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Hi TGC

When D3D lost ( fullscreen to window and so on… ),GDK or DBpro will free all the resources ( image ,sprite ,object ,font …) automatically ,this way ,we need to re-create all the resources to make the program keep running ,that’s a lot of pain for programming.

Besides ,Deleting resources when D3D lost will cause some problems with addOn kit,such as "Enhanced animation" .You could not delete a animation controller after you have deleted the referenced object ,that will cause crash.But D3D lost will cause deleting a object before deleting a ani controller.

I found when D3D lost ,we just do not need to free anything, just stop to render .
when we get the event “D3D no target”(D3DERR_DEVICENOTRESET) ,that means the program back to work , we can use “OnLostDevice” ,then ,following “D3D reset” ,then ,reset all the resources ,this way ,we do not need to re-create anything, the program will keep running ,no crash.

I really hope TGC could improve the way deal with D3D lost if possible, so that ,we will not worry about D3D lost any more.

Thanks!!

@Lion Jin


Calling the release function will cause all the resources to be deleted: this is exactly what DBPro and DGDK does!

DirectX forces you to delete all video memory resources when the device is reset, so it is up to you to reload them.

What I usually do is set it to run in windowed fullscreen mode instead, because the device does not get lost when you switch windows, it looks the same, and the resolution of the moniter itself is not changed.

Well there is actually command called dbRestoreLostDevice(); sounds good doesn't it but it don't work

Sorry ,not "Release", but "OnLostDevice" , it does not actually "delete" resource ,when D3D restore ,we just need to "OnLostDevice for resource","Reset for Device","OnResetDevice for resource".

Not only Fullscreen to window will cause D3D lost! In my notebook,if I press Ctrl+Alt+Delete ,D3D lost will be happen.

If no source code ,we could not change that ,I think GDK or DBPro might release all the resources when D3D lost.