Re: unable to use interface IWMPSettings2
call QueryInterface on the IDispatch returned by settings
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Regards
Sheng Jiang
Microsoft Most Valuable Professional in Visual C++
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"Ashutosh" <ashu-wipro@nospam.nospam> ?;#XN
news:%23WBxljWkGHA.1208@TK2MSFTNGP02.phx.gbl...
Hi
I added two wrapper classes CWMPPlayer4 and CWMPSettings2 to wrap
interfaces
IWMPPlayer4 and IWMPSettings2 respectively.
I have a windows media player control on my dialog box. I have added a
control variable "wmp" of type CWMPPlayer4.
The problem is that I can't get pointer of CWMPSettings2 .
the fuction CWMPSettings2 ::get_settings is (this code is automatically
generated when I add the class from activeX dll)
LPDISPATCH get_settings()
{
LPDISPATCH result;
InvokeHelper(0x5, DISPATCH_PROPERTYGET, VT_DISPATCH, (void*)&result,
NULL);
return result;
}
when I do CWMPSettings2 sp= wmp.get_settings();
it gives me error so I tried
LPDISPATCH LP=wmp.get_settings();
CWMPSettings2 *sp=(CWMPSettings2*)&LP;
long k=sp->get_volume();
Even this doesn't work, the application just crashes, when calling any
function..
Please help.
Regards,
Ashutosh
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