OleFlushClipboard
Carries out the clipboard shutdown sequence. It also releases the instance of
the
IDataObject interface that was placed on the clipboard by the
OleSetClipboard function.
HRESULT OleFlushClipboard();
Return Values
S_OK
Indicates the clipboard has been flushed.
CLIPBRD_E_CANT_OPEN
Indicates the Windows
OpenClipboard function used within
OleFlushClipboard failed.
CLIPBRD_E_CANT_CLOSE
Indicates the Windows
CloseClipboard function used within
OleFlushClipboard failed.
Comments
If you are writing an application that can act as the source of a clipboard
operation, you can call
OleFlushClipboard to flush the clipboard and release the instance of
IDataObject when your application is closed (e.g., if the user exits from your
application). A call to the
OleSetClipboard function using NULL will empty the clipboard.
The difference is that
OleFlushClipboard leaves all formats offered by the data transfer object, including the OLE 1
compatibility formats, on the clipboard so they are available after application
shutdown. In addition to OLE 1 compatibility formats, these include all formats
offered on a global handle medium (all except for TYMED_FILE) and formatted
with a NULL target device.
When your application closes, you should call
OleSetClipboard using NULL if there is no need to leave data on the clipboard after shutdown
or if data will be placed on the clipboard using the standard Windows clipboard
functions. Applications should call
OleFlushClipboard to enable pasting and paste-linking of OLE objects after shutdown.
Before calling
OleFlushClipboard, it must be convenient to check the clipboard. You can call the
OleIsCurrentClipboard function to determine if your data is still on the clipboard.
See Also
OleSetClipboard,
OleIsCurrentClipboard,
IDataObject,
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