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?
This question is related to
c++
dll
compiler-errors
member-functions
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
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(...);
^^^^^^
};
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.
Source: Stackoverflow.com