Delay population of a sub menu in Windows and C++

Question

I have an C++ MFC CMenu based context menu object that has several menu items and one menu item is a popup menu (ie has a sub menu). Populating the sub menu is a time intensive process so I don't want to actually populate it until the user clicks on it.

How do I detect the display of the sub menu so I can only populate it when the user clicks on it?

I'm using TrackPopupMenu to display the menu to the user.

score 0 · Answer 1 · answered Mar 08 '11 at 21:47

0

You can catch the WM_CONTEXTMENU message in the window. Then you can do whatever you like in response to that message.

answered Mar 08 '11 at 21:47

Tommy Hui

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score 0 · Accepted Answer · answered Mar 08 '11 at 22:10

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You want WM_INITMENUPOPUP.

answered Mar 08 '11 at 22:10

Luke

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Delay population of a sub menu in Windows and C++

2 Answers2