xtalk.h

本程序演示了使用事件、互斥体、和内存共享的内存映射块

//======================================================================
// Header file
//
// Written for the book Programming Windows CE
// Copyright (C) 1998 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   

#define  IDD_INTEXT          10                // Control IDs
#define  IDD_SENDTEXT        11
#define  IDD_OUTTEXT         12

#define  MMBUFFSIZE          1024              // Size of shared buffer
#define  TEXTSIZE            256

// Interprocess communication structure mapped in shared memory
typedef struct {
    int nAppCnt;
    int nReadCnt;
    TCHAR szText[TEXTSIZE];
} SHAREBUFF;
typedef SHAREBUFF *PSHAREBUFF;

//----------------------------------------------------------------------
// Function prototypes
//
int InitApp (HINSTANCE);
HWND InitInstance (HINSTANCE, LPWSTR, int);
int TermInstance (HINSTANCE, int);

// Window procedures
LRESULT CALLBACK MainWndProc (HWND, UINT, WPARAM, LPARAM);

// Message handlers
LRESULT DoCommandMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoDestroyMain (HWND, UINT, WPARAM, LPARAM);

// Command functions
LPARAM DoMainCommandSend (HWND, WORD, HWND, WORD);
LPARAM DoMainCommandExit (HWND, WORD, HWND, WORD);

// Thread functions
int SenderThread (PVOID pArg);
int ReaderThread (PVOID pArg);