[翻译]-WinCE 程序设计 (3rd 版)--2.2 输出文本[2]

TextDemo示例程序
TextDemo程序，演示了文本颜色、背景色和背景模式之间的关系。程序如列表2-1所示：
列表2-1：TextDemo程序
TextDemo.h
//================================================================
// 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.
};
  
//----------------------------------------------------------------------
// Function prototypes
//
HWND InitInstance (HINSTANCE, LPWSTR, int);
int TermInstance (HINSTANCE, int);
  
// Window procedures
LRESULT CALLBACK MainWndProc (HWND, UINT, WPARAM, LPARAM);
  
// Message handlers
LRESULT DoPaintMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoDestroyMain (HWND, UINT, WPARAM, LPARAM);