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ole32: Contrary to MSDN, IROTData doesn't need to be implemented for a moniker to be usable with the running object table. 

If IROTData isn't available, fall back to a path that uses the display 
name and the clsid of the moniker to generate the comparison data.
This commit is contained in:
Rob Shearman 2006-12-28 02:42:01 +00:00 committed by Alexandre Julliard
parent 341bf7a44a
commit bf33f9410f
1 changed files with 46 additions and 11 deletions
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57
dlls/ole32/moniker.c
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@ -40,6 +40,7 @@
#include "wine/list.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "compobj_private.h"
@ -143,22 +144,56 @@ static HRESULT get_moniker_comparison_data(IMoniker *pMoniker, MInterfacePointer
{
HRESULT hr;
IROTData *pROTData = NULL;
ULONG size = MAX_COMPARISON_DATA;
hr = IMoniker_QueryInterface(pMoniker, &IID_IROTData, (void *)&pROTData);
if (hr != S_OK)
if (SUCCEEDED(hr))
{
ERR("Failed to query moniker for IROTData interface, hr = 0x%08x\n", hr);
return hr;
ULONG size = MAX_COMPARISON_DATA;
*moniker_data = HeapAlloc(GetProcessHeap(), 0, FIELD_OFFSET(MInterfacePointer, abData[size]));
hr = IROTData_GetComparisonData(pROTData, (*moniker_data)->abData, size, &size);
if (hr != S_OK)
{
ERR("Failed to copy comparison data into buffer, hr = 0x%08x\n", hr);
HeapFree(GetProcessHeap(), 0, *moniker_data);
return hr;
}
(*moniker_data)->ulCntData = size;
}
*moniker_data = HeapAlloc(GetProcessHeap(), 0, FIELD_OFFSET(MInterfacePointer, abData[size]));
hr = IROTData_GetComparisonData(pROTData, (*moniker_data)->abData, size, &size);
if (hr != S_OK)
else
{
ERR("Failed to copy comparison data into buffer, hr = 0x%08x\n", hr);
HeapFree(GetProcessHeap(), 0, *moniker_data);
return hr;
IBindCtx *pbc;
LPOLESTR pszDisplayName;
CLSID clsid;
int len;
TRACE("generating comparison data from display name\n");
hr = CreateBindCtx(0, &pbc);
if (FAILED(hr))
return hr;
hr = IMoniker_GetDisplayName(pMoniker, pbc, NULL, &pszDisplayName);
IBindCtx_Release(pbc);
if (FAILED(hr))
return hr;
hr = IMoniker_GetClassID(pMoniker, &clsid);
if (FAILED(hr))
{
CoTaskMemFree(pszDisplayName);
return hr;
}
len = strlenW(pszDisplayName);
*moniker_data = HeapAlloc(GetProcessHeap(), 0,
FIELD_OFFSET(MInterfacePointer, abData[sizeof(CLSID) + (len+1)*sizeof(WCHAR)]));
if (!*moniker_data)
{
CoTaskMemFree(pszDisplayName);
return E_OUTOFMEMORY;
}
(*moniker_data)->ulCntData = sizeof(CLSID) + (len+1)*sizeof(WCHAR);
memcpy(&(*moniker_data)->abData[0], &clsid, sizeof(clsid));
memcpy(&(*moniker_data)->abData[sizeof(clsid)], pszDisplayName, (len+1)*sizeof(WCHAR));
}
(*moniker_data)->ulCntData = size;
return S_OK;
}