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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| No
| Import Library
| -
| Header File
| shlobj.h
| Unicode
| No
| Platform Notes
| None
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IShellView::UIActivate
[Now Supported on Windows NT]
Called by the Explorer whenever the activation state of the view window is
changed by a certain event that is not caused by the shell view itself. For
example, if the TAB key is pressed when the tree has the focus, the view should be given the focus.
HRESULT UIActivate(
UINT uState
| // activation state flag
| );
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Parameters
uState
Flag specifying the activation state of the window. This parameter can be one
of the following values:
Value
| Meaning
| SVUIA_ACTIVATE_FOCUS
| The Explorer has just created the view window with the input focus. This means
the shell view should be able to set menu items appropriate for the focused
state.
| SVUIA_ACTIVATE_NOFOCUS
| The shell view is either losing the input focus or it has just been created
without the input focus. The shell view should be able to set menu items
appropriate for the nonfocused state. This means no selection-specific items should be
added.
| SVUIA_DEACTIVATE
| The Explorer is about to destroy the shell view window. The shell view should
remove all extended UIs, typically merged menu and modeless popup windows.
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Return Values
Returns NOERROR if successful or an OLE-defined error value otherwise.
Remarks
To remerge menu items, the shell view typically hooks the WM_SETFOCUS message
and calls IShellBrowser::OnViewWindowActivated before remerging. The shell view should not hook the WM_KILLFOCUS message to
remerge menu items.
Notes to Callers
Call this method to inform the view of activation state change.
Notes to Implementors
Use this method to track activation state and change any behavior, as
appropriate.
See Also
IShellView
Related Links
Software for Delphi and C++ Builder developers
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More Online Helps
Win32 Multimedia Programmer's Reference (mmedia.hlp)
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Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
Unix Manual Pages
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