#ifndef UNREFERENCED_PARAMETER
#define UNREFERENCED_PARAMETER(P)          \
    { \
        (P) = (P); \
    }
#endif            



#define IMAGE_ITEM            0
#define IMAGE_FOLDER_CLOSED   1
#define IMAGE_FOLDER_OPEN     2

/* menu positions */
#define FILE_MENU_POS         0
#define VIEW_MENU_POS         1
#define TABLES_MENU_POS       2
#define OPTIONS_MENU_POS      3
#define DATASET_MENU_POS      4
#define VIEWOPT_MENU_POS      5
#define PROCESS_MENU_POS      6

#define DICOM_ERROR_USER_CLIENT_ADDRESS 900
#define DICOM_ERROR_USER_CLIENT_TITLE   901
#define DICOM_ERROR_USER_SERVER_TITLE   902

#define SCROLL_RATIO                10


#ifndef RECTWIDTH
   #define RECTWIDTH(lpRect) (((LPRECT) lpRect)->right -((LPRECT) lpRect)->left)
   #define RECTHEIGHT(lpRect) (((LPRECT) lpRect)->bottom -((LPRECT) lpRect)->top)
#endif


typedef struct _CODETEXT
{
   L_INT     nCode;
   L_CHAR   *pszText;
} CODETEXT, *pCODETEXT;


typedef struct tagDATA
{
   L_CHAR        szFilename[L_MAXPATH];/* File name to load. */
   BITMAPHANDLE  Bitmap;               /* BITMAP HANDLE to hold image. */
   HDICOMDS      hDicomDS;             /* handle to Dicom DS */
   WNDPROC       OldProc;
   L_BOOL        bLoaded;
   L_BOOL        bModule;
   L_BOOL        bHighLevel;
   L_UINT16      LoadFlags;
   L_UINT16      SaveFlags;
   L_INT32       nSaveCompression;
   L_INT32       nSavePhotometric;
   L_INT32       nSaveBitsPerPixel;
   L_INT32       nSaveQFactor;
   pDICOMELEMENT pCurrentElement;
   L_UINT32      nCurrentModule;
   HIMAGELIST    hImageList;
   HINSTANCE     hInst;
   HBITMAPLIST   hBitmapList;
   L_UINT32      BitmapListCount;
   L_UINT32      BitmapListIndex;
   RECT          rcDst;
   L_BOOL        bAnimationLoop;
   L_BOOL        bAnimationPlay;
   L_BOOL        bFit;
   L_INT         Zoom;
   L_BOOL        bImage;
   L_INT         Width;
   L_INT         Height;
   L_BOOL        bChild;
   L_BOOL        bSequence;
   L_UINT32      lTagCode;
   L_UINT32      lModuleCode;
   /* scroll stuff */
   L_INT         nVScrollMax;
   L_INT         nVScrollPos;
   L_INT         nVScrollStep;
   L_INT         nHScrollMax;
   L_INT         nHScrollPos;
   L_INT         nHScrollStep;
   L_INT         cxClient;
   L_INT         cyClient;
   L_UINT32      lItemCount;
   L_CHAR L_FAR* pItems;
} DATA;

DATA        Data;                             /* DATA structure. */

L_CHAR      m_szPath[MAX_PATH];
HDICOMDS    m_hDir;
L_BOOL      m_bHighLevel;
L_BOOL      m_bDICOMDir;


LRESULT CALLBACK DicomDlgProc       (HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
// Deletes the selected element.
L_VOID        DeleteElement      (HDICOMDS hDir, pDICOMELEMENT pKey, L_UINT32 nTag);
// Find a specify key into DICOMDIR file.
pDICOMELEMENT FindKey            (HDICOMDS hDir, L_CHAR *pszValue, pDICOMELEMENT pParent);
// Copy an element from DICOM file to DICOMDIR file.
L_VOID        CopyElement        (pDICOMELEMENT pElementDir, HDICOMDS hDir, HDICOMDS hDS, L_UINT32 nTag);
// Copy an element from DICOM file to DICOMDIR file. This function is used when the tag number is not the same.
L_VOID        CopyElementEx      (pDICOMELEMENT pElementDir, HDICOMDS hDir, HDICOMDS hDS, L_UINT32 nTagDir, L_UINT32 nTagDS);
// Create DICOMDIR file and insert new key if it is necessary.
L_BOOL        CreateDir          (HDICOMDS hDir, HDICOMDS hDS, L_CHAR *pszImag);
// Adds information from DICOM file to DICOMDIR file.
L_BOOL        AddToDICOMDIR      (HDICOMDS hDir, L_CHAR *pszImagPath);
// Display the aplication status.
L_VOID        DisplayStatus      (L_CHAR *pszStatus, HWND hDlg);
// Browse Button 
L_VOID        BrowseButton       (HWND hDlg);
 // Find the DICOM files in the selected directory.
L_BOOL        FindDICOMFiles     (L_CHAR *pszDir, HWND hDlg);
// Get the selected folder.
L_BOOL        GetFolder          (char* szSelectedFolder, const char* lpszTitle, const HWND hwndOwner, const char* strRootFolder, const char* strStartFolder);
// Insert a new element in TreeControl.
HTREEITEM     InsertTreeElement  (HWND hDlg, HTREEITEM hParentTree, pDICOMELEMENT pElement);
// Fill subtree items.
L_VOID        FillTree           (HWND hDlg, HDICOMDS hDir, HTREEITEM hParentTree, pDICOMELEMENT pParentElement);
// Fill subtree items.
L_VOID        FillSubTree        (HWND hDlg, HDICOMDS hDir, HTREEITEM hParentTree, pDICOMELEMENT pParentElement);
// Display the element value.
L_VOID        ShowValue          (HWND hDlg, HDICOMDS hDir, HTREEITEM hItem);
L_VOID        HandleNotify       (HWND hDlg, WPARAM idCtl, LPNMHDR pNMHDR);
// Convert error code in message.
L_VOID        ConvertError       (L_INT nError, L_CHAR *pszError);

L_VOID      DrawImageBtn(HWND hDlg, LPDRAWITEMSTRUCT pds);
L_VOID      PaintBitmap(HDC hDC, LPRECT pDest, pBITMAPHANDLE pBitmap);
//Displays the bitmap
L_VOID      DisplayBitmap(HWND hDlg, pDICOMELEMENT pElement, HDICOMDS hDir);
L_INT L_FAR L_EXPORT LoadCallback(pFILEINFO pFileInfo,
                                  pBITMAPHANDLE pBitmap,
                                  L_UCHAR L_FAR *pBuffer,
                                  L_UINT uFlags,
                                  L_INT nRow,
                                  L_INT nLines,
                                  L_VOID L_FAR* pUserData);
L_VOID      DisplayImage(HWND hDlg, pDICOMELEMENT pElement, HDICOMDS hDir);
L_VOID      UpdateScrollBars(HWND hDlg);
L_VOID      MatchAspectRatio (LPRECT pRect, L_INT nWidth, L_INT nHeight);