SDI-display a dialog via a seleted popup menu item

Question

I have a SDI application and I would like to display a dialog after selecting a popup menu item to call it My dialog class is defined as:

class Dialog:public CDialogEx
{};

and an added function to view class named OnCallDlg does something as simple as:

void CAppView::OnCallDlg()
{
   Dialog d;
   d.DoModal();

}

But there is nothing shown up after I choose an item in the popup menu when rightmouse clicking the view.

Do you handle the WM_COMMAND message corresponding to the selected item in the context menu? Where are you calling the OnCallDlg function? — Cody Gray
Yes, I do it via add-function wizard and on the CAppView class, the debug shows I reach the call DoModal, only that it returns me -1. By the way, I am using VS10. — Mr.DayDreamer
You missed step 2 in msdn.microsoft.com/en-us/library/6wb9s9ah.aspx — Hans Passant
Yeah, as Hans indicates, you forgot to actually create the dialog to be shown. — Cody Gray

ethan ethan · Accepted Answer · 2011-07-12T10:46:05

You have to attach the ID to your dialog using following pattern:

Dialog d(ID_DIG); d.doModal();