Re: Serial worker thread help
See below...
"Kahlua" <edward.frederick@verizon.net> wrote in message
news:88d05be7-4147-46f7-8bc0-8499ba4838e1@s50g2000hsb.googlegroups.com...
On Aug 15, 1:20 pm, Victor <Vic...@discussions.microsoft.com> wrote:
I have no idea what *port* and its methods in that code snippet are and
do,
but I'd recommend you to implement the code from Joe Newcomer's essay
""Serial Port I/O":http://flounder.com/serial.htm
Victor
"Kahlua" wrote:
I have a serial worker thread that works with COM-DRV++(serial
wrapper) below.
This worked fine until I needed it to work under Vista.
I have switched to the CreateFile(), ReadFile(), WriteFile() methods.
UINT SerialThread( LPVOID Param ) //Thread to monitor serial activity
{
HWND hDlg = (HWND)Param;
int DataByte=0x00;
int Count=0;
int i;
while(TRUE){
Count=0;
while(Count == 0){
Count = Port.BytesInReceiveBuffer();
Sleep(50);
}
DataByte=Port.GetByte(18);
if (DataByte == 0x10){
for (i=0; i<33; i++){
DataByte=Port.GetByte(18);
Bar[i]=(DataByte & 0xff);
}
}
::PostMessage(hDlg, MY_SERIAL, (WPARAM)0, (LPARAM)0);
}
return TRUE;
}
When the char 10h is received it then gets 33 more chars (all 8bit).
I need to know how to change this to the ReadFile() method.
Thanks- Hide quoted text -
- Show quoted text -
Unfortunatly to me Joe's code seems to be much larger than the minimum
needed and dificult to understand.
**************
No, it is neither "much larger than..." nor "dificult to understand".
It is very simple, it contains comments and it works!
*********************
Port is simply the handle to the COM-DRV++ comport functions.
********************
No, it is NOT a "handle", becuase handle is not any class member and thus it
cannot have any methods.
********************
I looking at my code snippet you cannot tell what "Port" is then you
dont need to answer.
********************
Ok, it will be my last aswer in this thread.
********************
The snippet is only the thread that checks if char came in serial
port.
********************
So does it use ReadFile API or some other technique?
And finally: you asked:
*********************
.... This worked fine until I needed it to work under Vista.
.....
I need to know how to change this to the ReadFile() method
*********************
Joe's code does work. If you think it should be 2-5 lines shorter - just
remove some comments.
If you think that only very very short code may work correctly - then
rethink.
Good luck,
Victor