C / C++ / MFC

9-Jul-08 19:17

Hi all,

How can use enter key on ListCtrl.

I m using NM_RETURN but its not working, i m also check NM_KEYDOWN.

But problem is not shortout.

I want on which row of list cotrol the user pressed the enter key then the purticular relevant Column or row information get from listctrol.

How can i do this please help me for this.

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

fantasy12159-Jul-08 22:43

fantasy1215

9-Jul-08 22:43

I think you should first derive a class called CMyListCtrl from CListCtrl.

from the menu [Insert]->[Class], Create your CMyListCtrl.
then open the MyListCtrl.cpp file, press CTRL+W to show the ClassWizard.
In the [Message Maps] tab, you choose the NM_RETURN, to add a function to deal with the message that the user press the ENTER key in the ListCtrl.

then in your Dlg class substitute CListCtrl with CMyListCtrl.
Hope I express my mind. And Hope it works.

Le@rner9-Jul-08 23:03

9-Jul-08 23:03

Please tell me with example.

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

Le@rner10-Jul-08 18:12

10-Jul-08 18:12

LPNMLVKEYDOWN pLVKeyDow = reinterpret_cast<LPNMLVKEYDOWN>(pNMHDR);
NMLVKEYDOWN* nmkd = (NMLVKEYDOWN*)pNMHDR;

switch(nmkd->wVKey)
{
case VK_SPACE:

int nIndex= GetNextItem(-1, LVNI_SELECTED);
CString strItem = GetItemText(nIndex, 0);
AfxMessageBox(strItem );
}

*pResult = 0;

i m using thisfor keydown ,i m using key space if i m using VK_RETURN in place of VK_SPACE than its not working.(Means the message box not show)

and in case of VK_SPACE its working but after this Unhandeled exeception occur the message of exeception is "Unhandled exception at 0x5d0f0892 in Test.exe: 0xC0000094: Integer division by zero."

Please help me for this.

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

fantasy121525-Jul-08 15:08

fantasy1215

25-Jul-08 15:08

Do be sorry for my first reply, I've tried my first code, it doesn't work at all, sorry.
I can't see which message do you handle, But you do can ovrride the PreTranslateMessage method to achive your goal.

BOOL CListCtrlEnterKeyDlg::PreTranslateMessage(MSG* pMsg) 
{
	switch(pMsg->message) {
	case WM_KEYDOWN:
		if (VK_RETURN == (INT)pMsg->wParam && ::GetFocus() == m_ctlList.GetSafeHwnd())
		{
			int iSelMask = -1;
			iSelMask = m_ctlList.GetSelectionMark();//<font color="blue">m_ctlList is a member of CListCtrlEnterKeyDlg, declared as 'CListCtrl m_ctlList'.</font>
			if (iSelMask != -1)
			{
				LVITEM lvi = {0};
				lvi.iItem = iSelMask;
				lvi.iSubItem = 0;
				lvi.mask = LVIF_TEXT;
				TCHAR szBuf[50] = {0};
				lvi.pszText = szBuf;
				lvi.cchTextMax = 50;
				VERIFY( m_ctlList.GetItem(&lvi) );
				::AfxMessageBox(szBuf);//<font color="blue">MessageBox to show the content in the line selected in the listctrl.</font>
			}
		}
		return TRUE;//<font color="blue">Do return TRUE, you can substitute with break to see the difference.^_^</font>
	default:
		break;
	}
	
	BOOL bRet = CDialog::PreTranslateMessage(pMsg);
	return bRet;
}

I hope this time everything will go fine.^_^

Le@rner25-Jul-08 21:58

How can I handle the 'Apply' button click individually for each property page ?

25-Jul-08 21:58

Thanks it really helps me.

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

SherTeks9-Jul-08 18:58

SherTeks

9-Jul-08 18:58

I have two property pages incorporated in a property sheet.

Property page 1 has a edit control and property page 2 has
a simple push button.

I have overridden the OnApply virtual function for both
the property pages.

When the property sheet is shown, I enable the 'Apply'
button by handling EN_cHANGE notification of the edit
control for Property page 1. On clicking the 'Apply'
button, I show a message defined in overridden OnApply ()
of Property Page 1 and disable the 'Apply' button by
SetModified(FALSE).

Then, I go to Property Page 2 tab and click on the button
on it to enable the 'Apply' button.Now, I click on the 'Apply'
button expecting a message defined in the overridden OnApply()
of Property page 2.

But, I get the message defined in Property Page 1 first and then
get the message in Property page 2.

To summarize, On clicking the 'Apply' button while the
Property page 2 is active, my control is going into the
OnApply() of Property page 1 and then comes into the OnApply()
of Property page 2.

Why is this happening ? Is this the expected behavior ?

Thanks in advance.

Re: How can I handle the 'Apply' button click individually for each property page ?

Iain Clarke, Warrior Programmer9-Jul-08 23:55

Iain Clarke, Warrior Programmer

9-Jul-08 23:55

SherTeks wrote:
Why is this happening ? Is this the expected behavior ?

This is perfectly fine. The Apply button is on the property sheet, not any individual page.

To borrow a phrase, "what would happen if it only did Apply to the current page?". It's very easy to imagine how things would break down.

If you *really* only wanted it to apply to an individual setting on a page, put a button next to that setting, rather than rely on OnApply. Or you could modify all your OnApply's to check if they're the current page. That's less hard that in sounds - you could have each page inherit from a class inheriting from CPropertyPage called

CMyPropertyPageThatBreaksUserExpectations.

(OK, my opinion is subtly encoded in the name).

I hope this helped,

Iain.

LsaEnumerateAccountRights

vineeshV9-Jul-08 18:58

vineeshV

9-Jul-08 18:58

can any body give me an example code for how to use the function
LsaEnumerateAccountRights() ..

vineesh

Re: LsaEnumerateAccountRights

Iain Clarke, Warrior Programmer10-Jul-08 0:01

Iain Clarke, Warrior Programmer

10-Jul-08 0:01

I've just looked on MSDN for the command, and it looks fairly cleanly documented.
http://msdn.microsoft.com/en-us/library/ms721790(VS.85).aspx[^]

You pass it a couple of bits of information, it returns information which you tidy up with LsAFreeMemory.

The hard bits would be generating the SID value, and the Policy object. But if you click on the link, it gives you a nice big example on how to get it.

The below link goes to a page called "Translating between Names and SIDs", taken from the contents of the left of the MSDN site.
http://msdn.microsoft.com/en-us/library/ms722463(VS.85).aspx[^]

I hoped that helped you on your way,

Iain.

Plz sir... ^CPallini ^CPallini abuz drugz, plz plz help urgent.

unicode to mbcs problem [Solved]

followait9-Jul-08 18:18

9-Jul-08 18:18

convert this way:

WideCharToMultiByte(CP_UTF8,0,pBuf,len,pBuf_MBCS,n,NULL,NULL);
ar.Write(pBuf_MBCS,n);
ar.Close;

It seems all right until I edit the file , and save it again.
The file will be preceded by 3 bytes ahead:
EF BB BF

How to solve it?
Thanks.

system

modified on Thursday, July 10, 2008 1:26 AM

Saurabh.Garg9-Jul-08 18:22

Saurabh.Garg

9-Jul-08 18:22

I am sorry what is the problem? Edit what file and using which editor? If some editor is not saving properly then how is that a programming question?

-Saurabh

followait9-Jul-08 19:03

9-Jul-08 19:03

edit the saved file using notepad.exe shipped with windows xp (sp3)

system

Stephen Hewitt9-Jul-08 18:42

Stephen Hewitt

9-Jul-08 18:42

That's the Unicode[^] Byte Order Mask[^] which the editor is inserting. I suggest you make your software handle it.

Steve

followait9-Jul-08 19:26

9-Jul-08 19:26

Helpful, thanks.

I choosed to use CP_ACP instead of CP_UTF8, no preceeding will be added automatically, well enough. Smile | :)

system

Stephen Hewitt9-Jul-08 19:29

Stephen Hewitt

9-Jul-08 19:29

followait wrote:
I choosed to use CP_ACP instead of CP_UTF8, no preceeding will be added automatically, well enough. [Smile]

The text editor is adding them, not Windows.

Steve

followait9-Jul-08 20:09

9-Jul-08 20:09

notepad.exe in windows xp sp3 will add the preceding if windows thinks there is needs (eg. contains UTF-8 encode characters).

system

Problem of Print Preview.

Stephen Hewitt9-Jul-08 20:11

Stephen Hewitt

9-Jul-08 20:11

I that a question? If so I believe the answer is yes.

Steve

Le@rner9-Jul-08 18:13