|Microsoft DirectX 9.0|
After your application sets the keyboard's behavior, it can acquire access to the device by calling the IDirectInputDevice8::Acquire method. The application must acquire the device before retrieving data from it. The IDirectInputDevice8::Acquire method accepts no parameters.
The following line of sample code acquires the keyboard device that was created in Step 2: Creating the DirectInput Keyboard Device.
if (g_lpDIDevice) g_lpDIDevice->Acquire();
Now that your application has acquired access to the keyboard, go to Step 6: Retrieving Data from the Keyboard.