Example #1
0
        public override void Hook()
        {
            this.DebugMessage("Hook: Begin");
            // First we need to determine the function address for IDirect3DDevice9
            Device device;

            id3dDeviceFunctionAddresses = new List <IntPtr>();
            //id3dDeviceExFunctionAddresses = new List<IntPtr>();
            this.DebugMessage("Hook: Before device creation");
            using (Direct3D d3d = new Direct3D())
            {
                using (var renderForm = new System.Windows.Forms.Form())
                {
                    using (device = new Device(d3d, 0, DeviceType.NullReference, IntPtr.Zero, CreateFlags.HardwareVertexProcessing, new PresentParameters()
                    {
                        BackBufferWidth = 1, BackBufferHeight = 1, DeviceWindowHandle = renderForm.Handle
                    }))
                    {
                        this.DebugMessage("Hook: Device created");
                        id3dDeviceFunctionAddresses.AddRange(GetVTblAddresses(device.NativePointer, D3D9_DEVICE_METHOD_COUNT));
                    }
                }
            }

            try
            {
                using (Direct3DEx d3dEx = new Direct3DEx())
                {
                    this.DebugMessage("Hook: Direct3DEx...");
                    using (var renderForm = new System.Windows.Forms.Form())
                    {
                        using (var deviceEx = new DeviceEx(d3dEx, 0, DeviceType.NullReference, IntPtr.Zero, CreateFlags.HardwareVertexProcessing, new PresentParameters()
                        {
                            BackBufferWidth = 1, BackBufferHeight = 1, DeviceWindowHandle = renderForm.Handle
                        }, new DisplayModeEx()
                        {
                            Width = 800, Height = 600
                        }))
                        {
                            this.DebugMessage("Hook: DeviceEx created - PresentEx supported");
                            id3dDeviceFunctionAddresses.AddRange(GetVTblAddresses(deviceEx.NativePointer, D3D9_DEVICE_METHOD_COUNT, D3D9Ex_DEVICE_METHOD_COUNT));
                            _supportsDirect3D9Ex = true;
                        }
                    }
                }
            }
            catch (Exception)
            {
                _supportsDirect3D9Ex = false;
            }

            // We want to hook each method of the IDirect3DDevice9 interface that we are interested in

            // 42 - EndScene (we will retrieve the back buffer here)
            Direct3DDevice_EndSceneHook = new Hook <Direct3D9Device_EndSceneDelegate>(
                id3dDeviceFunctionAddresses[(int)Direct3DDevice9FunctionOrdinals.EndScene],
                // On Windows 7 64-bit w/ 32-bit app and d3d9 dll version 6.1.7600.16385, the address is equiv to:
                // (IntPtr)(GetModuleHandle("d3d9").ToInt32() + 0x1ce09),
                // A 64-bit app would use 0xff18
                // Note: GetD3D9DeviceFunctionAddress will output these addresses to a log file
                new Direct3D9Device_EndSceneDelegate(EndSceneHook),
                this);

            unsafe
            {
                // If Direct3D9Ex is available - hook the PresentEx
                if (_supportsDirect3D9Ex)
                {
                    Direct3DDeviceEx_PresentExHook = new Hook <Direct3D9DeviceEx_PresentExDelegate>(
                        id3dDeviceFunctionAddresses[(int)Direct3DDevice9ExFunctionOrdinals.PresentEx],
                        new Direct3D9DeviceEx_PresentExDelegate(PresentExHook),
                        this);
                }

                // Always hook Present also (device will only call Present or PresentEx not both)
                Direct3DDevice_PresentHook = new Hook <Direct3D9Device_PresentDelegate>(
                    id3dDeviceFunctionAddresses[(int)Direct3DDevice9FunctionOrdinals.Present],
                    new Direct3D9Device_PresentDelegate(PresentHook),
                    this);
            }

            // 16 - Reset (called on resolution change or windowed/fullscreen change - we will reset some things as well)
            Direct3DDevice_ResetHook = new Hook <Direct3D9Device_ResetDelegate>(
                id3dDeviceFunctionAddresses[(int)Direct3DDevice9FunctionOrdinals.Reset],
                // On Windows 7 64-bit w/ 32-bit app and d3d9 dll version 6.1.7600.16385, the address is equiv to:
                //(IntPtr)(GetModuleHandle("d3d9").ToInt32() + 0x58dda),
                // A 64-bit app would use 0x3b3a0
                // Note: GetD3D9DeviceFunctionAddress will output these addresses to a log file
                new Direct3D9Device_ResetDelegate(ResetHook),
                this);

            /*
             * Don't forget that all hooks will start deactivated...
             * The following ensures that all threads are intercepted:
             * Note: you must do this for each hook.
             */

            Direct3DDevice_EndSceneHook.Activate();
            Hooks.Add(Direct3DDevice_EndSceneHook);

            Direct3DDevice_PresentHook.Activate();
            Hooks.Add(Direct3DDevice_PresentHook);

            if (_supportsDirect3D9Ex)
            {
                Direct3DDeviceEx_PresentExHook.Activate();
                Hooks.Add(Direct3DDeviceEx_PresentExHook);
            }

            Direct3DDevice_ResetHook.Activate();
            Hooks.Add(Direct3DDevice_ResetHook);

            this.DebugMessage("Hook: End");
        }