Re: Zero copy on windows - C / C++ / MFC Discussion Boards

how to load bitmap in picture box?

puppya19-Oct-08 23:42

puppya

19-Oct-08 23:42

hi,
how to load bitmap in picture box?
thanks in advance

How can I send an eMail (using smtp) to yahoo "free mail services"?

Joseph Marzbani19-Oct-08 23:10

Joseph Marzbani

19-Oct-08 23:10

The most popular "free" mail providers over the Internet are yahoo, hotmail, google and newly "live". But unfortunately I can't send them my email messages using smtp, because I don't know the address of their smtp servers. Can any one introduce me some of them that work with smtp clients like "telnet" or something (I mean those which don't need "webmail" pages over the Internet to send eMail to them)?

Thank you masters!

Re: How can I send an eMail (using smtp) to yahoo "free mail services"?

Roger Stoltz19-Oct-08 23:13

Roger Stoltz

19-Oct-08 23:13

Have a look at Nish's article here[^].

"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown

CTreeCtrl Problem

Dhiraj kumar Saini19-Oct-08 23:09

Dhiraj kumar Saini

19-Oct-08 23:09

I am using a CTreeCtrl control in my application.
It has a root with all other item as its child. Now what I want is that Whenver a child item is clicked its value should be printed in a edit box.

For this I am using
ON_NOTIFY(NM_CLICK, IDC_TREE_KEN_PUSH,OnSelchangedTreectrl)
event handler and the code is as follows:

void CChatDlg::OnSelchangedTreectrl(NMHDR* pNMHDR, LRESULT* pResult) 
   {
         NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
         // TODO: Add your control notification handler code here
		 HTREEITEM hItem = m_ctrlKenPush.GetSelectedItem();
         CString strItemText = m_ctrlKenPush.GetItemText(hItem);
		 if(strItemText!=_T("General"))
			SetDlgItemText(IDC_EDIT,strItemText);
         *pResult = 0;
   }

But the problem is that when i click a child node its parent values gets printed .
Please tell whats the problem.

Zero copy on windows

vikramlinux19-Oct-08 22:48

vikramlinux

19-Oct-08 22:48

Hi All,
Is there any facility/API available on windows which will give me file copying functionality where number of copy operations involved are minimal?

Usually kernel mode APIs and DMA stuff creates few number of redudent buffer copy operations. Can we avoid it?

On unix they have such functionality
http://www.linuxjournal.com/article/6345[^]

Re: Zero copy on windows

Jose David Pujo20-Oct-08 0:30

Jose David Pujo

20-Oct-08 0:30

I'm almost sure that there isn't any thing like that in Windows API.

The standard functions: CopyFile, CopyFileEx, MoveFile don't work as you want:

http://msdn.microsoft.com/en-us/library/aa363851(VS.85).aspx[^]

PD: If you find such functionallity please post it. Laugh | :laugh:

Re: Zero copy on windows

Jose David Pujo20-Oct-08 0:59

Jose David Pujo

20-Oct-08 0:59

Hi again, I remembered a way to copy files across network:

TransmitFile Function

The TransmitFile function transmits file data over a connected socket handle. This function uses the operating system's cache manager to retrieve the file data, and provides high-performance file data transfer over sockets.

Note This function is a Microsoft-specific extension to the Windows Sockets specification.

http://msdn.microsoft.com/en-us/library/ms740565(VS.85).aspx[^]

Hope this one works...

Re: Zero copy on windows

vikramlinux20-Oct-08 2:00

vikramlinux

20-Oct-08 2:00

Hey,
That is really a good information. Thanks.

how to draw a line on a dialog based application

puppya19-Oct-08 21:13

puppya

19-Oct-08 21:13

hi,
how to draw line and a small circle below that line on a dialog based application? i want to display 8 such lines on a dialog.
thanks in advance Smile | :)

Re: how to draw a line on a dialog based application

CPallini19-Oct-08 21:23

CPallini

19-Oct-08 21:23

Handle the WM_PAINT message.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: how to draw a line on a dialog based application

Cedric Moonen19-Oct-08 21:26

Cedric Moonen

19-Oct-08 21:26

Are you sure you want to draw directly on the dialog ? In general, it doesn't make a lot of sense. A better approach would be to create a custom control and delegate the work to it.
What are you trying to achieve exactly ?

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: how to draw a line on a dialog based application

puppya19-Oct-08 21:34

puppya

19-Oct-08 21:34

hi Cedric,
thx for ur reply.
i want to display a line(straight line not dotted as shown below) and 1 small circle as shown below:
|
|
|
O

Re: how to draw a line on a dialog based application

Cedric Moonen19-Oct-08 21:54

Cedric Moonen

19-Oct-08 21:54

Ok but this doesn't answer my question. Do you really need to draw on the dialog itself rather than using a custom control ? Here[^] is an article about creating custom controls. It is much cleaner than drawing directly on the dialog.

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Problem of COleDateTimeCtrl;

Le@rner19-Oct-08 21:08

Le@rner

19-Oct-08 21:08

Hi all,

I m using two COleDateTimeCtrl,i have some records i want to filter these records according to date.

COleDateTime from_date;
COleDateTime to_date;
COleDateTime Record_date;

for example: i want to filter records from 15/oct/2008 to today.

today record is present.

i m using COleDateTime operators.

filter like this;

if(from_date>=Record_date && to_date<=Record_date)
{
AfxMessageBox("Record Found");
}
its not working correct for today record.

if record date is greater than today date,than its working fine.

please tell me what can i do?

thanks in advance.

IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH

Re: Problem of COleDateTimeCtrl;

Cedric Moonen19-Oct-08 21:17

Cedric Moonen

19-Oct-08 21:17

"_$h@nky_" wrote:
from_date>=Record_date

Your record date should be smaller than the 'from_date' (so earlier than the from_date) ?

"_$h@nky_" wrote:
to_date<=Record_date

Your record should be bigger than the 'to_date' (so, after the to_date) ?

Think a bit about your checks.

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

Re: Problem of COleDateTimeCtrl;

Le@rner19-Oct-08 21:25

Le@rner

19-Oct-08 21:25

thnks

IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH

Re: Problem of COleDateTimeCtrl;

CPallini19-Oct-08 21:22

CPallini

19-Oct-08 21:22

"_$h@nky_" wrote:
if(from_date>=Record_date && to_date<=Record_date)

Funny.

How to remove Maximize button and its box from main application window?

AnayKulkarni19-Oct-08 21:07

AnayKulkarni

19-Oct-08 21:07

Hello to all,
I have created one MDI application and in this application I want to remove maximize button of main application window with its box also,means I want to keep only minimize and close button there.I wrote following code in CMainFrame::PreCreateWindow() function,

BOOL CMainFrame::PreCreateWindow()
{
if( !CMDIFrameWnd::PreCreateWindow(cs) )
return FALSE;
// TODO: Modify the Window class or styles here by modifying
// the CREATESTRUCT cs

cs.style = WS_OVERLAPPED | WS_CAPTION | FWS_ADDTOTITLE
| WS_THICKFRAME | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_MAXIMIZE;

cs.style &= ~WS_MAXIMIZEBOX;

return CMDIFrameWnd::PreCreateWindow(cs);
}

But the problem is that it is not removing maximize button completly,it is only disabling maximize button there, though now I can not operate maximize button but I can see maximize button and its box there which is disabled.I want to remove that box and maximize button completly,can anyone help me how to do it?

Thanks and Regards,

Anay

Re: How to remove Maximize button and its box from main application window?

CPallini19-Oct-08 22:25

CPallini

19-Oct-08 22:25

AFAIK you cannot do that. MAXIMIZE & MINIMIZE buttons are a 'both or none' option.

Re: How to remove Maximize button and its box from main application window?

David Crow20-Oct-08 3:03

David Crow

20-Oct-08 3:03

AnayKulkarni wrote:
cs.style = WS_OVERLAPPED | WS_CAPTION | FWS_ADDTOTITLE
| WS_THICKFRAME | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_MAXIMIZE;

cs.style &= ~WS_MAXIMIZEBOX;

Why are you adding the WS_MAXIMIZEBOX style and then immediately deleting it?

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: How to remove Maximize button and its box from main application window?

Asmita Jadhav9-Dec-08 23:15

Asmita Jadhav

9-Dec-08 23:15

Try following Smile | :)

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
cs.style &= ~(WS_MINIMIZEBOX|WS_MAXIMIZEBOX);
return CFrameWnd::PreCreateWindow(cs);
}

CFrameWnd created in dll, child dialogs created in console. How?

FloatingMarc19-Oct-08 20:30

FloatingMarc

19-Oct-08 20:30

Hello,

I made a dll that exports several functions, 2 of them are:

-dllCallCreateWindow
-dllCallHandleMessages

My console application calls above two functions. Now, in my console application, I want to be able to attach child dialogs to my CFrameWnd. How can I do that?

The idea is to have my dll creating a CFrameWnd and running with a default behaviour, but if the user wants to customize the CFrameWnd, he should be able to add child dialogs created by himself in the console application.

I can create dialogs in the console application, but I cannot specify the parent window (If I use the CWnd object returned by the dllCallCreateWindow, the application crashes).

Any help is greatly appreciated Smile | :)

system() command in C++

AnithaSubramani19-Oct-08 20:01

AnithaSubramani

19-Oct-08 20:01

Hi All,

I would like to know about the system() command in C++. pls help me....

Thanks and Regards,

Anitha

Re: system() command in C++

Rajesh R Subramanian19-Oct-08 20:12

Rajesh R Subramanian

19-Oct-08 20:12

system()? For once, it's a nasty thing, which must be avoided. If you're calling it for some reason, there's most probably some other better way.

Say me, what more would you like to know about system() command?

It is a crappy thing, but it's life -^ Carlo Pallini

Re: system() command in C++

AnithaSubramani19-Oct-08 20:16

AnithaSubramani

19-Oct-08 20:16

hi,

I need to access Java Servlet ("http://192.197.66.99/sample/checkName") in C++.

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