www.pudn.com > wsc4c30.zip > LINE.C

/*** line.c ***/ 
 
#include "windows.h" 
#include "wsc.h" 
 
#include "line.h" 
#include "sioerror.h" 
#include "paint.h" 
 
extern HWND hMainWnd; 
extern int  FatalFlag; 
extern int  OnLineFlag; 
 
/*** PRIVATE ***/ 
 
static int ErrorCheck(int Code,char *Text) 
{if(Code<0) SioError(Code,Text); 
 return Code; 
} 
 
/*** PUBLIC ***/ 
 
int GoOnLine(int Port, int BaudCode, int RxQueSize, int TxQueSize) 
{int RetCode; 
 int Version; 
 char Temp[50]; 
 if(OnLineFlag) return TRUE; 
 /* reset Port */ 
 SioReset(-1,1,1); // Set DTR & RTS at port initialization. 
 RetCode = SioReset(Port,RxQueSize,TxQueSize); 
 if(RetCode<0) 
   {wsprintf((LPSTR)Temp,"SioReset:COM%d",1+Port); 
    SioError(RetCode,Temp); 
    return FALSE; 
   } 
 /* set baud rate */ 
 ErrorCheck( SioBaud(Port,BaudCode), "SioBaud"); 
 /* clear receive buffer */ 
 ErrorCheck( SioRxClear(Port), "SioRxClear"); 
 /* no flow control */ 
 ErrorCheck( SioFlow(Port,'N'), "SioFlow"); 
 /* we're done */ 
 Version = SioInfo('V'); 
 wsprintf((LPSTR)Temp,"WSC Version %d.%d.%d", (Version>>8),0x0f&(Version>>4),0x0f&Version); 
 DisplayLine((LPSTR)Temp); 
 OnLineFlag = TRUE; 
 return TRUE; 
} 
 
void GoOffLine(int Port) 
{SioDone(Port); 
 /* we're done */ 
 OnLineFlag = FALSE; 
}