keyboard.h

MudMaster 2000 的C++源码

/************************************************************************************
	Copyright (c) 2000 Aaron O'Neil
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// Control key modifiers.
#define KEYBOARD_ALT			1000
#define KEYBOARD_CONTROL	2000
#define KEYBOARD_SHIFT		4000
#define KEYBOARD_ENHANCED	8000

struct KEYBOARDCHAR
{
	// Ascii key value.
	unsigned char chKey;

	// Device independant key code. VK_
	WORD wKeyCode;

	// The key's ID is created from the scan code.  The defines
	// for the control key states are added to the scan code to
	// create the ID.
	WORD wKeyID;

	// This is set to TRUE when a non-ascii char is being returned.
	// This would be set for any of the alt-keys, function keys, etc...
	BOOL bSpecial;

	// Set when an enhanced key is pressed.
	BOOL bEnhanced;

	// True if this is an alt-key combination.
	BOOL bAlt;

	// True if this is a shift-key combination.
	BOOL bShift;

	// True if this is a control-key combination.
	BOOL bControl;

	// This is set to TRUE if there are more events in the
	// input buffer waiting.  They may or may not actually
	// be keyboard events.
	BOOL bMoreEvents;
};

class CKeyboard
{
public:
	CKeyboard();

	// Returns TRUE if a key was put in the structure.
	// The key routines will return a code for any key hit on
	// the keyboard (shift, alt, ctrl, etc...), only want to
	// return the key if it is NOT a control key.  This function
	// will not wait for a key to be readied.  If there is 
	// nothing to read, it returns FALSE.
	BOOL GetKey(KEYBOARDCHAR &kbch);

private:
	
	// Handle to the input buffer.
	HANDLE	m_hInput;

	// Used so I don't have to keep allocating one.
	INPUT_RECORD m_ir;
};