change const struct to variable?

[Technokrat]

I have the following:

// a struct for a combo box
struct CboDef
{
     LPCTSTR pszQryName;
     LPCTSTR pszFldDesc;
     LPCTSTR pszFldID;
}

-----------------------------
The existing cpp initiated the struct as a constant something like:

const CboDef m_CboDef[] =
{
   _T("select qry1"),
   _T("Desc1"),
   _T("ID1"),
   _T("select qry2"),
   _T("Desc2"),
   _T("ID2"),
}

---------------------------------
Requirements have changed, and I need select qry2 to be dynamic. If the form is opened as create new one query is run, if the form is opened as change existing a different query is run.

How do I keep my struct in place, and reference "select qry2" to change it on the fly?

 

[cpjust]

Well if you use std::string instead of LPCTSTR types, you can change their text whenever you want.

 

[ArkM]

How do I keep my struct in place...
What's my struct? There is a struct declaration only in your snippet. If you have

CboDef my_struct;

you may set the value of my_struct (three constant pointers), for example:

my_struct = m_CboDef[1]; // Now select qry2 case contents
... 
my_struct = m_CboDef[0]; // qry1 - etc

 

[Technokrat]

sorry, when I said my struct, I ment my CboDef struct. Not literally, "my_struct".

 

[ArkM]

Sorry, but CboDef is a class (well, type), not an object.
How do I keep my struct in place...
It's impossible to keep a class in place...
Sorry again, I can't understand your request.

To obtain a pointer to a proper structure from m_CboDef array, you may use standard C/C++ method:

const CboDef* pCboDef;
...
pCboDef = m_CboDef + 1; // (or &m_CboDef[1];) 2nd el ptr
...
pCboDef = m_CboDef; // - 1st element pointer