Preselecting a Popup menu item - C / C++ / MFC Discussion Boards

25-Jun-02 5:37

HEY
i heard that AfxBeginThread() has some problems related with the releasing of memory when u terminate the thread.(releasing the kernal thread object).i think that may be the reason...but
_beginthreadex() is safe and smart among the thread functions...no probs even if u restart 10 ^300000 times..!!haha

Renjith-The CPian.

Re: AfxBeginThread failed create thread

25-Jun-02 13:33

thank you for your answer!
but, would you give me some idea about _beginthreadex()?
thanks,
jim

Re: AfxBeginThread failed create thread

25-Jun-02 15:22

Surely..

_beginthreaex(void* Security,unsigned int stacksize,unsigned __stdcall*startAddressof ur thread Function,void *argumentList,unsigned initflag,unsigned* threadID);

that function will returnes the ThreadHandle...

Renjith-The CPian.

Re: AfxBeginThread failed create thread

zecodela25-Jun-02 17:29

zecodela

25-Jun-02 17:29

hi,
i am using MFC. it seems that _beginthreadex() can't be use in MFC program...
do you have any idea?
thanks,
jim

Re: AfxBeginThread failed create thread

Rage25-Jun-02 5:42

Rage

25-Jun-02 5:42

First, this kind of questions can simply _not_ be answered correctly without code sample.
Secondly, this kind of questions may even _not_ be answered correctly even with a code sample...

Anyway, try to look at the article :

http://www.codeproject.com/debug/postmortemdebug_standalone1.asp

~RaGE();

DocTemplate Stuff

24-Jun-02 15:33

I'm creating an MDI application. However, I wanna create the Doc/View/Frame on my own when the user has chosen an menu item (no in File New).

I coded like below, but I don't know how can I associate with a view ?

Besides, who'll manage the deletion of the Document ? Will the document be deleted when the user clicked the "X" button in the frame window ? I don't want the document be deleted as it will associate with another frame/view too, and I've to cache it.

<br />
CMultiDocTemplate *pTemplate=theApp.m_pScreenDocTemplate;<br />
		<br />
CShirleyScreenDoc* pdoc = (CShirleyScreenDoc *) pTemplate->CreateNewDocument();<br />
<br />
CShirleyScreenFrame *pNewFrame = (CShirleyScreenFrame *) pTemplate->CreateNewFrame(pdoc, NULL);<br />
<br />
if(pNewFrame)<br />
	pTemplate->initialUpdateFrame(pNewFrame, pdoc);<br />

Thanks ^^

Re: DocTemplate Stuff

Roger Allen25-Jun-02 5:48

Roger Allen

25-Jun-02 5:48

As you need your document to be static I would create a document structure/class outside of a regular MFC type document that will store the cached data. You can then use

CMyDoc *pDoc = pTemplate->OpenDocument(NULL) ;
pDoc->m_pDataPointer = &CachedObject ;

which will create a normal document view/frame and attach a pointer to this global cached object. As long as you just set the pointer to NULL in the MFC document destructor and dont delete it, everything should work as you want.

Roger Allen
Sonork 100.10016

If I had a quote, it would be a very good one.

Preselecting a Popup menu item

Neville Franks24-Jun-02 15:12

Neville Franks

24-Jun-02 15:12

Does anyone know of a way to select a menu item for a popup menu which uses TrackPopupMenu(). ie. I want menu item 2 selected when the menu pops up, so pressing return will select it.

I've tried;

for( int iPos = 0 ; iPos < 2 ; ++iPos )
    ::PostMessage( (HWND)pCurMenu->GetSafeHmenu(), WM_KEYDOWN, VK_DOWN, 0 );

item_id = pCurMenu->TrackPopupMenu( TPM_NONOTIFY | TPM_RETURNCMD | bMenuOptsExtra,
                                    pt.x, pt.y, Thread_pCWnd(), NULL
                                  );

but it doesn't work. Any other ideas?

Neville Franks, Author of ED for Windows. www.getsoft.com

Re: Preselecting a Popup menu item

PJ Arends24-Jun-02 16:39

PJ Arends

24-Jun-02 16:39

Don't know if it will work, but have you looked at ::SetMenuItemInfo()?

---
CPUA 0x5041

Sonork 100.11743 Chicken Little

Within you lies the power for good - Use it!

Re: Preselecting a Popup menu item

Neville Franks24-Jun-02 16:50

Neville Franks

24-Jun-02 16:50

PJ Arends wrote:
Don't know if it will work, but have you looked at ::SetMenuItemInfo()?

Thanks. Yes I have but there isn't anything there which helps. In fact there is nothing in the entire Menu API which does this that I can see, which is why I'm stuck.

Neville Franks, Author of ED for Windows. www.getsoft.com

Re: Preselecting a Popup menu item

Roger Allen25-Jun-02 5:50

Roger Allen

25-Jun-02 5:50

Call SetDefaultItem() on the menu popup before you track it is a possibility.

Roger Allen
Sonork 100.10016

If I had a quote, it would be a very good one.

Re: Preselecting a Popup menu item

Ravi Bhavnani25-Jun-02 7:18

Ravi Bhavnani

25-Jun-02 7:18

I think that displays the item in bold, but doesn't highlight it.

/ravi

Let's put "civil" back into "civilization"
http://www.ravib.com
ravib@ravib.com

Re: Preselecting a Popup menu item

Neville Franks25-Jun-02 10:29

Neville Franks

25-Jun-02 10:29

Ravi Bhavnani wrote:
I think that displays the item in bold, but doesn't highlight it.

Yes that's right. It is difficult to get any usefull info on SetDefaultItem(). Best I've come up with is it is used with drag and drop. It doesn't help me though. Thanks anywayz.

Neville Franks, Author of ED for Windows. www.getsoft.com

Re: Preselecting a Popup menu item

Ravi Bhavnani25-Jun-02 10:39

Ravi Bhavnani

25-Jun-02 10:39

Neville, me thinks subclassing CPopupMenu should easily give you what you want.

/ravi

Let's put "civil" back into "civilization"
http://www.ravib.com
ravib@ravib.com

Re: Preselecting a Popup menu item

Neville Franks25-Jun-02 11:11

Neville Franks

25-Jun-02 11:11

Hi Ravi, I'm actually using Bruno's excellent CNewMenu code. This does subclass the menu but a) I am a little reluctant to start mucking around in the subclass code and b) I can't work out what I would do here anyway. Any suggestions?

Neville Franks, Author of ED for Windows. www.getsoft.com

Re: Preselecting a Popup menu item

Ravi Bhavnani25-Jun-02 11:29

Ravi Bhavnani

25-Jun-02 11:29

Hi Neville,

I haven't looked at Bruno's article, but off the top of my head I'd do this:

Store the preselected id in a member variable.
Override the handler for "mouse on new menu item" (not WM_MENUSELECT) and clear the member variable.
In the OnDrawItem() override, draw the item as selected if its id matches the member variable's value (if non-zero). If the member variable is zero (i.e. has been cleared), just call the base class OnDrawItem().

I think the tricky part is handling the message "mouse on new menu item". I hope these thoughts end up being helpful and not a waste of time!

/ravi

Let's put "civil" back into "civilization"
http://www.ravib.com
ravib@ravib.com

Re: Preselecting a Popup menu item

Neville Franks25-Jun-02 11:58

Neville Franks

25-Jun-02 11:58

Hi Ravi,
Thanks for that - I'll ponder on it.

For all my years of Windows development I've always been frustrated by the menu handling code, but this isn't the time nor the place for that. Smile | :)

Neville Franks, Author of ED for Windows. www.getsoft.com

smiley

24-Jun-02 14:28

hello i just want these emoticons

saad ali

Re: smiley

Nish Nishant24-Jun-02 15:13

Nish Nishant

24-Jun-02 15:13

saad ali wrote:
hello i just want these emoticons

What do you mean, you want them? If you mean you want them on your hard disk, just right click and take save-as. If you mean you want them for your web site, you'll probably need Chris M's permission.

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Re: smiley

Christian Graus24-Jun-02 17:44

Christian Graus

24-Jun-02 17:44

No, he WANTS them. BAD. If you're handling a used emoticon in this forum, be careful, because you do not know where it has been.

Christian

I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002

Half the reason people switch away from VB is to find out what actually goes on.. and then like me they find out that they weren't quite as good as they thought - they've been nannied. - Alex, 13 June 2002

Getting Data from a Dialog in a an MDI Document

Matt Fenwick24-Jun-02 11:22

Matt Fenwick

24-Jun-02 11:22

This is going to sound like a stupid question, but I can't find anything on how to do it. I have a text editor MDI that calls up a dialog box. I have the information saved as a CString in the dialog box, but now how do I get it from there and displayed in my document?

I've looked at the MSDN CD, and also this site, but I can't seem to find a step by step tutorial on how to do it. Can anyone help me to do this simple task, or at least point me in the right direction to find out?

Thanks
Matt Fenwick

Re: Getting Data from a Dialog in a an MDI Document

Donald Blachly24-Jun-02 12:26

Donald Blachly

24-Jun-02 12:26

I am just teaching myself MFC so I hope I don't steer you in the wrong direction.

Here is a tutorial I did tried this weekend. It should help. Note, there are a few errors but you should be able to get through it.

http://www.codeproject.com/dialog/dialogapptute2.asp

The tutorial takes data from a various controls and puts it in a list box and then to a dialog box, but the principle should be the same.

You can use the class wizard to make a member variable (I think you will use a category of "control") to hold the data you want moved to the document.

When you come to a fork in the road, take it! Y. Berra

Re: Getting Data from a Dialog in a an MDI Document

Joaquín M López Muñoz24-Jun-02 12:34

Joaquín M López Muñoz

24-Jun-02 12:34

Well, if your dialog is modal (i.e. you launch it with DoModal,) things are simple. You already mapped the string to some member variable of the dialog (let's say it's called m_str.) Then, after DoModal, the value is just there for you to use:

void CYourView::OnSomeParticularEvent()
{
  CYourDlg dlg;
  if(dlg.DoModal()==IDOK){
    // use dlg.m_str (for instance, to store it in your
    // CDocument-derived class.)
  }
}

I hope I made myself clear enough. Good luck with your project.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

ctrl+alt+del

slah24-Jun-02 10:18

slah

24-Jun-02 10:18

hi i want to ignore this event in my application. is there any way out.

Re: ctrl+alt+del

Scott H. Settlemier27-Jun-02 9:48

Scott H. Settlemier

27-Jun-02 9:48

Use the SystemParametersInfo function's
undocumented SPI_SETSCREENSAVERRUNNING

UINT _Junk;

// turn off ctl-alt-del
SystemParametersInfo(SPI_SETSCREENSAVERRUNNING,1,&_Junk,0);

// ... do stuff? like what?

// turn on ctl-alt-del
SystemParametersInfo(SPI_SETSCREENSAVERRUNNING,0,&_Junk,0);

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