CopySymbolNameByAddress

This method returns the complete (ADS) symbol name of a transferred symbol. The method returns the size of the string (including null termination). If the destination buffer is too small, it is emptied by a null termination and returned as length 0.

Syntax

METHOD CopySymbolNameByAddress : UDINT
VAR_INPUT
    nData     : UDINT;    // size of symbol
    pData     : PVOID;    // address of symbol
END_VAR 
VAR_IN_OUT CONSTANT
    sName     : STRING;    // target string buffer where the symbol name should be copied to
END_VAR
VAR_INPUT
    nName     : UDINT;    // size in bytes of target string buffer
END_VAR
VAR_OUTPUT
  hrErrorCode : HRESULT;
END_VAR

Return value

Inputs

/ Inputs/Outputs

Outputs

Sample call:

nSymbolSize := fbJsonDataType.CopySymbolNameByAddress(nData:=SIZEOF(stValues), pData:=ADR(stValues), sName:=sSymbolName, nName:=SIZEOF(sSymbolName));