When adding each new button to a popup menu I am giving each button a unique ID at run time. There are literally thousands of them in a relatively simply and organized menu hierarchy.

 

The question is: Do I need to enter a member function/procedure for each unique ID's event handler or is there a way to have a single shared handler for these dynamically generated buttons, that can simply accept the unique ID as a parameter and deal with it?

 

Thanks in advance.

 

You can use ON_COMMAND_RANGE macro:

ON_COMMAND_RANGE(MINRANGE, MAXRANGE, OnDynamicButtton)

 

void CMainFrame::OnDynamicButtton(UINT nButton)
{
}

 

or specific for XTP Menus: use same ID for all dynamic buttons but assign some parameter/integer data for CXTPControl.

 

Another embarrassing question came up. If they use a shared ID (one handler procedure set with ON_COMMAND) and I place a custom value in the CXTPControlButton using SetTag for example when creating the menu items, how do I get a pointer to the CXTPControlButton pressed from the handler function (so I can retreive the custom value)?

 

The problem is ON_COMMAND handlers take no parameters so how do I get the CXTPControlButton that initated the command handler?

 

Here is what I did:

- Derived a custom menu item class from CXTPControlButton

- Override OnLButtonUp for my derived menu item.

- When adding the dynamic menu item to the controls list I use the Add function that lets me pass in my derived control instead of the version that lets me pass the control type.

- I don't use ON_COMMAND at all for custom menu item handling.

 

This way works. Let me know if there is a better way.

 

Thanks.

Hi,

 

your way is too difficult :) and user can press Enter instead click mouse.

 

easy way is use ON_XTP_EXECUTE macro:

 

ON_XTP_EXECUTE(ID_FAVORITE_LINK, OnFavorite)

 

 

void CMainFrame::OnFavorite(NMHDR* pNMHDR, LRESULT* pResult)
{
 NMXTPCONTROL* tagNMCONTROL = (NMXTPCONTROL*)pNMHDR;
 AfxMessageBox(tagNMCONTROL->pControl->GetParameter());

 *pResult = 1;
}

 

check Samples\CommandBars\DynamicPopups it show how create dynamic favorites with same way.