#ifndef DXUTIL_H
#define DXUTIL_H
#define SAFE_DELETE(p)       { if(p) { delete (p);     (p)=NULL; } }
#define SAFE_DELETE_ARRAY(p) { if(p) { delete[] (p);   (p)=NULL; } }
#define SAFE_RELEASE(p)      { if(p) { (p)->Release(); (p)=NULL; } }
#ifndef UNDER_CE
HRESULT DXUtil_GetDXSDKMediaPathCch( TCHAR* strDest, int cchDest );
HRESULT DXUtil_GetDXSDKMediaPathCb( TCHAR* szDest, int cbDest );
HRESULT DXUtil_FindMediaFileCch( TCHAR* strDestPath, int cchDest, TCHAR* strFilename );
HRESULT DXUtil_FindMediaFileCb( TCHAR* szDestPath, int cbDest, TCHAR* strFilename );
#endif 
HRESULT DXUtil_WriteStringRegKey( HKEY hKey, TCHAR* strRegName, TCHAR* strValue );
HRESULT DXUtil_WriteIntRegKey( HKEY hKey, TCHAR* strRegName, DWORD dwValue );
HRESULT DXUtil_WriteGuidRegKey( HKEY hKey, TCHAR* strRegName, GUID guidValue );
HRESULT DXUtil_WriteBoolRegKey( HKEY hKey, TCHAR* strRegName, BOOL bValue );
HRESULT DXUtil_ReadStringRegKeyCch( HKEY hKey, TCHAR* strRegName, TCHAR* strDest, DWORD cchDest, TCHAR* strDefault );
HRESULT DXUtil_ReadStringRegKeyCb( HKEY hKey, TCHAR* strRegName, TCHAR* strDest, DWORD cbDest, TCHAR* strDefault );
HRESULT DXUtil_ReadIntRegKey( HKEY hKey, TCHAR* strRegName, DWORD* pdwValue, DWORD dwDefault );
HRESULT DXUtil_ReadGuidRegKey( HKEY hKey, TCHAR* strRegName, GUID* pGuidValue, GUID& guidDefault );
HRESULT DXUtil_ReadBoolRegKey( HKEY hKey, TCHAR* strRegName, BOOL* pbValue, BOOL bDefault );
enum TIMER_COMMAND { TIMER_RESET, TIMER_START, TIMER_STOP, TIMER_ADVANCE,
                     TIMER_GETABSOLUTETIME, TIMER_GETAPPTIME, TIMER_GETELAPSEDTIME };
FLOAT __stdcall DXUtil_Timer( TIMER_COMMAND command );
HRESULT DXUtil_ConvertAnsiStringToWideCch( WCHAR* wstrDestination, const CHAR* strSource, int cchDestChar );
HRESULT DXUtil_ConvertWideStringToAnsiCch( CHAR* strDestination, const WCHAR* wstrSource, int cchDestChar );
HRESULT DXUtil_ConvertGenericStringToAnsiCch( CHAR* strDestination, const TCHAR* tstrSource, int cchDestChar );
HRESULT DXUtil_ConvertGenericStringToWideCch( WCHAR* wstrDestination, const TCHAR* tstrSource, int cchDestChar );
HRESULT DXUtil_ConvertAnsiStringToGenericCch( TCHAR* tstrDestination, const CHAR* strSource, int cchDestChar );
HRESULT DXUtil_ConvertWideStringToGenericCch( TCHAR* tstrDestination, const WCHAR* wstrSource, int cchDestChar );
HRESULT DXUtil_ConvertAnsiStringToWideCb( WCHAR* wstrDestination, const CHAR* strSource, int cbDestChar );
HRESULT DXUtil_ConvertWideStringToAnsiCb( CHAR* strDestination, const WCHAR* wstrSource, int cbDestChar );
HRESULT DXUtil_ConvertGenericStringToAnsiCb( CHAR* strDestination, const TCHAR* tstrSource, int cbDestChar );
HRESULT DXUtil_ConvertGenericStringToWideCb( WCHAR* wstrDestination, const TCHAR* tstrSource, int cbDestChar );
HRESULT DXUtil_ConvertAnsiStringToGenericCb( TCHAR* tstrDestination, const CHAR* strSource, int cbDestChar );
HRESULT DXUtil_ConvertWideStringToGenericCb( TCHAR* tstrDestination, const WCHAR* wstrSource, int cbDestChar );
VOID DXUtil_LaunchReadme( HWND hWnd, TCHAR* strLoc = NULL );
HRESULT DXUtil_ConvertGUIDToStringCch( const GUID* pGuidSrc, TCHAR* strDest, int cchDestChar );
HRESULT DXUtil_ConvertGUIDToStringCb( const GUID* pGuidSrc, TCHAR* strDest, int cbDestChar );
HRESULT DXUtil_ConvertStringToGUID( const TCHAR* strIn, GUID* pGuidOut );
VOID    DXUtil_Trace( TCHAR* strMsg, ... );
#if defined(DEBUG) | defined(_DEBUG)
    #define DXTRACE           DXUtil_Trace
#else
    #define DXTRACE           sizeof
#endif
enum ArrayListType
{
    AL_VALUE,       
    AL_REFERENCE,   
};
class CArrayList
{
protected:
    ArrayListType m_ArrayListType;
    void* m_pData;
    UINT m_BytesPerEntry;
    UINT m_NumEntries;
    UINT m_NumEntriesAllocated;
public:
    CArrayList( ArrayListType Type, UINT BytesPerEntry = 0 );
    ~CArrayList( void );
    HRESULT Add( void* pEntry );
    void Remove( UINT Entry );
    void* GetPtr( UINT Entry );
    UINT Count( void ) { return m_NumEntries; }
    bool Contains( void* pEntryData );
    void Clear( void ) { m_NumEntries = 0; }
};
#ifdef UNDER_CE
#define CheckDlgButton(hdialog, id, state) ::SendMessage(::GetDlgItem(hdialog, id), BM_SETCHECK, state, 0)
#define IsDlgButtonChecked(hdialog, id) ::SendMessage(::GetDlgItem(hdialog, id), BM_GETCHECK, 0L, 0L)
#define GETTIMESTAMP GetTickCount
#define _TWINCE(x) _T(x)
__inline int GetScrollPos(HWND hWnd, int nBar)
{
	SCROLLINFO si;
	memset(&si, 0, sizeof(si));
	si.cbSize = sizeof(si);
	si.fMask = SIF_POS;
	if (!GetScrollInfo(hWnd, nBar, &si))
	{
		return 0;
	}
	else
	{
		return si.nPos;
	}
}
#else 
#define GETTIMESTAMP timeGetTime
#define _TWINCE(x) x
#endif 
#endif