采取XNA屏幕截图 [英] Take screen shot in XNA

问题描述

我怎么可以在XNA画面的截图？是否有可能不 System.Drawing.Graphics.CopyFromScreen 或Win32API的？如果这是不可能的，有没有什么办法来画一个 System.Drawing.Bitmap 游戏

How can I take a screen shot of the screen in XNA? Is it possible without System.Drawing.Graphics.CopyFromScreen or Win32API? If it's not possible, Is there any way to draw a System.Drawing.Bitmap to the game?

我希望它会采取一个屏幕截图，然后加载在全屏模式下游戏，然后打印的屏幕截图。

I want that it'll take a screen screenshot, then load the game in full screen mode, and then print the screenshot.

感谢。

推荐答案

的 http://www.gamedev.net/community/forums/topic.asp?topic%5Fid=537265&whichpage=1&#3469331

在您游戏的LoadContent方法首先创建一个ResolveTexture2D：

First create a ResolveTexture2D in your game's LoadContent method:

renderTargetTexture = new ResolveTexture2D(
        graphics.GraphicsDevice,
        graphics.GraphicsDevice.PresentationParameters.BackBufferWidth,
        graphics.GraphicsDevice.PresentationParameters.BackBufferHeight, 1,
        graphics.GraphicsDevice.PresentationParameters.BackBufferFormat);

然后解决您的Draw方法后缓冲区您绘制场景后：

Then resolve the back buffer in your Draw method after you draw your scene:

graphics.GraphicsDevice.ResolveBackBuffer(renderTargetTexture);

最后，使用spritebatch绘制抓获后缓冲区，当你的游戏暂停在你的绘制方法：

Finally, draw your captured back buffer using a spritebatch when your game is paused in your Draw method:

spriteBatch.Draw(renderTargetTexture, Vector2.Zero, Color.White);

如果您希望图像灰度是，你需要写一个像素着色器并加载它与您LoadContent效果文件，然后与spritebatch绘制纹理之前设置的效果。

If you want the image to be grayscale, you'll need to write a pixel shader and load it with an effect file in your LoadContent, then set the effect before drawing the texture with the spritebatch.

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