C / C++ / MFC

Re: How to retrieve complete network path

5-May-03 5:04

Are you talking about the splitpath() function?

Ivano5-May-03 5:10

Ivano

5-May-03 5:10

In Eplorer if you write a path in the toolbar and press ENTER the tree of the explorer go to the folder typed.
I have to do something like that.

Margaria Ivano

Re: How to retrieve complete network path

David Crow5-May-03 5:14

Execution problem with TrackPopupMenu, help !!!

5-May-03 5:14

Ok, maybe SetCurrentDirectory() is what you're after.

flybird5-May-03 4:53

flybird

5-May-03 4:53

here is my code:

In AppView.cpp :
----------------

void CTestApplicationView::OnContextMenu(CWnd* pWnd, CPoint point)
{
CMenu Menu;
// Store popup point, and convert to client coordinates
// for the drawing functions.
Menu.LoadMenu( IDR_CONTEXTMENU );
CMenu* pPopup = Menu.GetSubMenu( 0 );
pPopup->TrackPopupMenu( TPM_LEFTALIGN|TPM_RIGHTBUTTON,
point.x,
point.y,
this );

}

when i right click mouse i got an execution error on
TrackPopupMenu:
--------------

BOOL CMenu::TrackPopupMenu(UINT nFlags, int x, int y,
CWnd* pWnd, LPCRECT lpRect)
{
ASSERT(m_hMenu != NULL); <---------- PROBLEM HERE

_AFX_THREAD_STATE* pThreadState = AfxGetThreadState();
HWND hWndOld = pThreadState->m_hTrackingWindow;
HMENU hMenuOld = pThreadState->m_hTrackingMenu;
pThreadState->m_hTrackingWindow = pWnd->GetSafeHwnd();
pThreadState->m_hTrackingMenu = m_hMenu;
BOOL bOK = ::TrackPopupMenu(m_hMenu, nFlags, x, y, 0,
pThreadState->m_hTrackingWindow, lpRect);
pThreadState->m_hTrackingWindow = hWndOld;
pThreadState->m_hTrackingMenu = hMenuOld;

return bOK;
}

Any ideas, cause I really don't understand why ... Cry | :((

Re: Execution problem with TrackPopupMenu, help !!!

David Crow5-May-03 5:06

Re: Execution problem with TrackPopupMenu, help !!!

5-May-03 5:06

flybird wrote:
Menu.LoadMenu( IDR_CONTEXTMENU );
CMenu* pPopup = Menu.GetSubMenu( 0 );

Why are you not checking the return value of either of these functions?

Hari Krishnan (Noida)5-May-03 21:45

Hari Krishnan (Noida)

5-May-03 21:45

Hi,
do the following things,
1. Declare CMenu Variable as a member variable
2. Load the menu, during initialization.
3. And, try now, it should work.

regards
~Hari~

(Stupid?) vector problem

david2625-May-03 4:35

david262

5-May-03 4:35

Hi everyone.

I'm using the following class:

class Objekt
{
public:

CString get_name();
Objekt(const Objekt & temp);
Objekt();
Objekt(CString name);
virtual ~Objekt();

void add_obj_eventout(CString name, CString typ, CString objekt);
void add_obj_eventin(CString name, CString typ, CString objekt);

std::vector<EventIn> m_obj_eventinVector;

//EventIn/Out are some other classes with just 3 CString values

std::vector<EventOut> m_obj_eventoutVector;

private:

CString m_name;
};

Now there is another vector "std::vector<Objekt> m_objektVector;" that should build an "array" of Objekts. That vector is created in a MFC Dialog class (Instance: m_selekt);
What i'm trying to do now, is to access the m_objektVector from another (the first) MFC Dialog class that calls m_selekt via DoModal.

code:
//there have been added some objekts to m_objektVector
if(m_selekt.DoModal() == IDOK)
{

int x = m_selekt.m_objektVector.size();
for(int lv1=0;lv1<x;lv1++)

{
Objekt temp;
temp = m_selekt.m_objektVector[lv1];
CString soll = temp.get_name(); //works great

if(soll == auswahl) //not important
{

int eventins = temp.m_obj_eventinVector.size();
int eventouts = temp.m_obj_eventoutVector.size();
//Here is the problem eventins/outs stays 0 although there are entries for every Objekt!
/*........*/

Why can i get the correct value when calling get_name but trying to get something from the vectors is impossible?
Is it forbidden to create "multi vectors" or are all entries deleted when i'm creating the temp Objekt?
Maybe there is another possibility to send the data from one dlg to another?
Or is it just some stupid mistake (i'm quite new to visual c++)?

I hope you can understand the problem from my description. I'm trying to figure that out for two days now (tried CArray first - what was a complete desaster).

Thanks in advance for any answers/tips!!!

mfg david

Re: (Stupid?) vector problem

markkuk5-May-03 4:48

markkuk

5-May-03 4:48

Looks like you forgot to write a correctly working assignment operator for class Objekt.

send message from subclass to parent

JensB5-May-03 3:36

5-May-03 3:36

Hi
I've subclassed a CEdit to CMyEdit.
I check in subclass CMyEdit OnChar() if the char. is allowed or not. When it is not allowed, i want to display a message in the label (IDC_LABEL) that i have made in the form. But the problem is, how can i change the windowtext of the label within the subclass? (sending message to parent?)

Anyone knows?

Greetings from another overworked student
Jens

Bartosz Bien5-May-03 3:49

Bartosz Bien

5-May-03 3:49

Use:

LRESULT CMyEdit::NotifyParent(int msg)<br />
{<br />
    NMHDR hdr;<br />
    hdr.code = msg;<br />
    hdr.hwndFrom = m_hWnd;<br />
    hdr.idFrom = GetDlgCtrlID();<br />
<br />
    CWnd *parent = GetParent();<br />
    return pParent ? pParent->SendMessage(WM_NOTIFY, (WPARAM)0, (LPARAM)&hdr) : 0;<br />
}

Where msg is your notification code.
You may then handle the notification in the parent window's OnNotify.

Regards,
BB

JensB5-May-03 4:02

5-May-03 4:02

I don't fully understand how this works

void CMyEdit::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
CString strAllowed = "0123456789ABCDEFGHIJ";

if ( strAllowed.Find(nChar) != -1 )
{
CEdit::OnChar(nChar, nRepCnt, nFlags);
} else
{
NMHDR hdr;
hdr.code = 9; // I would like to change to ERRCODE but that will not compile
hdr.hwndFrom = m_hWnd;
hdr.idFrom = GetDlgCtrlID();
CWnd *pParent = GetParent();
pParent->SendMessage(WM_NOTIFY, (WPARAM)0, (LPARAM)&hdr);
}

this i think sends the message to the parent window's OnNotify

BOOL CKeyXyDlg::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult)
{
AfxMessageBox("onnotify");
return CDialog::OnNotify(wParam, lParam, pResult);
}

and i never see the messagebox Frown | :(

Any mistakes i've made?

Greetings
Jens
}

Bartosz Bien5-May-03 4:13

Bartosz Bien

5-May-03 4:13

I've checked it and it should be working - you may need to Rebuild All. Wink | ;)

In OnNotify, implement as follows:

<br />
    NMHDR *hdr = (NMHDR*)lParam;<br />
    if(hdr->idFrom == IDC_EDIT1 && hdr->code == EN_MYERROR)<br />
	AfxMessageBox("This char is not allowed!");<br />

Regards,
BB

JensB5-May-03 4:33

5-May-03 4:33

ok this works great!
Thanks alot Bartosz.

I'm trying to make something the user can type in like:
..-..-..-..-..-..
and when the user types in the characters the points have to replaced by the char. and cursor need to be repositioned too. Something like the 'IP control' actually but i've just started.
I've seen the '.' & the '-' in a editbox are so little. Can i make those characters bigger so it looks like the IP control?
(http://www.codeguru.com/editctrl/ip_addr_masked_edit.shtml)

Greetings
Jens

Renjith Ramachandran5-May-03 4:29

Renjith Ramachandran

5-May-03 4:29

Another method

in ur derived class add a member function as SetParent(CDialog* pDlg)

and call this method after creating the control object

and with in the control class just send the Mesage to parent Window by using Send Message, U can pass the Char* buffer along with this send message and in ur parent class u just handle the Message properly
(just use ON_MESSAGE(MESS_ID, Routine() in MessageMap)

hope that u can

CodeTheDreams();

JensB5-May-03 20:03

5-May-03 20:03

ok thank you .. you guys have helped me out very good Smile | :)

Greetings
Jens

Hiding Application

Member 2266405-May-03 3:22

Member 226640

5-May-03 3:22

hi,
How to hide my Application from the process list (TaskManager) in Win2000.

Joaquín M López Muñoz5-May-03 3:25

Joaquín M López Muñoz

5-May-03 3:25

(off the top of my head) Deploy your app as a service.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Member 2266405-May-03 3:58

Member 226640

5-May-03 3:58

how to make Application a service

jmkhael5-May-03 4:20

jmkhael

5-May-03 4:20

http://www.codeproject.com/w2k/becomeservice.asp#xx466308xx[^]

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

David Crow5-May-03 4:14

5-May-03 4:14

Forget the service stuff. That's way beyond the scope of what you are after. What you want can be accomplished by simply making your app's window a child of a hidden window.