C / C++ / MFC

6-May-03 8:24

Hi hope someone can help me out here.

I have a program that recieves data from the serial port of the PC and saves it into a file using:

<br />
byte rec;<br />
<br />
:<br />
:<br />
:<br />
<br />
for(i=0;i<512;i++)<br />
	{<br />
	ReadFile(handlePort, &rec, 1, (LPDWORD)&bytes, NULL);<br />
<br />
	fprintf(out, "%C", rec);<br />
	}<br />

The problem is that it wont save the hex values 0x11 and 0x13 to the file when they are received from the serial port, I'm pretty sure it is because they are control characters, maybe? Also every so often it saves 0x0D to the file!

Any ideas how I can get around this problem?
Thanks in advance,
Paddy

Sean Cundiff6-May-03 8:36

Sean Cundiff

6-May-03 8:36

Check out your fopen statement. I bet it looks like:

fopen("file name", "w");

try this instead:

fopen("file name", "wb");

-Sean
----
Shag a Lizard

Paddy6-May-03 10:16

6-May-03 10:16

Thanks you were right! I changed it and it has *nearly* solved the problem, it got rid of the random 0x0D in the output file but it still won't write 0x11 and 0x13 to the file.

Maybe it is that it isn't reading these values from the port?
Any ideas?

Thanks

JohnnyG6-May-03 15:21

JohnnyG

6-May-03 15:21

Have you tried CFile::SetMode(hFile, O_BINARY) ?

Paddy7-May-03 5:43

7-May-03 5:43

Thanks for the help but I'm actually using win32, non MFC
Paddy

Dr-Kuulun6-May-03 21:24

Dr-Kuulun

6-May-03 21:24

hi,

use the activex control mscomm!
this will solve all your problems.

markus

Dr-Kuulun

Paddy7-May-03 5:48

What is best way to replace CDao classes?

7-May-03 5:48

Thanks for the help.
For some reason I don't actually have that control in my visual studio. Think it is only with the older versions?
Paddy

slacker6-May-03 7:56

slacker

6-May-03 7:56

I noticed that all the CDao??? classes have been depracated in VS2003 and will be removed completely in the next version. What is the best way (best way meaning it won't be depracatted in a year and will be transparent to the users).

slack

Re: What is best way to replace CDao classes?

slacker6-May-03 7:58

slacker

6-May-03 7:58

Sorry i forgot to finsih my thought... What is the best way to replace them.

slack

Worker Thread Question!

peter ho6-May-03 6:55

peter ho

6-May-03 6:55

I tried to create a worker thread. However, I keep get the compile error "error C2665: 'AfxBeginThread' : none of the 2 overloads can convert parameter 1 from type 'unsigned int (__cdecl *)(void)'"

Please help!

many thanks!

p.

//I have a global Thread function:
UINT connection(LPVOID pParam)
{
...

return 1;
}

//Start the worker thread
AfxBeginThread(connection)
{
....
}

Re: Worker Thread Question!

jmkhael6-May-03 7:06

jmkhael

6-May-03 7:06

try
AfxBeginThread ( connection , NULL ) ;

the second param is a user data
if u dont need it u can pass NULL

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: Worker Thread Question!

David Crow6-May-03 7:08

David Crow

6-May-03 7:08

What's the rest of the error? It will tell you what the compiler is expecting. You can also put the cursor on AfxBeginThread() and hit F12. This will take you to the function's prototype.

Re: Worker Thread Question!

valikac6-May-03 8:52

valikac

6-May-03 8:52

Weird. Do you have connection() declared in the interface (*.h) file? AfxBeginThread() takes in as parameters more than one or even two.

Kuphryn

Change CProgressCtrl´s color

VietDelphi6-May-03 6:27

VietDelphi

6-May-03 6:27

How i do to change the color? Confused | :confused:

And the Dialog´s color?

Michael Pauli6-May-03 6:35

Michael Pauli

6-May-03 6:35

Catch WM_PAINT and/or WM_NCPAINT and paint it yourself.

VietDelphi6-May-03 6:43

VietDelphi

6-May-03 6:43

(thank you for your fast answer )

Do i have to do with :

<br />
BEGIN_MESSAGE_MAP(TProgressTimeToComplete, CProgressCtrl)<br />
    //{{AFX_MSG_MAP(TProgressTimeToComplete)<br />
	ON_WM_PAINT()<br />
    //}}AFX_MSG_MAP<br />
END_MESSAGE_MAP()<br />

???

and then?

Michael Pauli7-May-03 0:44

Michael Pauli

7-May-03 0:44

Then you must grab the dc's of the respective wnd's - like this:
(it's the same story in *all* wnd's derived from CWnd - like your ctrl.)

void CMyProgressCtrl::OnNcPaint()
{
// Paint NC-part of window.
CProgressCtrl::OnNcPaint();
// Borrow the dc of the window.
CDC *pdc = GetWindowDC();
if(!pcd)
return;
// Do some stuff ... see below...

// And then release it.
::ReleaseDC(GetSafeHwnd(), (HDC)*pdc);
}

and of more interest to your problem:

void CMyProgressCtrl::OnPaint()
{
// Paint C-part of window.
CProgressCtrl::OnPaint();

CPaintDC dc_paint(this); // Always do this even if you don't want to use it - something interesting goes on in its destructor or something(?).

CDC *pdc = GetDC();
if(!pdc)
return;
CRect irClient;
GetClientRect(irClient);
// Do something...
pdc->Rectangle(0, 0, irClient.Width(), irClient.Height());
}

Good luck!

Regards M.M.

Thanks you ;o)

VietDelphi8-May-03 3:23

VietDelphi

8-May-03 3:23

It was very good to my