Re: vc++ 6.0: Accessing the application's view from the CMainFrame class?

From:

deostroll <deostroll@gmail.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 25 Dec 2007 23:52:07 -0800 (PST)

Message-ID:

<ac58c26f-492b-488b-a319-06224769be92@s12g2000prg.googlegroups.com>

On Dec 26, 12:19 pm, Joseph M. Newcomer <newco...@flounder.com> wrote:

Add ON_UPDATE_COMMAND_UI handlers for these buttons to your view.
joe

On Tue, 25 Dec 2007 23:11:29 -0800 (PST), deostroll <deostr...@gmail.com> =

wrote:

On Dec 26, 9:58 am, "Scott McPhillips [MVP]" <org-dot-mvps-at-
scottmcp> wrote:

"deostroll" <deostr...@gmail.com> wrote in message

news:cc19485c-01c8-458c-99bc-4bcfd0ad9635@l6g2000prm.googlegroups.com...=

Hi,

The project is a simple database implementation using the mfc app
wizard. On my DB form I have a button and 2 edit controls. My toolbar=

has buttons by which I can navigate to any record. But it is only whe=

I click on the button I can see the record details. I want this to
change. I want the button's job done when I click on the toolbar
button...as I double clicked the toolbar to write code in it I find
that it does not come in the application's view class (CDBView); that=

is where I had coded for my button's click event. Instead I an
supposed to write code in the CMainFrame class. I cannot access the
view object from here. I tried something like this:

void CMainFrame::OnRecordFirst()
{
// TODO: Add your command handler code here
CDBView* myViewObj = (CDBView *) GetActiveView();
}

It gave me an error saying "CDBView : Undeclared indentifier". I am
trying not to write the code I have written for my button all over
again. Is there a more direct approach or should I just use
SendMessage() to initiate the button's click event?

-deostroll

Toolbar clicks (and menu commands) can be handled in the view, or the
document, or the mainframe. MFC sends them around for you until it f=

inds a

handler.

Right click on the view class in Class View. Select 'Properties.' =

Select

the lightning bolt. It shows all your toolbar and menu IDs, and you =

can

click to add a command handler for a toolbar button message in your vie=

class.

--
Scott McPhillips [VC++ MVP]- Hide quoted text -

- Show quoted text -

Hi again,
The toolbar (record navigation buttons) isn't updating properly.
Initially, when my application started I have the 'Next Record' and
the 'Last Record' buttons active because the pointer to the recordset
pointed to the first record in the result set. And when I clicked on
Next, the other two buttons (Previous record & First record) used to
become automatically enabled; and vice versa for the last record in
the result set. What must I do to mimic this behaviour?

-deostroll

Joseph M. Newcomer [MVP]
email: newco...@flounder.com
Web:http://www.flounder.com
MVP Tips:http://www.flounder.com/mvp_tips.htm- Hide quoted text -

- Show quoted text -

I suppose the problem is ON_COMMAND(ID_RECORD_NEXT, OnRecordNext).

Because if I commented this line and ran the program the toolbar
buttons would work as I mentioned before. I am handling the code to
display data to my edit controls here. And of course it is in the
application's view class...even including an ON_UPDATE_COMMAND_UI
macro does not work.

-deostroll