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ole32: Use IsEqualIID rather than memcmp.

This commit is contained in:
Huw Davies 2009-03-17 14:33:33 +00:00 committed by Alexandre Julliard
parent 319d0ddca6
commit c0fbbe7d91
1 changed files with 4 additions and 20 deletions
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24
dlls/ole32/clipboard.c
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@ -730,40 +730,24 @@ static HRESULT WINAPI OLEClipbrd_IDataObject_QueryInterface(
void** ppvObject)
{
ole_clipbrd *This = impl_from_IDataObject(iface);
TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObject);
TRACE("(%p)->(IID:%s, %p)\n", This, debugstr_guid(riid), ppvObject);
/*
* Perform a sanity check on the parameters.
*/
if ( (This==0) || (ppvObject==0) )
return E_INVALIDARG;
/*
* Initialize the return parameter.
*/
*ppvObject = 0;
/*
* Compare the riid with the interface IDs implemented by this object.
*/
if (memcmp(&IID_IUnknown, riid, sizeof(IID_IUnknown)) == 0)
if (IsEqualIID(&IID_IUnknown, riid) ||
IsEqualIID(&IID_IDataObject, riid))
{
*ppvObject = iface;
}
else if (memcmp(&IID_IDataObject, riid, sizeof(IID_IDataObject)) == 0)
{
*ppvObject = &This->lpvtbl;
}
else /* We only support IUnknown and IDataObject */
else
{
WARN( "() : asking for unsupported interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
/*
* Query Interface always increases the reference count by one when it is
* successful.
*/
IUnknown_AddRef((IUnknown*)*ppvObject);
return S_OK;