hello friends

I am vinayaka from bangalore india.
I am new to symbian coding, can anybody explains me what is the meaning of the following code.
If it is a DLL call then where will be this DLL stored.
I want explaination in detail.

CAL_DLL_USAGE P_appAddRecord GetMe_appAddRecordPtr()
return appAddRecord;

thanks in advance
vinayaka karjigi