C / C++ / MFC Discussion Boards

Re: Get Volume Name From Path

Richard Andrew x6428-Feb-11 17:44

Richard Andrew x64

28-Feb-11 17:44

I found it:

GetVolumePathName()

Retrieves the volume mount point where the specified path is mounted.

The difficult we do right away...
...the impossible takes slightly longer.

Re: Get Volume Name From Path

Hans Dietrich28-Feb-11 17:44

Hans Dietrich

28-Feb-11 17:44

_splitpath

Best wishes,
Hans

[Hans Dietrich Software]

Re: Get Volume Name From Path

Niklas L1-Mar-11 0:43

Niklas L

1-Mar-11 0:43

PathStripToRoot()[^] might also be of interest.

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Re: Get Volume Name From Path

Hans Dietrich1-Mar-11 1:23

Hans Dietrich

1-Mar-11 1:23

Wow. Another API I have never heard of. Thumbs Up | :thumbsup:

How do you find this stuff?

Best wishes,
Hans

[Hans Dietrich Software]

Re: Get Volume Name From Path

Niklas L1-Mar-11 1:47

Niklas L

1-Mar-11 1:47

There's a whole set of path handling functions[^]. A lot more than you would ever need... Smile | :)

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MFC command line in VC6.0 - repost

Vaclav_28-Feb-11 4:07

Vaclav_

28-Feb-11 4:07

I am experimenting with different releases of OpenCV and would like to document command line options.
Is there a simple way to see / print all command line options in use in MFC workspace ( Project _ Settings)?
Thanks for reading.
Vaclav

Re: MFC command line in VC6.0 - repost

Hans Dietrich28-Feb-11 4:50

Hans Dietrich

28-Feb-11 4:50

The simplest way is to go to Project | Settings | C/C++ and copy/paste the text box at the bottom of that tab, "Project Options". You could also probably find this info in the project .dsp file.

Best wishes,
Hans

[Hans Dietrich Software]

SOLVED Re: MFC command line in VC6.0 - repost

Vaclav_28-Feb-11 6:00

Vaclav_

28-Feb-11 6:00

Thanks, it is in *.dsp file

How can handle double click event in listctrl of checkbox style?

Le@rner27-Feb-11 22:32

Le@rner

27-Feb-11 22:32

Hi all,

i m using ListCtrl with Checkbox option.

i m popup a message on double click of list item and i want the message not pop up on double click on ckeck box of this item .

please tell me how can i do this.

thanks in advance.

Re: How can handle double click event in listctrl of checkbox style?

Hans Dietrich27-Feb-11 22:51

Hans Dietrich

27-Feb-11 22:51

The solution to this is the NM_DBLCLK notification message; for more info see here: http://msdn.microsoft.com/en-us/library/bb774867%28v=vs.85%29.aspx[^]

Here is a code snippet:

void MyDlg::OnDblClick(NMHDR* pNMHDR, LRESULT* pResult)
{
    LPNMITEMACTIVATE pNMIA = reinterpret_cast<LPNMITEMACTIVATE>(pNMHDR);

    int nItem = -1;
    int nSubItem = -1;

    if (pNMIA)
    {
        nItem = pNMIA->iItem;
        nSubItem = pNMIA->iSubItem;
    }

    if (nItem >= 0 && nSubItem >= 0)
    {
        CString strText = m_List.GetItemText(nItem, nSubItem);
        TRACE(_T("OnDblClick at (%d,%d):  '%s'"), nItem, nSubItem, strText);
    }

    *pResult = 0;
}

The message map entry looks like:

ON_NOTIFY(NM_DBLCLK, IDC_LIST, OnDblClick)

This gives you the sub-item of the click, and from that you can tell whether the checkbox column was clicked.

Best wishes,
Hans

[Hans Dietrich Software]

Re: How can handle double click event in listctrl of checkbox style?

Le@rner27-Feb-11 23:13

Le@rner

27-Feb-11 23:13

i am asking how can skip to pop up the message box on double click on check box in list ctrl.

Re: How can handle double click event in listctrl of checkbox style?

Hans Dietrich27-Feb-11 23:19

Hans Dietrich

27-Feb-11 23:19

Le@rner wrote:
i am asking how can skip to pop up the message box on double click on check box in list ctrl.

And I just told you. Did you even try my code?

Best wishes,
Hans

[Hans Dietrich Software]

Re: How can handle double click event in listctrl of checkbox style?

Le@rner27-Feb-11 23:53

Le@rner

27-Feb-11 23:53

Hans Dietrich wrote:
Le@rner wrote:
i am asking how can skip to pop up the message box on double click on check box in list ctrl.

And I just told you. Did you even try my code?

yes here message popu on double click of checkbox also

Re: How can handle double click event in listctrl of checkbox style?

Niklas L27-Feb-11 23:35

Niklas L

27-Feb-11 23:35

You can look at ptAction in NMITEMACTIVATE.

home

Re: How can handle double click event in listctrl of checkbox style?

Le@rner27-Feb-11 23:55

Le@rner

27-Feb-11 23:55

thanks now i using this and it works.

please check its correct way to do this or not

LPNMITEMACTIVATE pia = (LPNMITEMACTIVATE)pNMHDR;
   CPoint point(pia->ptAction);

   // Select the item the user clicked on.
   UINT uFlags;
   int nItem = m_List.HitTest(point, &uFlags);

   if (uFlags!=8)
   {
		AfxMessageBox("Double Click");
   }

Re: How can handle double click event in listctrl of checkbox style?

Richard MacCutchan28-Feb-11 0:55

Richard MacCutchan

28-Feb-11 0:55

Why not just use the item and subitem fields to discover whether it's the checkbox column as Hans explained in his initial answer?

I must get a clever new signature for 2011.

Re: How can handle double click event in listctrl of checkbox style?

Cool_Dev28-Feb-11 1:00

Cool_Dev

28-Feb-11 1:00

For that, is there any separate column for check boxes in list control with LVS_EX_CHECKBOXES style? Please correct me if i am wrong.

Re: How can handle double click event in listctrl of checkbox style?

Richard MacCutchan28-Feb-11 1:12

Richard MacCutchan

28-Feb-11 1:12

I'm not sure, I (foolishly) assumed the checkbox could be added to any column. My bad Confused | :confused:

I must get a clever new signature for 2011.

Re: How can handle double click event in listctrl of checkbox style?

Cool_Dev28-Feb-11 1:59

Cool_Dev

28-Feb-11 1:59

Its ok. No separate column for check box, assuming that the questioner is using List control with LVS_EX_CHECKBOXES style. Smile | :)

Re: How can handle double click event in listctrl of checkbox style?

Richard MacCutchan28-Feb-11 6:00

Richard MacCutchan

28-Feb-11 6:00

Thanks, obviously a feature I need to check out at the earliest opportunity.

I must get a clever new signature for 2011.

Re: How can handle double click event in listctrl of checkbox style? [modified]

Cool_Dev27-Feb-11 23:57

Cool_Dev

27-Feb-11 23:57

Use CListCtrl::GetItemRect and ptAction member of LPNMITEMACTIVATE structure.

void MyDlg::OnDblClick(NMHDR* pNMHDR, LRESULT* pResult)
{
    LPNMITEMACTIVATE pNMIA = reinterpret_cast<LPNMITEMACTIVATE>(pNMHDR);

    int nItem = -1;
    int nSubItem = -1;

    if (pNMIA)
    {
        nItem = pNMIA->iItem;
        nSubItem = pNMIA->iSubItem;
    }

    if (nItem >= 0 && nSubItem >= 0)
    {
        CRect rect;
	m_list.GetItemRect(nItem, &rect, LVIR_LABEL );
	if(pNMIA->ptAction.x < rect.left) // For left aligned check box.
	{
	  MessageBox("Double Clicked on CheckBox");
	}
    }

    *pResult = 0;
}

Another alternative is CListCtrl::HitTest() function.

modified on Monday, February 28, 2011 6:56 AM

Re: How can handle double click event in listctrl of checkbox style?

Le@rner28-Feb-11 0:20

Le@rner

28-Feb-11 0:20

thanks

GetComboBoxInfo implementation

mesajflaviu27-Feb-11 20:05

mesajflaviu

27-Feb-11 20:05

Hi everyone ! Can you give an help hand , please ? I need an source code of GetComboBoxInfo function from here[^]

Why ? Because I use that function in a project that I need compile on Windows NT SP6 , and there I don't have this function ... thank you very much .

Re: GetComboBoxInfo implementation

Andrew Brock27-Feb-11 21:28

Andrew Brock

27-Feb-11 21:28

Unless someone else has something to say, you're out of luck.

Interactions like this with controls are all done through messages, like SetWindowText() is an alias for PostMessage(WM_SETTEXT), and it appears that GetComboBoxInfo() is an alias for CB_GETCOMBOBOXINFO[^], which as that MSDN page says is only implemented on Windows XP and later.

If this query message is not supported by the control on your platform then you are going to have a hard time getting the internal state.

Not sure if it will work, and if it will it is probably not a good idea, but you might be able to update the common control library from something like Windows XP, which should have all features of NT, plus more by copying and pasting.

Re: GetComboBoxInfo implementation

mesajflaviu27-Feb-11 22:27

mesajflaviu

27-Feb-11 22:27

Then perhaps you give me an alternative for this issue :
I need to have ComboBoxInfo.hwndList handle for the follow function :

void CComboBoxExt::PreSubclassWindow() 
{
	// TODO: Add your specialized code here and/or call the base class

	CComboBox::PreSubclassWindow();

	COMBOBOXINFO ComboBoxInfo;
	ComboBoxInfo.cbSize = sizeof(ComboBoxInfo);
	GetComboBoxInfo(m_hWnd,&ComboBoxInfo);

//	m_Edit.SubclassWindow(ComboBoxInfo.hwndEdit);
	m_List.SubclassWindow(ComboBoxInfo.hwndList);
	SetProp(ComboBoxInfo.hwndList, WndPropertyComboBoxEx, this);
	fNextListProc = (WNDPROC)SetWindowLong(ComboBoxInfo.hwndList, GWL_WNDPROC, (LONG)WinProcForList);    //    <- here I need ComboBoxInfo.hwndList
}

and implementation of WinProcForList is here :

LRESULT CComboBoxExt::WinProcForList(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	CComboBoxExt* pInstance = (CComboBoxExt*)GetProp(hWnd,WndPropertyComboBoxEx);
	ASSERT(pInstance != NULL);

	if(msg == LB_FINDSTRING)
	{
		TRACE("Replacing LB_FINDSTRING with LB_FINDSTRINGEXACT when looking for: \"%s\"\n", (LPCTSTR)lParam);
		msg = LB_FINDSTRINGEXACT;
	}

	return CallWindowProc(pInstance->fNextListProc, hWnd, msg, wParam, lParam);
}

any help or hint I will very appreciated !

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