how can I do to know how datas is in my serial buffer ?

[youssef]

Hi,

I would like the command for know how datas I have in my serial buffer when I use CreateFile and ReadFile.

Thanks

 

[youssef]

Hi,
I would like to know how datas is in the InBuffer of my serialport.
I find GetFileSize but nothing.

Can You Help me


ReadFile (hPort, &Byte, 1, &dwBytesTransferred, 0);
dwSize = GetFileSize(hPort, NULL);
// Display the data read.
if (dwBytesTransferred == 1)
// ProcessChar (Byte);
{
m_editReceiveData = Byte;
m_editBuffer = dwBytesTransferred;
m_test = dwSize;
UpdateData(FALSE);
}