C / C++ / MFC Discussion Boards

Re: Difference Between DLL and Lib

Anonymous24-Jul-03 0:38

Anonymous

24-Jul-03 0:38

Thanks Everyone

Re: Difference Between DLL and Lib

Dominik Reichl23-Jul-03 23:39

Dominik Reichl

23-Jul-03 23:39

Go to http://webopedia.com/TERM/l/library.html[^].

From there on, browse through linker, runtime, DLL, compiler, etc...

Big Grin | :-D

-Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

left of a string

si_6923-Jul-03 23:23

si_69

23-Jul-03 23:23

Hi All

does ne1 know the best way to find the left part of a CString Confused | :confused:

so if i wanted to find the first 2 characters in mystring

CString mystring "0434324423"

and then compare them, with two other characters

in SQL i would have

if left(mystring,2) = '03'

thanks

si Unsure | :~

Re: left of a string

Dominik Reichl23-Jul-03 23:29

Dominik Reichl

23-Jul-03 23:29

CString mystring = "0434324423";
if(mystring.Left(2) == "03")
{
<Do what you want>
}

-Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

Re: left of a string

User 665824-Jul-03 3:50

User 6658

24-Jul-03 3:50

Nothing easier than this Big Grin | :-D

Sometimes I ask myself whether people don't search the MSDN (no offense) Wink | ;)

regards

modified 12-Sep-18 21:01pm.

WIN32 & WIN32s

vikramlinux23-Jul-03 23:11

vikramlinux

23-Jul-03 23:11

Hi Friends,
Is there any difference between Win32 ans Win32s ? I hope the question is peroper.

Re: WIN32 & WIN32s

Dominik Reichl23-Jul-03 23:31

Dominik Reichl

23-Jul-03 23:31

Yes, there is a difference Smile | :)

See http://www.webopedia.com/TERM/W/Win32s.html[^]

Big Grin | :-D

-Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

Re: WIN32 & WIN32s

vikramlinux23-Jul-03 23:43

vikramlinux

23-Jul-03 23:43

Great information. for me.thanx. Blush | :O

VikramS

Re: WIN32 & WIN32s

Alexander ^M.,24-Jul-03 2:58

Alexander ^M.,

24-Jul-03 2:58

win32s("win32 subset") is an extension for windows 3.1 to support win32!
that's it!

Don't try it, just do it! Wink | ;-)

UNICODE vs. _UNICODE

peterchen23-Jul-03 23:10

peterchen

23-Jul-03 23:10

I noticed that the C libraries test for _UNICODE, while Win32 tests for UNICODE.

Would it be OK to

#ifdef UNICODE 
#define _UNICODE 
#undef _MBCS 
#endif

as first statement in stdafx.h?

"Der Geist des Kriegers ist erwacht / Ich hab die Macht" StS

sighist | Agile Programming | doxygen

Re: UNICODE vs. _UNICODE

Ryan Binns24-Jul-03 1:28

Ryan Binns

24-Jul-03 1:28

Yeah, no problem, or you could just specify both on the command line Smile | :)

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

total mouse control for an application

Raphael Kindt23-Jul-03 22:53

Raphael Kindt

23-Jul-03 22:53

Hello world!

I want that my app capture all mouse messages... not only the view!
With Get/Set/ReleaseCapture that's ok for the view! But when the mouse cursor go out the frame window of my application mouse messages are not send to my app... How to do that?

Thanks in advance...

Hello World!!! Smile | :)

from Raphaël

Re: total mouse control for an application

peterchen23-Jul-03 23:32

peterchen

23-Jul-03 23:32

SetWindowsHookEx(WH_MOUSE, YourHookProcMouse, instance, GetCurrentThreadID())

"Der Geist des Kriegers ist erwacht / Ich hab die Macht" StS

sighist | Agile Programming | doxygen

Infrared socket error

elite1223-Jul-03 22:50

elite12

23-Jul-03 22:50

hi
the following code gives me the error even i included winsock32.lib or ws2_32.lib.

The platform SDK clearly specifies IRDA support.

the WSAGetLastError() returns me 10047
stating "Address family not supported by protocol family. "

this is from MSDN :

SOCKET ServSock;

if ((ServSock = socket(AF_IRDA, SOCK_STREAM, 0)) == INVALID_SOCKET)
{
printf("\n error in sockets : %d", WSAGetLastError());
return;
}

apart form this if any one give me a sample code on IRDA it will be helpful.

Many Thanks!!!

Re: Infrared socket error

geo_m26-Jul-03 4:58

geo_m

26-Jul-03 4:58

see KB266241 BUG: Error 14007 When You Create a Socket Using AF_IRDA.
Maybe you have similar problem

Have anyone an idea?

Nuehli23-Jul-03 22:36

Nuehli

23-Jul-03 22:36

I maked a test application for my HF-Transceiver. To communicate between PC and the Evolationboard of the HF-Transceiver I use the COM Port. I can't use the normal functions for serial communication, because my own telegramm to the transceiver don't have any Start or Stopbits. So I use the functions _inp and _outp to communicate directly with the register from the COM Port at adress 3F8 (COM1). To send the Data I used for synchronization an external clock signal, which I conacted to the CTS Pin. Now, I tested my programm and not all telegramm were correctly send. I modificated my programm to send only 01 as data for testing. With an oscilloscop I meased the CLOCK and DATA pin. I saw the error, the 01 intervall wasn't correctyl send. The error look like this.

CLOCK 01010101010101010101010101
0DATA 00110011001100001100110011
ERROR ( 4 * 0 is not correct)

It's funny, the CLOCK have 4600 baud normally. If i increase the baud rate to 19200 baud, no more error will be found. I don't know, if the problem is windows, because my thread can be stopped by windows, for short time. Or the problem come's from my code. This is my code for my send thread. I hope anyone have an IDEA or anyone can say an Internet adress to this theme THANKS!!!

bool m_bSendBit=false;<br />
bool lastBitOne;<br />
bool lastDataOne=false;<br />
<br />
// Init the clock signal<br />
if(_inp(m_ComBasisAdresse+6)&16)<br />
 lastBitOne=true;<br />
else <br />
 lastBitOne=false;<br />
	<br />
while(!m_bSendBit)<br />
{<br />
 if((_inp(m_ComBasisAdresse+6)&16)&&!lastBitOne)<br />
 { // CLOCK = 1<br />
  m_bSendBit=true;<br />
  lastBitOne=true;<br />
 }<br />
 else if(((_inp(m_ComBasisAdresse+6)|65519)==65519)&&lastBitOne)<br />
 { CLOCK = 0<br />
  m_bSendBit=false;<br />
  lastBitOne=false;<br />
 }<br />
}	<br />
// MAIN LOOP for SENDING<br />
while(m_bRunFlag)<br />
{	<br />
 m_bSendBit=false;<br />
 for(int i=0;i<m_sDatatelegramm.GetLength();i++)<br />
 {<br />
  while(!m_bSendBit)<br />
  {<br />
   if((_inp(m_ComBasisAdresse+6)&16)&&!lastBitOne)<br />
   {//CLOCK = 1<br />
    m_bSendBit=true;<br />
    lastBitOne=true;<br />
   }<br />
   else if(((_inp(m_ComBasisAdresse+6)|65519)==65519)&&lastBitOne)<br />
   {//CLOCK = 0<br />
    m_bSendBit=false;<br />
    lastBitOne=false;<br />
    }<br />
  }<br />
	<br />
  if(!lastDataOne)<br />
  { // DATA = 1 <br />
    _outp(m_ComBasisAdresse+3,64);<br />
    lastDataOne=true;<br />
  }<br />
  else<br />
  { // DATA = 0<br />
   _outp(m_ComBasisAdresse+3,0);<br />
   lastDataOne=false;<br />
   }<br />
   m_bSendBit=false;<br />
 }<br />
 // Last synchronization at end of telegramm<br />
 while(!m_bSendBit)<br />
 {<br />
  if((_inp(m_ComBasisAdresse+6)&16)&&!lastBitOne)<br />
  {<br />
   m_bSendBit=true;<br />
   lastBitOne=true;<br />
  }<br />
  else if(((_inp(m_ComBasisAdresse+6)|65519)==65519)&&lastBitOne)<br />
  {<br />
    m_bSendBit=false;<br />
    lastBitOne=false;<br />
   }<br />
  }<br />
 _outp(m_ComBasisAdresse+3,0);<br />
  Sleep(2);<br />
}

Re: Have anyone an idea?

Toni7824-Jul-03 0:31

Toni78

24-Jul-03 0:31

First of all you should post your code by using < pre > and < /pre > tags.

My first comment would be about the start and stop bits. I think that no matter what, the UART inside the computer will send start and stop bits. I could be wrong because the last time I dealt with UARTs was 3 years ago, so check the books.

Sending clock signals is achieved by XOR-ing the last bit sent with 1 and then sending the new bit. It is faster and requires less hardware (in case you decide to put in hardware).
// Pseudo code
If clock.transition
BitToSend = LastBitSent XOR 1;
LastBitSent = BitToSend;

I think your problem is related to the start and stop bits, that you are ignoring. Check the frequency of the error (how many bits are correct before it happens?). What is CTS by the way because I don't seem to remember (Clear To Send? - if so why is your clock connected there?).
When you say an external clock, do you mean you have a crystal providing the clock signal, or are you sending it through the serial port? (your program looks like it is sending the clock signal through the serial port).

// Afterall, I realized that even my comment lines have bugs

When one cannot invent, one must at least improve (in bed).-My latest fortune cookie

Re: Have anyone an idea?

Nuehli24-Jul-03 0:52

Nuehli

24-Jul-03 0:52

Sorry, I posted for the first time so much code. In my message i marked all code and click "code". Now the colour is brown. Is this not OK?
The Start & Stopbit will be send by the normal functions of "Visual C++". Only with the functions _inp and _outp I can only send my bits.The error didn't appear at all telegramm. Only in some telegramm.
Your are right, the CTS pin is normaly (CLEAR TO SEND). But I connected the extern created clock (from the transceiver or Waveform Generator) to this pin, becauce I can read this pin in the register with _inp.

Re: Have anyone an idea?

Toni7824-Jul-03 1:46

Toni78

24-Jul-03 1:46

Nuehli wrote:
Sorry, I posted for the first time so much code.

No, no, it's okay, but it is always a good idea to use &lg pre > tags. Some comments would be great too because I don't understand statements such as this one:
else if(((_inp(m_ComBasisAdresse+6)|65519)==65519)&&lastBitOne) (there are more statements that I don't understand).
Still it is not very clear why the clock is connected with clear to send (doesn't the uart reset that signal on its own?). Every time the clock goes high, you send data out, right?
Did you check the error frequency?

// Afterall, I realized that even my comment lines have bugs

When one cannot invent, one must at least improve (in bed).-My latest fortune cookie

Parallel Lines

Paul Selormey23-Jul-03 21:55

Paul Selormey

23-Jul-03 21:55

Anyone has algorithm for drawing a line parallel to another line?

Best regards,
Paul.

Jesus Christ is LOVE! Please tell somebody.

Re: Parallel Lines

Dominik Reichl23-Jul-03 22:01

Dominik Reichl

23-Jul-03 22:01

Paul Selormey wrote:
Anyone has algorithm for drawing a line parallel to another line?

Line    : (x|y)     to (p|q)<br />
Parallel: (x+i|y+j) to (p+i|q+j)

Is it that what you wanted?

Confused | :confused:

-Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

Re: Parallel Lines

Cedric Moonen23-Jul-03 22:16

Cedric Moonen

23-Jul-03 22:16

Another solution if you have only the line equation: y = a*x+b.

Just change the offset value (b), the slope will be the same: y' = a*x' + c.

Hope this helps

Re: Parallel Lines

Ryan Binns24-Jul-03 1:37

Ryan Binns

24-Jul-03 1:37

How is your line specified at the moment? How you draw the next line will depend on that.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Re: Parallel Lines

Bob Stanneveld24-Jul-03 1:39

Bob Stanneveld

24-Jul-03 1:39

If you want to draw your line parallel to an existing line, you should store the points of that other line. You can use the suggestions provided by the others for drawing, they work perfect! Smile | :)

good luck!

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Re: Parallel Lines

Paul Selormey24-Jul-03 1:55

Paul Selormey

24-Jul-03 1:55

Thank you all for your support. I really need a routine which will work with polylines, handling the joints as well.

Best regards,
Paul.

Jesus Christ is LOVE! Please tell somebody.

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