IContextMenu2
The IContextMenu2
interface is used to either create or merge a context menu associated with a
certain object when a client of IContextMenuGAKT5J is supposed to handle messages associated
with owner-drawn menu items.
When to Implement
Implement IContexMenu2
if your object is a client of IContextMenu when owner-drawn messages are
an issue: Do so if it is possible to receive one of the following messages
while calling TrackPopupMenu in the window procedure of the menu s owner
window:
WM_INITPOPUP
WM_DRAWITEM
WM_MEASUREITEM
These
messages are sent only if a QueryInterface call for an IContextMenu2 interface
pointer is successful, indicating that the object supports this interface.
When to Use
You do not
call this interface directly. IContextMenu2 is used by the operating
system only when it has confirmed that the application is aware of this
interface.
Methods in Vtable Order
|
IUnknown
Methods |
Description |
|
QueryInterface |
Returns
pointers to supported interfaces. |
|
AddRef |
Increments
reference count. |
|
Release |
Decrements
reference count. |
|
IContextMenu2
Methods |
Description |
|
QueryContextMenu |
Adds
commands to a context menu. |
|
HandleMenuMsg |
Handles
messages related to drawing owner-drawn menu items. |
|
InvokeCommand |
Carries out
a menu command, either in response to user input or otherwise. For an
example, see IExtractIcon. |
|
GetCommandString |
Retrieves
the language-independent name of a menu command or the help text for a menu
command. |