Shell API Notifications
The following table shows the Shell API notifications, with a description of the purpose of each.
| Programming element | Description |
|---|---|
| DLN_COPY | This notification message is currently not implemented. |
| DLN_DELETINGSEL | This notification message is sent prior to the deletion of a file from the document list; the path name is sent with the message header, allowing the application to close the file if it is currently open. |
| DLN_DOWN | This notification message is sent to indicate the VK_DOWN key was pressed while the document list view was open. |
| DLN_ESCAPE | This notification message is sent to indicate the Escape key was pressed while the document list view was open. It is up to each application to handle this event. |
| DLN_FILECHANGEINFO | This notification message is sent when the document list receives a WM_FILECHANGEINFO message. |
| DLN_FOLDER | This notification message is sent when a new folder is selected in the document list view; the path name of the folder is passed along with this notification. |
| DLN_ITEMACTIVATED | This notification message is sent to indicate an item has been clicked or tapped; a path name is sent with this notification. |
| DLN_ITEMCHANGED | This notification message is sent to indicate that an item in the document list view has changed. |
| DLN_ITEMCHANGING | This notification message is sent to indicate that an item in the document list view is currently changing. |
| DLN_NOHIT | This notification message is sent when a LVN_ITEMCHANGED notification message is received and no item is currently selected in the document list view. |
| DLN_NOITEMS | This notification message is sent to indicate that no files are contained in the document list view and that the application should update the interface to reflect the lack of files (disable the Property button, for example). |
| DLN_POSTUPDATE | This notification message is sent just after the document list is updated. |
| DLN_PREDELETESEL | This notification message is sent prior to the deletion of one or more elements in the document list. |
| DLN_PREUPDATE | This notification message is sent just before the document list is updated. |
| DLN_PRINT | This notification message is sent when the Print command is selected from the context menu; the path name of the file to be printed is passed along with this notification. |
| DLN_PROP | This notification message is currently not implemented. |
| DLN_UP | This notification message is sent to indicate the VK_UP key was pressed while the document list view was open. |
| GN_CONTEXTMENU | This notification message is sent in the form of a WM_NOTIFY message. |
| NM_RECOGNIZEGESTURE | This notification message is sent to allow the application to decide if it wants automatic gesture recognition in common controls or not. |
| NMN_GETAPPREGKEY | This notification message is sent to retrieve the application specific registry key for New menu items.
This notification message is not supported for Windows Mobile Version 5.0. |
| NMN_GETPROPERTYBAG | This notification message is sent to retrieve an IPersistPropertyBag interface pointer that will be used to initialize the new object. |
| NMN_INVOKECOMMAND | This notification message is sent to an application before a new instance of the Component Object Model (COM) object is created. |
| NMN_NEWBUTTONUPDATED | This notification message is sent to applications when the shared New button style changes.
This notification message is not supported for Windows Mobile 5.0. |
| NMN_NEWMENUDESTROY | This notification message is sent to an application before the shared New menu is destroyed.
This notification message is not supported for Windows Mobile 5.0. |
| SH_UIMETRIC_CHANGE | This notification is sent to an application when the user changes the text size from the Screen control panel application. |
| WM_FILECHANGEINFO | Sent (by SendNotifyMessage from the shell) to the window that was registered with SHChangeNotifyRegister. |
See Also
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