C / C++ / MFC Discussion Boards

AbinThomas22-Apr-04 1:47

22-Apr-04 1:47

-----edit box creation on pressing F4 key-----
case VK_F4:
{
CMainFrame* pMainWnd = (CMainFrame*) AfxGetMainWnd();
pEdit = new CEdit;
pEdit->Create(ES_AUTOVSCROLL | ES_WANTRETURN | WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_BORDER,
CRect(0,col+(m_nCurSel*2),75,col+(m_nCurSel*2)+17), this, IDC_ED);
pEdit->SetLimitText(50);
pEdit->SetFocus();
}
------ function that receives keypress---
void CMarketWatchView::OnEditKeyDown(UINT nChar)
{
static const MSG* pMsg = GetCurrentMessage();
if(pMsg->wParam==0x0D) //checkfor enter key
{
AfxMessageBox("Enter key");
- other code here-
}
pEdit->SetFocus();
}
---------lost focus function for the edit box ----
void CMarketWatchView::OnEditKillFocus()
{
char buf[50];
pEdit->GetWindowText(buf,49);

--other code here--
Invalidate(FALSE); //redraw
delete pEdit;
}

Re: this is the code

jmkhael22-Apr-04 1:50

jmkhael

22-Apr-04 1:50

Why are you killing the edit in the OnEditKillFocus?

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: this is the code

Steve S22-Apr-04 1:58

Steve S

22-Apr-04 1:58

I'd guess that they want to implement 'in-place' editing of text in a view, and clicking somewhere else is intended to complete/cancel the edit, collapsing the box.
Of course, that's only based on a glimpse of the code fragment, so I could be completely wrong Smile | :)

Steve S

Re: this is the code

jmkhael22-Apr-04 2:00

jmkhael

22-Apr-04 2:00

I meant why not hiding it?

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: this is the code

Steve S22-Apr-04 21:43

Steve S

22-Apr-04 21:43

OIC. That's a good question...

Steve S

activeX Placement/Resizing

Abhi Lahare22-Apr-04 0:06

Abhi Lahare

22-Apr-04 0:06

Hi all,

How to resize/place the activeX control in a container window, By default the
activeX control is resized to Full window size in which it is hosting how i can avoid that.

Thanks in Advance,
Abhishake

iostream.h/fstream.h???

roadragedave22-Apr-04 0:01

roadragedave

22-Apr-04 0:01

Why is iostream.h & fstream.h missing from VC++.NET include folders.
If I copy the same files from VC6.0 then I get errors in those files.
What can I do, where can I get those header files and if not what headers can I use instead of fstream.h

We have a mathematician, a different kind of mathematician, and a statistician!

Re: iostream.h/fstream.h???

toxcct22-Apr-04 0:19

toxcct

22-Apr-04 0:19

try to include instead :
#include <iostream>
#include <fstream>

TOXCCT >>> GEII power

Re: iostream.h/fstream.h???

Paul Ranson22-Apr-04 0:22

Paul Ranson

22-Apr-04 0:22

"iostream.h" and "fstream.h" are not part of C++. Look at "iostream" and "fstream" and then the 'std::' scope.

#include <iostream>
#include <iomanip>
#include <fstream>

void SomeFuncToReadFile ( const char * sFile )
{
   std::ifstream in ( s ) ;
   if ( !in )
   {
      std::cerr << "Couldn't open input file : " << s << std::endl ;
      return ;
   }
   in.unsetf(std::ios::skipws) ;

   // do whatever with the file
}

Paul

Cleanest way to convert a two character string like "4D" to it's hex-equivalent-number ?

ohadp21-Apr-04 23:57

ohadp

21-Apr-04 23:57

I currently do:

_stscanf(string, L"%x", &number);

it doesn't seem like any of the atoi/l functions can handle hexa-decimal input,

any suggestions for something cleaner, or is as clean as it gets ? Smile | :)

Re: Cleanest way to convert a two character string like "4D" to it's hex-equivalent-number ?

toxcct22-Apr-04 0:13

toxcct

22-Apr-04 0:13

do this :

<font style="color:blue;">char</font> str[2];            <font style="color:green;">// stored with your two characters</font>
<font style="color:blue;">unsigned char</font> ucConvertedNumber,
              MSB,              <font style="color:green;">// most significant bits</font>
              LSB;              <font style="color:green;">// less significant bits</font>

LSB = ((str[1] >= <font style="color:purple;">'0'</font>) && (str[1] <= <font style="color:purple;">'9'</font>)) ? str[1] - <font style="color:purple;">'0' </font>:
      ((str[1] >= <font style="color:purple;">'a'</font>) && (str[1] <= <font style="color:purple;">'f'</font>)) ? str[1] - <font style="color:purple;">'a' </font>+ 10 :
      ((str[1] >= <font style="color:purple;">'A'</font>) && (str[1] <= <font style="color:purple;">'F'</font>)) ? str[1] - <font style="color:purple;">'A' </font>+ 10 : -1; <font style="color:green;">// this happens only if your string is not a correct hexa representation</font>
<font style="color:green;">// do some error checking here...</font>
 
MSB = ((str[0] >= <font style="color:purple;">'0'</font>) && (str[0] <= <font style="color:purple;">'9'</font>)) ? str[0] - <font style="color:purple;">'0' </font>:
      ((str[0] >= <font style="color:purple;">'a'</font>) && (str[0] <= <font style="color:purple;">'f'</font>)) ? str[0] - <font style="color:purple;">'a' </font>+ 10 :
      ((str[0] >= <font style="color:purple;">'A'</font>) && (str[0] <= <font style="color:purple;">'F'</font>)) ? str[0] - <font style="color:purple;">'A' </font>+ 10 : -1; <font style="color:green;">// this happens only if your string is not a correct hexa representation</font>
<font style="color:green;">// do some error checking here...</font>
 
MSB = MSB << 4;
 
ucConvertedNumber = MSB | LSB;

you've got it...

you can nox do :

printf(<font style="color:purple;">"Decimal form     :%d\n"
       "Hexadecimal form :%x\n"</font>,
       ucConvertedNumber,
       ucConvertedNumber);

TOXCCT >>> GEII power

Re: Cleanest way to convert a two character string like "4D" to it's hex-equivalent-number ?

jmkhael22-Apr-04 0:30

jmkhael

22-Apr-04 0:30

long strtol( const char *nptr, char **endptr, int base );

acString

strtol(acString, NULL, 16);

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: Cleanest way to convert a two character string like "4D" to it's hex-equivalent-number ?

ohadp22-Apr-04 0:42

ohadp

22-Apr-04 0:42

this is the function i was looking for Smile | :)

Re: Cleanest way to convert a two character string like "4D" to it's hex-equivalent-number ?

toxcct22-Apr-04 1:02

toxcct

22-Apr-04 1:02

ok for a function, but understand what it does because it isn't a standard function...

TOXCCT >>> GEII power

Re: Cleanest way to convert a two character string like "4D" to it's hex-equivalent-number ?

Prakash Nadar22-Apr-04 1:05

Prakash Nadar

22-Apr-04 1:05

Nice joke.

God is Real, unless declared Integer.

Re: Cleanest way to convert a two character string like "4D" to it's hex-equivalent-number ?

toxcct22-Apr-04 1:39

toxcct

22-Apr-04 1:39

ok, i was thinking of another.
just verified.

TOXCCT >>> GEII power

Client server problem

VBZ21-Apr-04 23:31

VBZ

21-Apr-04 23:31

hi ppl,
I am creating a Client server application using Asyncsockets using MFC.
my application is running well on the local server.
but the problem starts when it's client side is used on other computers on lan
Like
for the first time the client connects to the server every thing goes on smoothly but when the connection closes from the client side the server closes all the connection but on the client side the connection goes to the FIN_WAIT2 and reamins there and no message can be sent from there on so the application halts.
I donn know what to do help me?

Re: Client server problem

ThatsAlok22-Apr-04 4:03

ThatsAlok

22-Apr-04 4:03

ok i think i also faced similar situation when i encounter this problem.
the solution is that you override the function OnClose()
of AsyncSocket of MFC

and In OnClose()
close the socket connectiong socket ok
i think it work Rose | [Rose]

Alok Gupta
visit me at http://alok.stormpages.com

Re: Client server problem

VBZ25-Apr-04 21:16

VBZ

25-Apr-04 21:16

hi alok,
thanks a lot for ur reply,
but eventually i figured out my problem was not related with opening or closing but what i am using is ASyncSockets which are by default NON blocking sockets as a results the connection closes automatically if there is no buffer recieved so i used CSocket class ie a Blocking Socket class as a result untill unless the Buffer is recieved the connection is alive.
thanks a lot again

Can we use the "Source Browser" in VC.net

hottang21-Apr-04 23:22

hottang

21-Apr-04 23:22

This function can be founded in tools menu in VC 6.0, however, I cann't get any idea in VC.net. Thanks. Confused | :confused:

Re: Can we use the "Source Browser" in VC.net

Maxwell Chen21-Apr-04 23:33

Maxwell Chen

21-Apr-04 23:33

I only have Visual Studio .NET 2002 installed.

The similar one is "Object Browser" (Ctrl - Alt - J) found in Visual Studio .NET 2002.

Maxwell Chen

Re: Can we use the "Source Browser" in VC.net

hottang21-Apr-04 23:57

hottang

21-Apr-04 23:57

yes, I have found it. And how can we use the functions such as Call Graph or Caller Graph in Source Browser. Thanks.

Re: Can we use the "Source Browser" in VC.net

Maxwell Chen22-Apr-04 16:15

Maxwell Chen

22-Apr-04 16:15

I dunno. Even the "Browse Information" fails! Dead | X|

Maxwell Chen

Problem with sizing

ykutanoor21-Apr-04 23:01

ykutanoor

21-Apr-04 23:01

Sir,

I am integrating flash with VC++.

I am using Dialog Based App.

I inserted this Active X Control.

I wanted to show both this Control and Dialog Window in a maximized state.

I called ShowWindow(SW_MAXIMIZED) in OnInitDialog.

When I execute the App I get the main window in maximized but the control in that is not at all maximized.
Pls help.
Regards
Chintu

Re: Problem with sizing

Cedric Moonen22-Apr-04 1:13

Cedric Moonen

22-Apr-04 1:13

You'll have to move yourself the control at the size and position you want based on the client coordinates of the parent window.
Take a look at MoveWindow in the MSDN.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.