![]() I bet you probably won’t even notice a difference with how it looks. You should see this after selecting the Pointers tab:Īt the bottom, you will notice the “Enable pointer shadow”.Ĭlick OK and you are done. Go into the Control Panel and select the mouse applet. I couldn’t understand why the mouse pointer was so bad until I recognized the symptoms and went hunting for turning off the cursor shadowing. Just this last week I was using RDP to some XP systems that still had it turned on. It makes such a bigger difference to turn it off. The same was also true for the early versions of PortICA. The same is not true for Microsoft Remote Desktop. Well, not impossible but very frustrating.Ĭitrix software automatically turns off cursor shadowing for Citrix Presentation Server. Essentially it is impossible to use a slow or high latency connection with cursor shadowing turned on. This brings back all the ugliness of having to draw the mouse pointer on the server. Because the local pointer cannot be blended with the remote desktop, the code has to revert to using the server’s mouse pointer. It was still possible to have a delay with response time but at least the mouse acted as it always had. This was a very wise decision and it gave the user the responsiveness he or she wanted. In remote sessions, it was decided long ago by Citrix that the local mouse pointer should be used instead of showing the mouse pointer being drawn from the server. This kind of transparency can be very useful but with the cursor shadow (pointer shadow from the mouse control panel) the cost is too high compared to the benefit. It is a technology that has been around since the 70’s and has finally hit widespread acceptance in Windows with Vista. The technique calls for mixing the image with the background in a way that blends more than overlaps. The cursor shadowing is achieved using what is known as alpha blending. In the case of remote access, it is a huge hindrance. Personally I don’t find the shadow to be a huge advantage. I bet if you stare at your mouse cursor right now you might just notice that it has a shadow for the very first time. However, in practice, the shadow is so subtle that it would be difficult to recognize as even being there. In theory this is done to make it easier for the user to locate the mouse cursor since it has a built in shadow around it that would help match it against any background. If cursor shadowing is turned on (which is the default) then the cursor forms a shadow over whatever it is currently on top of. The culprit was something called cursor shadowing. The cursor only flashes on the screen at fixed intervals and it is hard to guess where it is going to end up. If you move the mouse around, it becomes jerky and very difficult to control. It’s more noticeable on slower connections. During PortICA development we saw this nature and initially were a bit confused about what could be causing this. They can be incredibly sluggish when dealing with remote sessions. There has been one thing I have been reminded of this last week about mouse cursors.
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