Dynamic Menu

From:

Kuenga <sagkumar@gmail.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Fri, 3 Apr 2009 02:20:44 -0700 (PDT)

Message-ID:

<37beafea-569d-4d30-98f3-5854029fca41@d38g2000prn.googlegroups.com>

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 know
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_ASCENDHIERARCHY,
menuString[i]);
    CWnd* pFrame = AfxGetMainWnd(); // get the mainframe.
    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::OnFilePrintPreview)
    ON_WM_PAINT()
    ON_WM_LBUTTONDBLCLK()
    ON_WM_RBUTTONUP()

    ON_COMMAND(ID_ASCENDHIERARCHY, OnAscendhierarchy)
    ON_UPDATE_COMMAND_UI(ID_ASCENDHIERARCHY, OnUpdateAscendhierarchy)
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);
}