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I''m calling TestCooperativeLevel on my IDirect3dDevice9 object in C++. I always get the return value D3D_OK. This even happens in the debugger when the game window is hidden or minimized. Surely I should get a D3DERR_DEVICELOST. Because I always get 0 returned, I never know when I have to reset my objects and hence one the screen is minimized I can''t display anything again. Anyone come across this before or know what I''m doing wrong. I am pretty new to this so it''s probably something basic. Cheers.

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