Crash using an array of struct (.Net call)

Abder
Montreal,

Oct 5, 2009
7 Posts

0 ✔  |  ✗ 0  

Re: Crash using an array of struct (.Net call)

I'm trying to retreive an array of struct from a .Net call. I'm using the following example
public  myClass
{  

      public DuWord[] Processing ()
        {
           DuWord[] buffer = new DuWord[10];

       buffer[0].Data =1;    
       buffer[1].Data =2;    
       buffer[2].Data =3;    
      
           return buffer;
        }
        public struct DuWord
        {
            public UInt32 Data;
            public UInt32 Label;
            public UInt32 Ident;
            public UInt32 TimeStamp;
        }
}

ATEasy

cls1= new myClass()

cls1.Processing ()  
I have a crash with error Code #420 "Object method or property failed: the parameter is incorrect.
Could you please help me.

DrATEasy (Ron Y.)
Mission Viejo, CA

Oct 5, 2009
368 Posts

0 ✔  |  ✗ 0  

Re: Crash using an array of struct (.Net call)

The problem is with the return type converted by .NET to a variant with VT_ARRAY or VT_RECORD - which is not standard variant type for return. Try to change the struct to class, I think it will work.

Ronnie

Yitzhak S.
Ramt Hasharon,

Jan 8, 2019
3 Posts

0 ✔  |  ✗ 0  

Re: Crash using an array of struct (.Net call)

DrATEasy (Ron Y.) wrote:
The problem is with the return type converted by .NET to a variant with VT_ARRAY or VT_RECORD - which is not standard variant type for return. Try to change the struct to class, I think it will work.

Ronnie


Hi,
I have number of .Net (dll) that dependency one on another,  when I  made variable of one them (just make a new object) i received Run time error "#420 Object method of property failed..." , if I cant change the return type of the object. there is any solution?

(I am use ATEasy 7.0)

Tanks



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