates a ResolveTexture2D object, based on these settings. With your ResolveTexture2D object created, you can use it to store the current contents of the back buffer. In your Draw method, at a point where you want to capture the contents of the back buffer, add these lines: device.ResolveBackBuffer(resolveTexture); resolveTexture.Save("output.bmp", ImageFileFormat.Bmp); This will store the current contents of the back buffer in your resolveTexture variable. Because the ResolveTexture2D inherits from the Texture2D class, you can use it in any way you would use a normal Texture2D. In the previous example, the texture is saved to file.

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contents of the back buffer are discarded!

We will introduce new system architectures in the context of considering these requirements and problems you may have to face. For each of those requirements, we will discuss one or more solutions we can adopt.

Figure 5-1. The structure of a method The following example shows the form of the method header. I will cover each part in the following pages. int MyMethod ( int intpar1, string strpar1 ) Return Method Parameter type name list

Instead of rendering to the back buffer, you can define a custom RenderTarget2D and activate this before rendering. A render target is exactly what the name implies: it is a piece of memory that can be used to render to. After all rendering is done, you will again copy the contents of this render target into a texture. Add the variable that will hold the render target: RenderTarget2D renderTarget;

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and instantiate it in the LoadContent method: PresentationParameters pp = device.PresentationParameters; renderTarget = new RenderTarget2D(device, pp.BackBufferWidth, pp.BackBufferHeight, 1, device.DisplayMode.Format); You define the width and height of your render target, indicate how many mipmap levels it should have (see the note on mipmaps in recipe 3-6), and set the data format of the render target. In this example, you re using the same values as your current back buffer.

n All the system architectures we will describe can be mixed up together in different combinations, in Tip order to meet any requirement that you might find in a complex environment like a big intranet or portal. All the examples we will provide are in a Linux environment.

Methods can also be function members of another user-defined type called a struct, which is covered in 12. Most of what this chapter covers about class methods will also be true for struct methods. For example, the following code shows a simple method called MyMethod, that, in turn, calls the WriteLine method several times: void MyMethod() { Console.WriteLine("First"); Console.WriteLine("Last"); }

Note As always, mipmapping (see the note in the previous recipe) can be done only if the width/height of

Objects published by the Zope application server are stored by default into the ZODB. The ZODB provides an object database and stores pickles of objects and transactions in a file named Data.fs (remember that you can have more than one ZODB).

your texture is a power of 2. So if you get an error when you specify any other number of mipmaps than 1, this might be the cause.

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itextsharp add annotation to existing pdf c#