/*
 * actdesk.h - active desktop prop sheet extension
 */

#ifndef _ACTDESK_H_
#define _ACTDESK_H_

#ifdef __cplusplus


#define REGSTR_ACTIVEDESKTOP   TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\ActiveDesktop")
#define REGVAL_NOTICKERDISPLAY TEXT("NoTickerDisplay")
#define REGVAL_TICKERINTERVAL  TEXT("TickerInterval")
#define REGVAL_TICKERSPEED     TEXT("TickerSpeed")
#define REGVAL_NONEWSDISPLAY   TEXT("NoNewsDisplay")
#define REGVAL_NEWSINTERVAL    TEXT("NewsInterval")
#define REGVAL_NEWSUPDATE      TEXT("NewsUpdate")
#define REGVAL_NEWSSPEED       TEXT("NewsSpeed")

#define MAX_NEWS_INTERVAL     120
#define MAX_TICKER_INTERVAL   120
#define MAX_NEWS_UPDATE       120

typedef struct _ActiveDesktopInfo
{
    BOOL fTicker;
    int  iTickerInterval;       // 30sec, e.g.
    int  iTickerSpeed;          // Stop -- Fast

    BOOL fNews;
    int  iNewsInterval;         // 30sec, e.g.
    int  iNewsUpdate;           // 30min, e.
    int  iNewsSpeed;            // Stop -- Fast
} ACTIVEDESKTOPINFO, *LPACTIVEDESKTOPINFO;

BOOL_PTR CALLBACK CActDesktopExt_DlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);


class CActDesktopExt : IShellPropSheetExt
{    
public:

    CActDesktopExt();
   ~CActDesktopExt();
   
    // IUnknon methods...
    STDMETHODIMP            QueryInterface(REFIID,void **);
    STDMETHODIMP_(ULONG)    AddRef(void);
    STDMETHODIMP_(ULONG)    Release(void);

    // IShellPropSheetExt methods...
    STDMETHODIMP AddPages(LPFNADDPROPSHEETPAGE pfnAddPage, LPARAM lParam);
    STDMETHODIMP ReplacePage(UINT uPageID, LPFNADDPROPSHEETPAGE pfnReplaceWith, LPARAM lParam);

protected:
    HRESULT _CreateActiveDesktopPage(HPROPSHEETPAGE* phpsp, LPVOID pvReserved);    
    UINT _cRef;    
};


#endif  // __cplusplus


//
// Prototypes for all modules
//
#ifdef __cplusplus
extern "C" {
#endif
    
STDAPI CActDesktopExt_CreateInstance(LPUNKNOWN punkOuter, REFIID riid,  OUT void **ppvOut);

#ifdef __cplusplus
};
#endif


#endif