| description | title | ms.date | helpviewer_keywords | ms.assetid | |||||
|---|---|---|---|---|---|---|---|---|---|
Learn more about: The CCmdUI Class |
The CCmdUI Class |
11/04/2016 |
|
2f2bae62-8c29-45a4-bbce-490eb01907d5 |
When it routes an update command to its handler, the framework passes the handler a pointer to a CCmdUI object (or to an object of a CCmdUI-derived class). This object represents the menu item or toolbar button or other user-interface object that generated the command. The update handler calls member functions of the CCmdUI structure through the pointer to update the user-interface object. For example, here is an update handler for the Clear All menu item:
[!code-cppNVC_MFCDocView#3]
This handler calls the Enable member function of an object with access to the menu item. Enable makes the item available for use.