cdirectinput.h

This tutorial will deal with getting input using Direct Input. All you will need to run and/or com

/*
   Class Name:

      CDirectInputSystem, CInputKeyboard, CInputMouse.

   Created by:

      Allen Sherrod (Programming Ace of www.UltimateGameProgramming.com).

   Description:

      These classes are used with DirectInput to get input from a keyboard and/or mouse.
*/


#ifndef CDIRECTINPUT_H
#define CDIRECTINPUT_H

#define LEFT_BUTTON     0                       // Reps the left mouse button.
#define RIGHT_BUTTON    1                       // Reps the right mouse button.

#define KEYS_SIZE       256                     // Total number of keys.

#include<dinput.h>                              // Direct Input header file.

// Prototypes...
class CInputKeyboard;
class CInputMouse;


// Input system class.
class CDirectInputSystem
{
   public:
      CDirectInputSystem();                     // Constructor.
      ~CDirectInputSystem();                    // Destructor.

   public:
      // Initialize our input system and all supported devices.
      bool Initialize(HWND hwnd, HINSTANCE hInstance, bool mouseExclusive = false);
      
      bool AcquireDevices();                    // Gain acces to all devices.
      bool UnAcquireDevices();                  // Take away access.
      bool UpdateDevices();                     // Update the states of the devices.

      bool KeyUp(int key);                      // Check if a key is not pressed.
      bool KeyDown(int key);                    // Check if a key is pressed.

      bool MouseButtonUp(int button);           // Check if a mouse button is not pressed.
      bool MouseButtonDown(int button);         // Check if a mouse button is pressed.

      bool Shutdown();                          // Shutdown the input system.

   protected:
      LPDIRECTINPUT8 m_InputSystem;             // Direct Input device object.
      CInputKeyboard *m_Keyboard;               // Hold our keyboard device.
      CInputMouse *m_Mouse;                     // Hold our mouse device.
};


// Keyboard class.
class CInputKeyboard
{
   public:
      CInputKeyboard();                         // Constructor.
      ~CInputKeyboard();                        // Destructor.

   public:
      bool Initialize(LPDIRECTINPUT8 m_InputSystem, HWND hwnd);   // Initialize the keyboard.

      bool KeyUp(int key);                      // Check if a key is not pressed.
      bool KeyDown(int key);                    // Check if a key is pressed.

      bool AcquireDevice();                     // Gain access to keyboard.
      bool UnAcquireDevice();                   // Take access away.
      bool UpdateDevice();                      // Update device by getting which keys are pressed.

      void ClearKeys();                         // Clear the m_Keys array.
      bool Shutdown();                          // Shut down this device.

   protected:
      LPDIRECTINPUTDEVICE8 m_Keyboard;          // Direct Input device representing the keyboard.
      char m_Keys[KEYS_SIZE];                   // All the keys on a keyboard.
};


// Mouse class.
class CInputMouse
{
   public:
      CInputMouse();                            // Constructor.
      ~CInputMouse();                           // Destructor.

   public:
      // Initialize mouse input device.
      bool Initialize(LPDIRECTINPUT8 m_InputSystem, HWND hwnd, bool isExclusive = false);

      bool ButtonUp(int button);                // Test if a button is not pressed.
      bool ButtonDown(int button);              // Test if a button is pressed.

      bool AcquireDevice();                     // Gain access to our mouse device.
      bool UnAcquireDevice();                   // Take away access to the device.
      bool UpdateDevice();                      // Update the device and get the device states.

      bool Shutdown();                          // Shutdown the mouse input device.

   protected:
      LPDIRECTINPUTDEVICE8 m_Mouse;             // Direct Input device representing the mouse.
      DIMOUSESTATE   m_Mouse_State;             // Object to hold the state of the mouse.
};

#endif


// Copyright March 2003
// All Rights Reserved!
// Allen Sherrod
// [e-mail]
// www.UltimateGameProgramming.com