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//************************************************************************
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//
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// LCDOutput.h
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//
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// The CLCDOutput class manages LCD hardware enumeration and screen
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// management.
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//
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// Logitech LCD SDK
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//
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// Copyright 2005 Logitech Inc.
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//************************************************************************
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#ifndef _CLCDOUTPUT_H_INCLUDED_
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#define _CLCDOUTPUT_H_INCLUDED_
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#include "LCDManager.h"
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#include "lglcd.h"
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#include "vector"
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typedef std::vector <CLCDManager*> LCD_MGR_LIST;
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typedef LCD_MGR_LIST::iterator LCD_MGR_LIST_ITER;
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class CLCDOutput : public CLCDManager
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{
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public:
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CLCDOutput();
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virtual ~CLCDOutput();
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void AddScreen(CLCDManager* pScreen);
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void LockScreen(CLCDManager* pScreen);
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void UnlockScreen();
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BOOL IsLocked();
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BOOL IsOpened();
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void SetAsForeground(BOOL bSetAsForeground);
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void SetScreenPriority(DWORD priority);
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DWORD GetScreenPriority();
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HRESULT Initialize(lgLcdConnectContext* pContext, BOOL bUseWindow = FALSE);
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// returns TRUE if a new display was enumerated
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BOOL HasHardwareChanged(void);
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// CLCDBase
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virtual HRESULT Initialize();
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virtual HRESULT Draw();
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virtual void Update(DWORD dwTimestamp);
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virtual void Shutdown(void);
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// CLCDManager
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lgLcdBitmap160x43x1 *GetLCDScreen(void);
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BITMAPINFO *GetBitmapInfo(void);
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protected:
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void ActivateScreen(CLCDManager* pScreen);
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void ReadButtons();
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void HandleButtonState(DWORD dwButtonState, DWORD dwButton);
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void HandleErrorFromAPI(DWORD dwRes);
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void CloseAndDisconnect();
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virtual void OnLCDButtonDown(int nButton);
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virtual void OnLCDButtonUp(int nButton);
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protected:
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virtual void OnScreenExpired(CLCDManager* pScreen);
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virtual void OnClosingDevice(int hDevice);
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virtual void OnDisconnecting(int hConnection);
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protected:
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CLCDManager* m_pActiveScreen;
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// list
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LCD_MGR_LIST m_LCDMgrList;
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void EnumerateDevices();
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int m_hConnection;
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int m_hDevice;
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DWORD m_nPriority;
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BOOL m_bLocked, m_bDisplayLocked;
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DWORD m_dwButtonState;
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BOOL m_bSetAsForeground;
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lgLcdConnectContext m_lcdConnectCtx;
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};
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#endif // !_CLCDOUTPUT_H_INCLUDED_
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//** end of CLCDOutput.h *************************************************
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