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Desktop Extension

Extension of Desktop Win/Windows 7/Vista – Series 5

There have been lot of queries regarding how to load the lower driver driver, which registry entries are required and some sample code. So here I will answer your queries and will also provide some sample code. Note: Its been long time since I worked on this project, so please forgive my memory 🙂 I […]

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Extension of Desktop Win/Windows 7/Vista – Series 4

Enumeration , addition of source, target and path to the vidpn is complete.. I can see multiple monitor in the Desktop->properties window.. But now the requirement is that I need to dump the content of the extended monitor to a virtual memory or what we can say is that whatever is displayed on the extended […]

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Extension of Desktop Win/Windows 7/Vista – Series 3

Now coming to Windows Vista/Win7 or you call it WDDM way. With the advent of Vista, MS changed its graphics architecture drastically. It moved the device driver to the user layer and removed the concept of drawing engine (GDI). GDI, no longer played any significant role in Vista architecture. WDDM /Vista / Win7 display architecture […]

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Extension of Desktop Win/Windows 7/Vista – Series 2

Here I will explain about the underlying functionality of the desktop extension/ multimonitor support with respect to WindowXP and Vista/Win7. Thus , along the way I will also make comparison of Windows 2000/XP graphics architecture with Windows Vista/Win7 architecture. Windows XP uses XPDDM architecture . This architecture consisted of the following components :  Userlayer GDI […]

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Extension of Desktop Win/Windows 7/Vista – Series 1

Its a common phenomenon now days to extend the desktop i.e. attach another monitor to your main screen via USB and the desktop can be extended to multiple monitor. This enables the user to manage his work in a better way. He can move the less useful windows to secondary monitor or songs can continue […]

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