d200.bmp.txt

Visual C++通信编程实例

#define ECHO_OK
#define ECHO_CONNECT
#define ECHO_RING
#define ECHO_NOCARRJER
#define ECHO_ERROR
#define ECHO_CONNECT1200
#define ECHO_NODIALTONE
#define ECHO_BUSY
#define ECHO NOANSWER
#define CODE_CANNTFIND
#define CODE_OK
#define CODE_CONNECT
#define CODE_RING
#define CODE_NOCARRIER
#define CODE_ERROR
#define CODE_CONNECT1200
#define CODE_NODIALTONE
#define CODE_BUSY
#define CODE_NOANSWER
"OK"／加
"CONNECT"    ／／1
"RING"//2
”NO CARRIER"  ／／断线，／3
"ERROR”//4
”CONNECT 1200"//5无用
”NO DIALTONE"，，6／／5 s内检测不到拨号音
"BUSY"//7
"NO ANSWER"//30
／／与AT命令无关
#define WM_MODEM_CHANGE              WM USER+1000
#define ECHO_COUNT
#define MODE_UNINfflALIZE
#define MODE_UNMODEM
#define MODE_COMMAND
#define MODE_CONNECTING
#define MODE_DATA
#define PURGE_ALL
9
1  ／，未初始化状态
5
10
25
30
PURGE_TXABORT ] PURGE_RXABORT
           IPURGE_TXCLEAR l PURGE_RXCLEAR
#define QUEUE_SIZE 1024*2
#define DIALTIME_START
#define DIALTIME_INTER
#define WArITIME
#defme WAITADDADDADDTIME
#define WAITATHTIME
45000
3000
800
2000
2000
／／缓冲区的长度
／，等待连接字符串的超时
／／等待连接字符串的超时
//SendAT()后等待返回的时间
／，发送+++后的等待时间>1000
／／发送ath后的等待时间
2)构造函数CYsATModem，用来对类的成员变量进行初始化，具体代码如下：
200
CYsATModem::CYsATModem()
{
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