Quote:Windows Display Driver Model (WDDM)[1] is the graphic driver architecture for video card drivers running Microsoft Windows versions beginning with Windows Vista.[2]

It is a replacement for Windows XP display driver model[3] and is aimed at enabling better performance graphics and new graphics functionality.[2] Display drivers in Windows Vista and later can choose to either adhere to this model or to Windows 2000 Display Driver Model (XDDM).[4] With the removal of XDDM from Windows 8, however, WDDM became the only option.[5]

WDDM provides the functionality required to render the desktop and applications using Desktop Window Manager, a compositing window manager running on top of Direct3D. It also supports new DXGI interfaces required for basic device management and creation. The WDDM specification requires at least Direct3D 9-capable video card and the display driver must implement the device driver interfaces for the Direct3D 9Ex runtime in order to run legacy Direct3D applications; it may optionally implement runtime interfaces for Direct3D 10/10.1 and higher.

(01-16-2015, 11:30 PM)danilp12 Wrote:  @dinobot im on win 8 x64 now...just take the screenshot...and guess what...it work!! like you said, it must be soft problem =D

(01-16-2015, 11:50 PM)dinobot Wrote:  Think your 5770 was one generation after my previous graphic card 4770. At time only windows 7 compatible. At least 5-6 yr old.

Check your DirectX version in windows now.  Think the screen capture is control by software rendering by DirectX.

I tried Andy emulator on windows 7 but it is very lag to me.  Now I am going to try it again in windows 8.1 to see if it is smoother...

(01-17-2015, 09:50 PM)Envyus Wrote:  After extensive testing I have come to the conclusion that this is deffinately a software related issue and not hardware related. Aero would always disable itself upon launching BS and revert to windows 7 basic. I trauled through the BS registry entries and conducted further tests. I then created a "new" user on my system and tried to run background mode again with great success.

Finally I decided to perform a clean installation of Windows 7 and now the function works flawlessly and captures screenshots in both foreground and background mode.