what does error a nonstatic member reference must be relative to a specific object mean

Question

int CPMSifDlg  EncodeAndSend char  firstName  char  lastName  char  roomNumber  char  userId  char  userFirstName  char  userLastName                 return 1     extern  C          declspec dllexport  int start char  firstName  char  lastName  char  roomNumber  char  userId  char  userFirstName  char  userLastName                return CPMSifDlg  EncodeAndSend firstName  lastName  roomNumber  userId  userFirstName  userLastName             On line return CPMSifDlg  EncodeAndSend I have an error   Error   a nonstatic member reference must be relative to a specific object   What does it mean

User · Answer

Only static functions are called with class name.

classname::Staicfunction();

Non static functions have to be called using objects.

classname obj;
obj.Somefunction();

This is exactly what your error means. Since your function is non static you have to use a object reference to invoke it.

User · Answer

EncodeAndSend is not a static function  which means it can be called on an instance of the class CPMSifDlg  You cannot write this    CPMSifDlg  EncodeAndSend              wrong - EncodeAndSend is not static   It should rather be called as    CPMSifDlg dlg    create instance  assuming it has default constructor   dlg EncodeAndSend               correct

User · Answer

CPMSifDlg  EncodeAndSend   method is declared as non-static and thus it must be called using an object of CPMSifDlg  e g   CPMSifDlg obj  return obj EncodeAndSend firstName  lastName  roomNumber  userId  userFirstName  userLastName     If EncodeAndSend doesn t use relate any specifics of an object  i e  this  but general for the class CPMSifDlg then declare it as static   class CPMSifDlg         static int EncodeAndSend

[c++] what does "error : a nonstatic member reference must be relative to a specific object" mean?

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