//======================================================================
// Header file
//
// Written for the book Programming Windows CE
// Copyright (C) 2003 Douglas Boling
//======================================================================
// Returns number of elements.
#define dim(x) (sizeof(x) / sizeof(x[0]))

//----------------------------------------------------------------------
// Generic defines and data types
//
struct decodeUINT {                             // Structure associates
    UINT Code;                                  // messages 
                                                // with a function.
    LRESULT (*Fxn)(HWND, UINT, WPARAM, LPARAM);
}; 
struct decodeCMD {                              // Structure associates
    UINT Code;                                  // menu IDs with a 
    LRESULT (*Fxn)(HWND, WORD, HWND, WORD);     // function.
};

//----------------------------------------------------------------------
// Generic defines used by application
#define  ID_ICON             1                  // Application icon
                                                // Resource ID
#define  IDC_CMDBAR          2                  // Command band ID
#define  ID_MENU             3                  // Main menu resource ID
#define  ID_VIEWER           4                  // View control ID

// Menu item IDs
#define  IDM_OPEN            101                // File menu
#define  IDM_EXIT            102
#define  IDM_ABOUT           120                // Help menu

//----------------------------------------------------------------------
// Function prototypes
//
INT MyGetFileName (HWND hWnd, LPTSTR szFileName, INT nMax);

HWND InitInstance (HINSTANCE, LPWSTR, int);
int TermInstance (HINSTANCE, int);

// Window procedures
LRESULT CALLBACK MainWndProc (HWND, UINT, WPARAM, LPARAM);
// Message handlers
LRESULT DoCreateMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoSizeMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoCommandMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoDestroyMain (HWND, UINT, WPARAM, LPARAM);
// Command functions
LPARAM DoMainCommandOpen (HWND, WORD, HWND, WORD);
LPARAM DoMainCommandExit (HWND, WORD, HWND, WORD);
LPARAM DoMainCommandAbout (HWND, WORD, HWND, WORD);

// Dialog procedures
BOOL CALLBACK AboutDlgProc (HWND, UINT, WPARAM, LPARAM);