Help! ON_UPDATE_COMMAND_UI Not called prior to menu display - C / C++ / MFC Discussion Boards

Mel Feik22-Oct-02 18:28

22-Oct-02 18:28

Anyone willing to tell me how to restore the unicode build option in the active confiuration for VS6? Hoping it will be quicker to ask here then go back to the office and get my books.
Thanks
-Mel

---------------------------------------------

Be good! But if you can't be good, at least be good at it and try not to get any on ya!

-mjf

Re: lost unicode...

jmkhael23-Oct-02 2:04

jmkhael

23-Oct-02 2:04

Menu Build -> Set Active configuration -> Unicode

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: lost unicode... Still

Mel Feik23-Oct-02 3:17

Mel Feik

23-Oct-02 3:17

That was I had thought I would need to do when I removed it from the build on the project I needed from. However, the only options I have to choose from in the Build-> Set Active Configuration are Win32-Release and Win32 Debug. Any idea how to get that (the unicode build) option back into the Active configuration? I have also looked for it in
Build->Configurations... but did not find it there to be added.
-Mel

---------------------------------------------

Be good! But if you can't be good, at least be good at it and try not to get any on ya!

-mjf

View Print Preview

act_x22-Oct-02 17:59

act_x

22-Oct-02 17:59

I have an MDI application with 2 views . One is the default one created by AppWizard (which is a FormView ) and the other one was which I added to the framework ( A CtreeVIew) .

I am able to get a print preview for the First View but not for the Second View . Why ?

What should i be doing to get a print preview for the other view too ?

Some insight into this would be appreciated .

Re: View Print Preview

Roger Allen23-Oct-02 1:07

Roger Allen

23-Oct-02 1:07

When you select print preview/print from the file menu, the command gets routed through to the active view. To get the print/preview working for your 2nd view, you need to also route the calls to OnBeginPrinting(), OnEndPrinting(), OnPrint() and OnPrepareDC() through to your 2nd view.

CDocument *pDoc = GetDocument() ;
POSITION pos = pDoc->GetFirstViewPosition() ;
CView *pView = pDoc->GetNextView(pos) ;
if (pView->IsKindOf(RUNTIME_CLASS(CTreeView))
    pView->OnPrint() ; // or the function you put this code in
else if (pos)
    {
    pView = pDoc->GetNextView(pos) ;
    if (pView->IsKindOf(RUNTIME_CLASS(CTreeView))
        pView->OnPrint() ; // or the function you put this code in
    }

The above code would have to be in each of the mentioned functions and call through to the other views printing support functions.

You will have some issue such as page numbering etc to deal with.

Roger Allen
Sonork 100.10016

I have a terminal disease. Its called life!

How to change menu's font ?

Nguyen Huynh Hung22-Oct-02 17:52

Nguyen Huynh Hung

22-Oct-02 17:52

Could you tell me the way to change the font of menu as well as its items in a application.
Thanks.

Re: How to change menu's font ?

José Luis Sogorb23-Oct-02 7:11

José Luis Sogorb

23-Oct-02 7:11

Well, I did it in a Dialog, I suppose it's similar in a menu:
BOOL CDialogoCargos::OnInitDialog()
{
CDialog::OnInitDialog();
CFont m_Font;
m_Font.CreateFont(45,0,0,0,100,FALSE,FALSE,0,ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,FF_SWISS,"Arial");
CEdit * pEdit;
pEdit = (CEdit *)GetDlgItem(IDC_EDIT_CARGOS);
pEdit->SetFont(&m_Font,FALSE);
return TRUE;
}
This changes the font an edit box of my dialog.
Hope this helps.

Help! ON_UPDATE_COMMAND_UI Not called prior to menu display

work_to_live22-Oct-02 15:24

work_to_live

22-Oct-02 15:24

I've been going round and round for a few hours now, and can't see what's wrong with my application. I have a doc/view application that uses multiple static splitter windows for the views. I created a menu and added handlers for both the command and update messages, in the view class. For some reason, the update message handler is not called prior to displaying the menu, and consequently, the menu is not set up properly (Checked items are not updated). I have verified with another application that works properly that the message maps are created properly.

I realize this is a fairly wide open description of a problem, but so far, I've received excellent suggestions (solutions) for problems I've had in the past with a simple description like this.

Any suggestions on where to look?

Thanks in advance.

Re: ON_UPDATE_COMMAND_UI Not called prior to menu display

Roger Allen23-Oct-02 1:10

Roger Allen

23-Oct-02 1:10

At a guess, I would say that the ON_COMMAND_UI handler come through to the first view added and not those supported in the splitter windows. If you undate handlers are in the spliiter window added views then they would not be called. You have to implement some kind of mechanism which would route these checks through from the first view to these sub-views to allow them to update/act on the commands.

Roger Allen
Sonork 100.10016

I have a terminal disease. Its called life!

Re: Help! ON_UPDATE_COMMAND_UI Not called prior to menu display

Jonathan Craig23-Oct-02 6:29

Jonathan Craig

23-Oct-02 6:29

See my reply to another post: http://www.codeproject.com/script/comments/forums.asp?msg=187019&forumid=1647&kw=Jonathan+Craig#xx187019xx. If each of your CView classes can handle the messages, then it is just a matter of getting the messages to the correct view. You may need to customize the CSplitterWnd::OnCmdMsg override to route the message to all the views.
Smile | :)

Jonathan Craig
www.mcw-tech.com

Re: Help! ON_UPDATE_COMMAND_UI Not called prior to menu display

work_to_live23-Oct-02 9:04

work_to_live

23-Oct-02 9:04

Jonathan, Even though I see some behavior that indicates the messages are routed at some level, I'll give your suggestion a try. The behavior I'm talking about is the fact that the ON_UPDATA_COMMAND_UI handler is called after the menu is dismissed, not before. Of course it'll all probably make perfect sense once I get to the bottom of it. Smile | :)

Thanks.

Re: Help! ON_UPDATE_COMMAND_UI Not called prior to menu display

work_to_live23-Oct-02 12:00

work_to_live

23-Oct-02 12:00

Tried overriding OnCmdMsg in CChildFrame, and my splitter window. Still no luck. Then I thought I'd try placing the menu items on the main menu bar instead of in the popup menu I was using (an important piece of information I omitted from the original problem statement). The menu bar implementation worked perfectly.

It got me thinking it must have something to do with the way I implemented the popup menu. The only thing I saw was the use of the this pointer as the owner of the popup menu (my view). I changed the owner from this to GetParentFrame(), and everything started working! I suppose the mechanism that implements the ON_UPDATE_COMMAND_UI message is above the View class in this MDI multi splitter window application.
Oh well, live and learn.

Here's the simple change that solved the problem.
was...
subMenu->TrackPopupMenu(0, point.x, point.y,this, NULL);
is... (works)
subMenu->TrackPopupMenu(0, point.x, point.y,GetParentFrame(), NULL);

Thanks anyway for taking the time to respond. Maybe this will help someone else.

intermediate project?

Brian Olej22-Oct-02 14:52

Brian Olej

22-Oct-02 14:52

Hello everyone, I first started learning C++ a few years back but I only bothered learning the basics because much like every beginning developer I wanted to create some windows! With this I have created myself a problem, I've started to learn MFC with only the basic knowlege of C++ which makes it incredibly difficult... So this is where I would like to ask help from all of you! Could anyone give me an idea of a console project I could do in C++ that would require atleast intermediate skill in C++ so that I can push myself to learn better C++? I would greatly appreciate any ideas! Smile | :)

Re: intermediate project?

Christian Graus22-Oct-02 15:32

Christian Graus

22-Oct-02 15:32

First of all, good for you for being willing to recognise the need to go back to C++ without the MFC trimmings, etc.

You should own 'The C++ Programming Language' by Bjarne Stroustrup if you program C++. If you don't, go out and buy it. As well as being a great reference, it is full of suggested projects so you can choose tasks that relate to the areas you want to learn.

Christian

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

Re: intermediate project?

Brian Olej22-Oct-02 15:47

Brian Olej

22-Oct-02 15:47

Alright, thanks! I will pick it up this weekend.

Non MFC Async Socket Class

Jared Allen22-Oct-02 14:47

Jared Allen

22-Oct-02 14:47

Hey I'm in a big need for a async sockect class that is pretty much a clone of the MFC version, with all it's features.. But importantly Is thread safe! . or doesn't have to be used in a single thread

Any ideas ? I'm looking for any library out there that you guys can recommend , free is good but $$$ is fine if it does the job and is solid.

Thanks heaps!

Jared Allen.
www.chironexsoftware.com

Re: Non MFC Async Socket Class

Anonymous22-Oct-02 17:40

Anonymous

22-Oct-02 17:40

why do you want to use an async sockect class in more than one thread?

CRC32 without MFC

int01h22-Oct-02 14:32

int01h

22-Oct-02 14:32

do you know where can i get a simplest crc32 algorithm written without mfc?

Re: CRC32 without MFC

Chris Richardson22-Oct-02 15:19

Chris Richardson

22-Oct-02 15:19

Why not just take this article and adapt the source?
http://www.codeproject.com/cpp/crc32_large.asp[^]

Chris Richardson

Re: CRC32 without MFC

C^hris L^osinger22-Oct-02 15:59

C^hris L^osinger

22-Oct-02 15:59

zLib has a pure C implementation

http://www.gzip.org/zlib/

-c

"[it was..] one of those evenings when you feel that not only will there definitely be a revolution, but that the Association of Manufacturers will foot the bill."
-- Umberto Eco, Foucault's Pendulum

Smaller Animals Software

Re: CRC32 without MFC

Daniel Turini22-Oct-02 22:21

Daniel Turini

22-Oct-02 22:21

Google[^]

Q261186 - Computer Randomly Plays Classical Music

StayOnTop for window.

int01h22-Oct-02 13:33

int01h

22-Oct-02 13:33

Im wondering how to set a "StayOnTop" for some window.
Could anyone help me?
No mfc.

Re: StayOnTop for window.

Christian Graus22-Oct-02 13:36

Christian Graus

22-Oct-02 13:36

::SetWindowPos(myHWND, &hwndTopMost, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);

&hwndTopMost might be wrong, but it's something like that, the rest is correct. Check MSDN for the right parameter if I blew it.

Christian

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

Re: StayOnTop for window.

int01h22-Oct-02 13:39

int01h

22-Oct-02 13:39

true, it should be:
SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);

big thx.

Re: StayOnTop for window.

Christian Graus22-Oct-02 13:44

Christian Graus

22-Oct-02 13:44

No worries - I think I may have given you the MFC paramters, but so long as it got you on the right path.

Christian

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

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