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I need to read the serial port, but I cannot read it.
I had configure the DCB structure with baud rate of 9600, NOPARITY, 1 Stop bit, and 8 bits of ByteSize.
I can write to the port, I'm using the function WriteFile, and it works fine.
But when I attempt to read the serial port, it fails.
The code is:
ReadFile(hDevComm, chInput, 10, &dwBytesRead, NULL)
and the return value is OK and dwBytesRead 0
thanks in advance!
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There's a couple of articles here on CodeProject that explains that.
Take a look here: http://www.codeproject.com/system/
- Anders
Money talks, but all mine ever says is "Goodbye!"
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Hi! This should be a easy task for most of you, and it sounds easy, but i can't find in my SDI with MFC aplication where to use WS_MAXIMIZE, but i'm not sure if this is the appropriate procedure because WS_MAXIMIZE is related to a window not an aplication, can you help me?
Thank you
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Thank you Nishant S, but what i see now is that the Frame maximizes but it quickly returns to its normal (not maximized) state, i tracked the int nCmdShow argument and i noticed that its value keep being 3 until it reaches a CFrameWnd function :
void CFrameWnd::InitialUpdateFrame(CDocument* pDoc, BOOL bMakeVisible)
inside this function, nCmdShow, returns to its 'default' value 1, why does this happends?
Thanks
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I created a new SDI app using VC++ 6 and added the code I had shown. And the app started maximized and without a flicker as well. If it returns to a normal state for you, you must have over ridden some other functions as well.
Do this :-
(1) Create a fresh SDI app
(2) Use the code I had shown in the first post
Nish
Author of the romantic comedy
Summer Love and Some more Cricket [New Win]
Review by Shog9
Click here for review[NW]
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Well, i did it, and it worked, i don't know why it doesn't in my application, what do you think is most probable to be happening? What else can i look for to find where am i iver ridden other functions, i keep on debbuging but i can't find the reasin for the Frame to come back to its 'normal' state!
Thank you
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Well, i guess i found the reason, when i change windows i use:
pNewActiveView->Create(NULL, NULL, 0L, CFrameWnd::rectDefault, this, ViewID, &context);
pNewActiveView->OnInitialUpdate();
maybe its because of the CFrameWnd::rectDefault that it over rides that argument, what do you think? How can i change it to maximized, i look at its member function and variables but nothing seemed to fit with my intents!
Thanks
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Well, it was not what i expected
I'll trying to find witch function i over ride, if there is someone who has a ideia i would appreciate very much an advise.
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Hoorah, viva!!!
I found it!! I was making
m_pMainWnd->ShowWindow(TRUE);
instead of m_pMainWnd->ShowWindow(SW_SHOW);
in my C..app file
Thank you for your time
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Is There any CListCtrl Class Support the Printing ..???
i wanna the Report view..Look like The Seagate Crystal Report.
Renjith-The CPian.
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I don't think so, I think you need to draw the control into your CPrintDC.
Christian
I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002
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Renjith, see this article.
/ravi
Let's put "civil" back into "civilization"
http://www.ravib.com
ravib@ravib.com
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That was blasphemous
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Does anyone know how to get the outline for a bitmap?
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do you mean something more complicated than drawing a rectangle?
-c
Garbage collection, making life better - for weenies!
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Hi again,
IE has a field of standard buttons. Is it possible to add a button to that field and attach some code to it to be invoked when the button is pushed?
Thx a lot,
/Tommy
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Hi everybody,
I wish to perform some action on a piece of selected text, grabbed from within IE. So, when for example double clicking a word in explorer, the word gets selected. Immediately I would like my code to execute to perform some nifty action. Does anyone know how to accomplish this, any pointers?
Seems like a difficult task, but is it really?
/Tommy
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hi .. i want to write a bitmap to a file , the code which ive written is
BOOL COpenbitmapDlg::WriteDIB(LPTSTR szFile, HANDLE hDIB)
{
//----------------------------------------
BITMAPFILEHEADER hdr ;
LPBITMAPINFOHEADER lpbi ;
if(!hDIB)
return FALSE ;
CFile file ;
if(!file.Open(szFile,CFile::modeWrite|CFile::modeCreate))
return FALSE ;
lpbi=(LPBITMAPINFOHEADER)hDIB;
int nColors = 1 << lpbi->biBitCount;
hdr.bfType = ((WORD) ('M' << 8) | 'B'); // is always "BM"
hdr.bfSize = GlobalSize (hDIB) + sizeof( hdr );
hdr.bfReserved1 = 0;
hdr.bfReserved2 = 0;
hdr.bfOffBits = (DWORD) (sizeof( hdr ) + lpbi->biSize +
nColors * sizeof(RGBQUAD));
file.Write( &hdr, sizeof(hdr) );
// Write the DIB header and the bits
file.Write( lpbi, GlobalSize(hDIB) );
//file.WriteHuge(lpbi,GlobalSize(hDIB)):
return TRUE;
}
and then i pass it a bitmap handle which i use to open simple bitmap files.
this code do create a file .. but when i try to check dat file i get an error message , secondly the file size is also very much less than the orignal file.
looking for ure hlp
looking forward from all the gurus of code
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try:
BYTE* pDib = (BYTE*)GlobalLock(hDIB);
replace hDIB with pDib and call GlobalUnlock(pDib); at the end.
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what the hell...u agian.since 1981 u r asking the same question.
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My problem is that I can not compare the character 13 which is carriage return and the character 10 newLine. I attemp to do f.e
char buffer[10];
if ((buffer[ct]==\13)||(buffer[ct]==\10))
too I have attempt:
if ((buffer[ct]==0x0D)||(buffer[ct]==0x0A))
also
if ((buffer[ct]==char(13))||(buffer[ct]==char(10))
but any other way it works fine. I don´t know why it is the cause. The program entry not for this way.
thanks in advance.
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To do character comparisons you would use:
'\r' , '\n' or '\016' (13) or '\013' (10) octal
Roger Allen
Sonork 100.10016
If I had a quote, it would be a very good one.
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If you use iostreams, then GetLine will work perfectly and you can even set the delimiter.
The std library CANES the MFC container and file classes.
Christian
I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002
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