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oleaut32: Implement automatic value getting in ITypeInfo::Invoke. 

If an IDispatch object is returned from in the retval for a propget 
function and an extra parameter was passed in to ITypeInfo::Invoke then 
it should call IDispatch::Invoke on the returned object with the extra 
parameter to retrieve the value of the object, which is then returned in 
pVarResult.
This commit is contained in:
Rob Shearman 2007-02-07 19:28:43 +00:00 committed by Alexandre Julliard
parent 8b43f8bec9
commit a3235dd1d4
2 changed files with 39 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
dlls/oleaut32/tests/tmarshal.c
View File

@ -898,11 +898,8 @@ static void test_typelibmarshal(void)
"EXCEPINFO differs from expected: wCode = 0x%x, scode = 0x%08x\n",
excepinfo.wCode, excepinfo.scode);
todo_wine
{
ok(V_VT(&varresult) == VT_I2, "V_VT(&varresult) was %d instead of VT_I2\n", V_VT(&varresult));
ok(V_I2(&varresult) == 1234, "V_I2(&varresult) was %d instead of 1234\n", V_I2(&varresult));
}
VariantClear(&varresult);
/* call Value with a VT_VARIANT|VT_BYREF type */
@ -1033,10 +1030,7 @@ static void test_typelibmarshal(void)
dispparams.rgdispidNamedArgs = NULL;
dispparams.rgvarg = vararg;
hr = IDispatch_Invoke(pDispatch, DISPID_TM_STATE, &IID_NULL, LOCALE_NEUTRAL, DISPATCH_PROPERTYGET, &dispparams, &varresult, &excepinfo, NULL);
todo_wine
{
ok(hr == DISP_E_NOTACOLLECTION, "IDispatch_Invoke should have returned DISP_E_NOTACOLLECTION instead of 0x%08x\n", hr);
}
IDispatch_Release(pDispatch);
IWidget_Release(pWidget);

36
dlls/oleaut32/typelib.c
View File

@ -5519,6 +5519,19 @@ static HRESULT WINAPI ITypeInfo_fnInvoke(
if (wParamFlags & PARAMFLAG_FRETVAL)
{
/* under most conditions the caller is not allowed to
* pass in a dispparam arg in the index of what would be
* the retval parameter. however, there is an exception
* where the extra parameter is used in an extra
* IDispatch::Invoke below */
if ((i < pDispParams->cArgs) &&
((func_desc->cParams != 1) || !pVarResult ||
!(func_desc->invkind & INVOKE_PROPERTYGET)))
{
hres = DISP_E_BADPARAMCOUNT;
break;
}
/* note: this check is placed so that if the caller passes
* in a VARIANTARG for the retval we just ignore it, like
* native does */
@ -5733,6 +5746,29 @@ static HRESULT WINAPI ITypeInfo_fnInvoke(
VariantClear(&varresult);
}
if (SUCCEEDED(hres) && pVarResult && (func_desc->cParams == 1) &&
(wFlags == INVOKE_PROPERTYGET) &&
(func_desc->lprgelemdescParam[0].u.paramdesc.wParamFlags & PARAMFLAG_FRETVAL) &&
(pDispParams->cArgs != 0))
{
if (V_VT(pVarResult) == VT_DISPATCH)
{
IDispatch *pDispatch = V_DISPATCH(pVarResult);
/* Note: not VariantClear; we still need the dispatch
* pointer to be valid */
VariantInit(pVarResult);
hres = IDispatch_Invoke(pDispatch, DISPID_VALUE, &IID_NULL,
GetSystemDefaultLCID(), INVOKE_PROPERTYGET,
pDispParams, pVarResult, pExcepInfo, pArgErr);
IDispatch_Release(pDispatch);
}
else
{
VariantClear(pVarResult);
hres = DISP_E_NOTACOLLECTION;
}
}
func_fail:
HeapFree(GetProcessHeap(), 0, buffer);
break;