/*[]=====================================================================[]*/
/*[]     LEADTOOLS for Windows -                                         []*/
/*[]                                                                     []*/
/*[]                                                                     []*/
/*[]     Copyright (c) 1991-2000 LEAD Technologies, Inc.                 []*/
/*[]     All Rights Reserved.                                            []*/
/*[]=====================================================================[]*/

/* maximum path name length */
#define MAXFILENAME                 _MAX_PATH

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

typedef struct tagWINDOWDATA
{
   HPALETTE hPalette;           /* palette handle used by PaintDC */
   L_INT cxClient;              /* width of client area */
   L_INT cyClient;              /* height of client area */
   L_INT cxHeight;
   L_INT cxWidth;
   L_INT nHScrollPos;           /* x scroll position */
   L_INT nVScrollPos;           /* y scroll position */
   L_INT nHScrollMax;           /* maximum x scroll position */
   L_INT nVScrollMax;           /* maximum y scroll postion */
   L_INT nHScrollStep;          /* x scroll step value */
   L_INT nVScrollStep;          /* y scroll step value */
   L_INT nScalar;
   RECT rcView;
   L_TCHAR szFilename[MAXFILENAME];  /* open bitmap filename */
   L_TCHAR szImageDir[MAXFILENAME];  /* hold image directory path */
   FILEINFO FileInfo;           /* open bitmap FILEINFO structure */
   BITMAPHANDLE Bitmap;         /* open BITMAPHANDLE */
} WINDOWDATA;
#define IDI_MAIN  100

#define IDM_OPEN                    100
#define IDM_EXIT                    103
#define IDM_ABOUT                   200
#define IDM_OK                      101

#define IDM_NORMAL                  229
#define IDM_ZOOMIN2                 230
#define IDM_ZOOMIN3                 231
#define IDM_ZOOMIN4                 232
#define IDM_ZOOMIN5                 233
#define IDM_ZOOMIN6                 234
#define IDM_ZOOMIN7                 235
#define IDM_ZOOMIN8                 236

#define IDM_ZOOMOUT2                237
#define IDM_ZOOMOUT3                238
#define IDM_ZOOMOUT4                239
#define IDM_ZOOMOUT5                240
#define IDM_ZOOMOUT6                241
#define IDM_ZOOMOUT7                242
#define IDM_ZOOMOUT8                243

/* maximum number of steps between scroll extremes */
#define SCROLL_RATIO                10

#define CHILDCREATELPARAM(lpCreateStruct) (((LPCREATESTRUCT) ((lpCreateStruct)->lpCreateParams))->lParam)

/* useful rectangle macros */
#define RECTWIDTH(lpRect) (((LPRECT) lpRect)->right - ((LPRECT) lpRect)->left)
#define RECTHEIGHT(lpRect) (((LPRECT) lpRect)->bottom - ((LPRECT) lpRect)->top)

/*  Data Structure */
WINDOWDATA Data;                /* data type used in the program */
HWND hDlgModeless;              /* handle to Modeless dialog box */
HINSTANCE hInstApp;             /* instance of application */
BOOL fInScroll;                 /* Flag for Scrolling */
HANDLE hImageWindow;            /* image window handle */

L_BOOL InitApplication (HANDLE hInstance);
L_BOOL InitInstance (HANDLE hInstance, L_INT nCmdShow);
LRESULT CALLBACK L_EXPORT AboutDlgProc (HWND hDlg, UINT Msg, WPARAM wParam, LPARAM lParam);
VOID About_OnCommand (HWND hwnd, L_INT id, HWND hwndCtl, UINT codeNotify);
L_INT32 EXT_FUNCTION MainWndProc (HWND hWnd, L_UINT Message, WPARAM wParam,
                                   LPARAM lParam);
VOID Window_OnHScroll (HWND hWnd, HWND hWndCtl, UINT nCode, L_INT nPos);
VOID Window_OnVScroll (HWND hWnd, HWND hWndCtl, UINT nCode, L_INT nPos);
VOID Window_OnSize (HWND hWnd, UINT nState, L_INT nCx, L_INT nCy);
VOID Window_OnCommand (HWND hWnd, L_INT id, HWND hwndCtl, UINT codeNotify);
VOID Window_OnPaletteChanged (HWND hWnd, HWND hWndPaletteChange);
BOOL Window_OnQueryNewPalette (HWND hWnd);
VOID Window_OnPaletteChanging(HWND hWnd, HWND hWndPaletteChange);
VOID Window_SysColorChange(HWND hwnd);
VOID Window_OnActivate(HWND hwnd, UINT state, HWND hwndActDeact, BOOL fMinimized);
VOID Window_OnPaint (HWND hWnd);
BOOL Window_OnEraseBkgnd (HWND hWnd, HDC hDC);
VOID Window_OnDestroy (HWND hWnd);

L_BOOL GetOpenBitmapFile (HWND hWnd, LPTSTR pFilename);
L_BOOL ImageLoad (HWND hWnd, LPTSTR lpFileName);
L_INT ScaleDimension (L_INT nWidth, L_INT nFactor);
L_VOID Scale_Image (HWND hWnd, L_INT nScalar);