给我一个用API访问串口的示例吧！！

Question

我有些这样的类，要的话来信，我发给你吧。[email protected]

Answer 1

我也想要[email protected]谢谢~~

Answer 2

给我也发吧。谢谢！
[email protected]

Answer 3

HANDLE hCom;
DCB dcb;
char SendAddr[255];
int BaudRate=9600;
lstrcpy(SendAddr,"COM1")
hCom=CreateFile(SendAddr,
       GENERIC_READ|GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
0,
NULL
); 
if(hCom==INVALID_HANDLE_VALUE)
 { AfxMessageBox("通讯口被其他占用");return;}bSuccess=GetCommState(hCom,&dcb);
if(!bSuccess){AfxMessageBox("无法得到通讯口的信息");return;}dcb.BaudRate=BaudRate;
dcb.ByteSize=8;
dcb.fParity=FALSE;
dcb.Parity=NOPARITY;
dcb.StopBits=ONESTOPBIT;
bSuccess=SetCommState(hCom,&dcb);
COMMTIMEOUTS CommTimeouts;
if(!bSuccess){AfxMessageBox("无法初始通讯口");return;}SetCursor(LoadCursor(NULL,IDC_WAIT));
 
//------------------------
GetCommTimeouts(hCom,&CommTimeouts);
CommTimeouts.ReadTotalTimeoutConstant=1000;
CommTimeouts.WriteTotalTimeoutConstant=1000;
SetCommTimeouts(hCom,&CommTimeouts);//可对hCom当文件一样读写
  WriteFile(hCom,buffer1,1,&count,NULL);
  ReadFile(hCom,buffer,1,&count,NULL);
//--------------------------------------
 end:SetCursor(LoadCursor(NULL,IDC_ARROW));
CloseHandle(hCom);