Print Page - BYREF and Arrays in COM programming

Title: BYREF and Arrays in COM programming
Post by: dossic on December 15, 2008, 02:07:59 AM

Hi!

I am using the new COM interface via disphelper with great satisfaction.
I still have a couple of questions about that :
- may I use a variable as BYREF in GetComProperty ?
- how will I use arrays in GetComProperty ?

Sorry for asking help, I found no way to get thru.

Thanks to everybody.

Carlo

Title: Re: BYREF and Arrays in COM programming
Post by: dossic on January 07, 2009, 09:16:03 AM

I'll try to put in an clearer form (sorry for my English, is getting worse...).

I am using the nice ATLB103 software to elucidate and convert to EB all methods and functions. However, I had a couple of troubles :
case 1

declare virtual ReadAnalogWaveform (
int PositiveInput, // AIN <enum> [in]
int NegativeInput, // AIN <enum> [in]
int NumberOfSamples, // VT_I4 <int> [in]
pointer *pRetVal // *VT_SAFEARRAY [out]
), int; // VT_HRESULT <int>

case 2

a variable declared as [in][out]

Can you please help me to translate them into EB code (if it is possible)?

Thanks for the time any of you are dedicating me

Yours Carlo

IonicWind Software

IWBasic => General Questions => Topic started by: dossic on December 15, 2008, 02:07:59 AM