Hello, I am a noob game programmer, and need help with a program in the tutorial book I bought that is not working. It will build without problems, however whenever I try to run it, it shows this error: Unhandled exception at 0x0042712a in Paddle_Game.exe: 0xC0000005: Access violation reading location 0x00000000. It tells me that the problem is most likely in these lines, however, I am not sure... int Init_Mouse(HWND hwnd) { //set the data format for mouse input HRESULT result = dimouse->SetDataFormat(&c_dfDIMouse); if (result != DI_OK) return 0; If I have not posted enough for you to figure this out or you do know how to fix this, please reply.

Just for a heads up. since this is Directx 3d i suggest reposting or moving it to the Directx topic. And excuse my ignorance if the D3D stands for something else.