是否有问题，在Windows XP下呈现WPF通过远程桌面？ [英] Are there problems with rendering WPF over Remote Desktop under Windows XP?
问题描述
我听说WPF元不会通过Windows XP远程桌面支持。这个含义是，如果你运行Vista的机器上的WPF应用程序和XP的机器上显示（通过远程桌面）显示屏将作为一个COM pressed位。
I have heard that WPF primitives will not be supported by remote desktop on windows XP. The implication of this is that if you run a WPF application on a vista machine and display it on an XP machine (via remote desktop) the display will be sent as a compressed bitmap.
这个问题是通过DirectX 11的（？）Vista的Vista的交际解决，但在XP中，这将不会被公布。显然有一个性能打到这里，我想了解它做任何大举进入开发应用程序的WPF之前。
This issue is resolved in Vista-Vista comunication via DirectX 11 (?) but this will not be made available on XP. There is obviously a performance hit here, I would like to understand it before making any inroads into developing applications to WPF.
在这个主题的一些信息可以在这里找到：
Some information on this topic can be found here:
<一个href="http://blogs.msdn.com/tims/archive/2007/01/05/comparing-wpf-on-windows-vista-v-windows-xp.aspx">http://blogs.msdn.com/tims/archive/2007/01/05/comparing-wpf-on-windows-vista-v-windows-xp.aspx
请参阅从上面的链接（报价）的评论：
See comment from the above link (quote):
要SpongeJim的问题，这是由MIL（媒体集成层），这是WPF的基础核心处理组成完成的。在一台Vista / Vista的远程桌面连接时，MIL基元的远程处理，然后重建。上的其它组合（例如，2003 / XP），什么获取远程访问是位图，这显然是远更带宽密集型。更多深入这个话题可以在格雷格 - 谢克特的博客中找到，并在特定的此项：<一href="http://blogs.msdn.com/greg_schechter/archive/2006/06/09/623566.aspx">http://blogs.msdn.com/greg_schechter/archive/2006/06/09/623566.aspx
To SpongeJim's question, this is done by the MIL (media integration layer), which is the underlying core of WPF that handles composition. On a Vista/Vista remote desktop connection, the MIL primitives are remoted and then reconstituted. On other combinations (e.g. 2003/XP), what gets remoted is bitmaps, which is obviously far more bandwidth-intensive. More depth on this topic can be found on Greg Schechter's blog, and in this entry in particular: http://blogs.msdn.com/greg_schechter/archive/2006/06/09/623566.aspx
有没有人有任何关于此问题的经验或更多的最新信息？
Does anyone have any experience or more up to date information on this issue?
推荐答案
由于.NET 3.5 SP1，所有WPF图形远程处理位图，甚至在Vista对Vista的沟通。从<一个href="http://blogs.msdn.com/jgoldb/archive/2008/05/15/what-s-new-for-performance-in-wpf-in-net-3-5-sp1.aspx" rel="nofollow">http://blogs.msdn.com/jgoldb/archive/2008/05/15/what-s-new-for-performance-in-wpf-in-net-3-5-sp1.aspx:
As of .NET 3.5 SP1, all WPF graphics are remoted as bitmaps, even on Vista-to-Vista communication. From http://blogs.msdn.com/jgoldb/archive/2008/05/15/what-s-new-for-performance-in-wpf-in-net-3-5-sp1.aspx:
我们现在遥远，在所有情况下的位图。
We now remote as bitmaps in ALL cases.
其原因是WPF 3.5 SP1现在 采用了全新的图形DLL（wpfgfx.dll） 和一定的变化不能进行 Vista的现有图形DLL （milcore.dll），其也使用 DWM。
The reason is that WPF 3.5 SP1 now uses a new graphics DLL (wpfgfx.dll) and certain changes could not be made to Vista’s existing graphics DLL (milcore.dll) that is also used by DWM.
随着其他评论者所指出的那样，表现将在很大程度上取决于你的应用程序的UI设计。潜在的结果是，你只需要测试在一个场景;远程处理性能现在应该不管客户机或服务器的相同。
As other commenters have noted, the performance will greatly depend on the design of your application’s UI. The potential upshot is that you only have to test in one scenario; remoting performance should now be the same regardless of the client or server.
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