Converting a CString into an Array

std::auto_ptr<char> cszArg2(new char[SysStringByteLen(pDispParams->rgvarg[0].bstrVal)]);
memcpy(cszArg2.get(), pDispParams->rgvarg[0].bstrVal, sizeof(cszArg2.get()));

Hi,

Unfortunately I got an error with that one:

C:\Documents and Settings\Administrator\Desktop\Browser\CustomBrowser\CustomBrowser\Idispimp.cpp(383) : error C2039: 'auto_ptr' : is not a member of 'std'


If it at all helps, full details of the function this belongs to can be found here:

https://www.experts-exchange.com/questions/22067364/Custom-Browser-Issue.html

Cheers!

See http://www.codeproject.com/string/ctokenex.asp ("String Tokenizer Class (CTokenEx)"), this one will help you to break a string down into an array. But, since you deal with filenames, that might be problematic depending on the which delimiter tokens you use.

CString strText = "Puranik";
char * chText = strText.GetBuffer(1);

std::auto_ptr requires
#include <memory>
but you could use a regular pointer instead as long as you call delete.

But certainly as Mahesh suggests, there is no need to copy the string necessarily.

Is CStringArray any use?

Hi guys,

I ended up making a function to solve this, here is what I got:

CString* CCustomBrowserDlg::CB_GetArray(VARIANT vMyValue, int nArg2)
{
      CString* aEndArray = new CString[nArg2];
      int pos = 1;
      CComPtr<IDispatchEx> pDispEx;
      HRESULT hr=vMyValue.pdispVal->QueryInterface(IID_IDispatchEx,(void**)&pDispEx);
      DISPID dispid;
      // get the DISPID of the first item.  
      hr = pDispEx->GetNextDispID(fdexEnumAll, DISPID_STARTENUM, &dispid);
      while (hr == NOERROR)
      {
            // get the item name
            CComBSTR bstrName;
            hr = pDispEx->GetMemberName(dispid, &bstrName);

            // get the item value
            CComVariant vValue;
            DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
            hr = pDispEx->InvokeEx(dispid, LOCALE_USER_DEFAULT,
                  DISPATCH_PROPERTYGET, &dispparamsNoArgs,
                  &vValue, NULL, NULL);

            if (pos <= nArg2)
            {
                  switch (vValue.vt)
                  {
                  case VT_I4:
                        // value is integer
                        char buf[5];
                        itoa(vValue.iVal, buf, 10);
                        aEndArray[pos-1] = buf;
                        break;
                  case VT_BSTR:
                        // value is string
                        aEndArray[pos-1] = vValue.bstrVal;
                        break;
                  }
            }

            pos++;
            //get the DISPID of the next item.  
            hr = pDispEx->GetNextDispID(fdexEnumAll, dispid, &dispid);
      }

      return aEndArray;
}

Have you tried that with OLE2CA as shown above ?

itsmeandnobodyelse,

>>>> CString cszArg2= pDispParams->rgvarg[0].bstrVal;

has not disappeared, I merely parse that value into the function above, and it outputs an array for me.



mahesh1402,

I will be trying the other methods once I finish off a few bits of work in the office, and then will get back to you on the results, but wanted to let you all know that it's no longer urgent, as I have a working solution. :)


Cheers!

You can use the same thing.
CString cszArg2= pDispParams->rgvarg[0].bstrVal;

After this
cszArg2.GetBuffer(1) will return an array.