1 out of 1 rated this helpful - Rate this topic

IDataObject::QueryGetData method

Applies to: desktop apps only

Determines whether the data object is capable of rendering the data as specified. Objects attempting a paste or drop operation can call this method before calling IDataObject::GetData to get an indication of whether the operation may be successful.

Syntax

Copy

HRESULT QueryGetData(
  [in]  FORMATETC *pformatetc
);

Parameters

pformatetc [in]: A pointer to the FORMATETC structure defining the format, medium, and target device to use for the query.

Return value

This method returns S_OK on success. Other possible values include the following

Return code	Description
DV_E_LINDEX	Invalid value for lindex; currently, only -1 is supported.
DV_E_FORMATETC	Invalid value for pformatetc.
DV_E_TYMED	The tymed value is not valid.
DV_E_DVASPECT	The dwAspect value is not valid.
OLE_E_NOTRUNNING	The object application is not running.
E_UNEXPECTED	An unexpected error has occurred.
E_INVALIDARG	The dwDirection value is not valid.
E_OUTOFMEMORY	There is insufficient memory available for this operation.

Remarks

The client of a data object calls QueryGetData to determine whether passing the specified FORMATETC structure to a subsequent call to IDataObject::GetData is likely to be successful. A successful return from this method does not necessarily ensure the success of the subsequent paste or drop operation.

Requirements