To my knowledge the actual structure and it's sub-structure is of no importance 
at all - you only pass a memory pointer. You use the Length field to control 
how many bytes to use of the key.


        -----Ursprungligt meddelande-----
        Från: genom 
Adam Walker
        Skickat: må 2005-01-10 11:58
        Till: c400-l@xxxxxxxxxxxx
        Ämne: RE: [C400-L] using _Rreadk with a partial key - any examples?

        I tried setting the other fields to blank or 0, but no joy.  So i've 
removed those fields from the struct and just kept the seq.  The key length is 
set to the struct size.  this approach seems to work well.

        thanks for your help guys.


        typedef struct {
         decimal(7,0) seq;   
         //char sCus[6];
         //char sCLC[3];
         //char cPrime;
        } SXKey;


            char* pKeyBuffer = malloc(sizeof(SXKey));
            SXKey* pKey = (SXKey*) pKeyBuffer;
            int nKeyLength = sizeof(SXKey);
            pKey->seq = 28;


            pFeedback = _Rreadk(pFile, 

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