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QuestionChanging Title of an SDI appliction Pin
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Questiontrouble with a safe array of variants Pin
jeffery c9-Aug-13 8:56
Memberjeffery c9-Aug-13 8:56 
I have a safe array of variants I have been working on getting working in c++. I need to pass a safearray of variants with this flags in fFeatures set by default: FADF_FIXEDSIZE, FADF_STATIC, FADF_HAVEVARTYPE and FADF_VARIANT.
Trouble is I have an ATL com dll project (mouse emulator) that wraps another ATL com dll called softhidreceiver.
When I called softhidreceiver I need to pass a safe array of variants but Iam having trouble doing so. Here is an msdn forum post that never got solved but grew so large I just started a new post.
http://social.msdn.microsoft.com/Forums/vstudio/en-US/a54fdef1-6479-41dc-8662-4c615d1dab9e/invalid-safearray-of-variants#be1b5734-9a80-439e-a3dd-32f48d24ab84[^]

Anyone knowledge with safearray of variants? I have not choice in the matter unless someone has a better idea of passing values to queueinputreport?
Heres my current code though so far:
STDMETHODIMP CMMEmulator::sendinputreport(unsigned char inputreport[5], int length)
{
		
	_TCHAR szBuffer[100];
    _stprintf_s(szBuffer, _T("%i"), inputreport[1]);
  	MessageBox(NULL,L"value of second byte input report",szBuffer,NULL);

	BYTE bSampe[5] = {0x00,inputreport[1],inputreport[2],0x00,0x00};
	HRESULT        hr            = S_OK;
    SAFEARRAY     *psaData       = NULL;
    VARIANT HUGEP* pVarArrayData = NULL;
	 SAFEARRAYBOUND bound;
	bound.cElements = 5;
	bound.lLbound = 0;
 psaData = SafeArrayCreateVector(VT_VARIANT,0,5);

 hr = SafeArrayAccessData(psaData,   (void HUGEP**)&pVarArrayData);
 if (SUCCEEDED(hr))
       {
 for (long i = 0; i < 5; i++)
           {
       VariantInit(&pVarArrayData[i]);
       pVarArrayData[i].vt = VT_UI1;
       pVarArrayData[i].bVal = static_cast<byte>(bSampe[i]);
	 //  SafeArrayPutElement(psaData,&i,&pVarArrayData);
            }
 hr = SafeArrayUnaccessData(psaData);
 if (SUCCEEDED(hr))
            {
 	piSoftHidDevice1[devindex]->QueueInputReport(psaData,10);
	piSoftHidDevice1[devindex]->StartProcessing();
            }
        }
        SafeArrayDestroy(psaData);
    
	//piSoftHidDevice1[devindex]->StopProcessing();
	return S_OK;
	//Exit:
	
}

jeffery

QuestionPassing CString Pin
bkelly1322-Jul-13 16:31
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Questionchang folder's icon Pin
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QuestionCOM technology and use Pin
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AnswerRe: COM technology and use Pin
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SuggestionHelp : learn ATL, STL and COM Pin
shanmugarajaa8-Jul-13 18:59
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