Re: Dynamic Menu

From:

Kuenga <sagkumar@gmail.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sat, 4 Apr 2009 10:42:02 -0700 (PDT)

Message-ID:

<7f25948d-c6de-4283-bfc0-2b77e6356f45@r5g2000prh.googlegroups.com>

On Apr 4, 6:17 pm, Kuenga <sagku...@gmail.com> wrote:

On Apr 3, 7:56 pm, Ajay <ajayka...@yahoo.com> wrote:

There is no direct way to find the text from the id as id is menu
agnostic. The command could have been generated from a toolbar/menu
etc.

Take a look at TPM_RETURNCMD flag in TrackMenuPopup. You can get the
text of the command that was hit in the menu from the ID and set the
text to some member variable. You can then access it later in the
view. Make sure to clear this member variable before the menu is
displayed.

--
Ajay

On Apr 3, 5:20 am, Kuenga <sagku...@gmail.com> wrote:

Hi,

I am working on an application where number of menus items are
dynamic, it could be 10 or even 1000.
How to implement that ?

I am thinking of implementing by having one menu id but different
string being added to the menu. But the problem I am facing is to kno=

which menu was pressed since ID is same and only menu string name is
different. In the menu command handler how to get the string of the
menu that was pressed ?

Below is the code snippet

char *menuString[] = { "Test1", "Test2" };
void CTclCallBackView::OnRButtonUp(UINT nFlags, CPoint point)
{
    CMenu mnMenu;
    mnMenu.CreatePopupMenu();
    CPoint m_ptPopupMenu = point;
    ClientToScreen(&m_ptPopupMenu);
    int count = sizeof(menuString)/sizeof(menuString[0]);
    for(int i=0;i<count;++i)
        mnMenu.AppendMenu(MF_ENABLED | MF_STRING, ID_ASCENDHI=

ERARCHY,

menuString[i]);
CWnd* pFrame = AfxGetMainWnd(); // get the mainfram=

    if (!pFrame)
    {
        pFrame = GetParentFrame();
        if (!pFrame) pFrame = this;
    }
        mnMenu.TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON=

m_ptPopupMenu.x,
=

m_ptPopupMenu.y,

pFrame, NULL);

        CView::OnRButtonUp(nFlags, point);

}

BEGIN_MESSAGE_MAP(CTclCallBackView, CView)
        // Standard printing commands
        ON_COMMAND(ID_FILE_PRINT, &CView::OnFilePrint)
        ON_COMMAND(ID_FILE_PRINT_DIRECT, &CView::OnFilePrint)
        ON_COMMAND(ID_FILE_PRINT_PREVIEW, &CView::OnFilePrint=

Preview)

        ON_WM_PAINT()
        ON_WM_LBUTTONDBLCLK()
        ON_WM_RBUTTONUP()

        ON_COMMAND(ID_ASCENDHIERARCHY, OnAscendhierarchy)
        ON_UPDATE_COMMAND_UI(ID_ASCENDHIERARCHY, OnUpdateAsce=

ndhierarchy)

END_MESSAGE_MAP()

void CTclCallBackView::OnAscendhierarchy()
{
AfxMessageBox("Hello");
//Need to get the string of the menu that was pressed ?

}

void CTclCallBackView::OnUpdateAscendhierarchy(CCmdUI* pCmdUI)
{
pCmdUI->Enable(TRUE);

}- Hide quoted text -

- Show quoted text -

HI,

Stroing in map is not suitable as ID is same.

TPM_RETURNCMD returns menu ID and not the string.

Is it possible to get the index of the menu string that was pressed ?
Suppose on RMB the menu contains string "Test1" and "Test2". When
users presses the menu "Test2", I get the index two of the menu was
pressed. This clould also solve the problem, but I am not able to get
the index also.

All the menu API, uses menu ID which is same and the menu string being
different.

Is it possible to do in MFC ?- Hide quoted text -

- Show quoted text -

what's the maximum number of menu items that can be put ? I am
thinking of using the ON_COMMAND_RANGE and define menu in resoure.h as

#define ID_TEST 1000
#define ID_TEST_MAX 70000

and append to the menu as

for(int i=0;i<count;++i)
mnMenu.AppendMenu(MF_ENABLED | MF_STRING, ID_TEST+i,
menuString[i]);

Is there any problem to this solution for my problem ?

Thanks

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