[sqlite] Sqlite callback in a class. Class-member error.

[aleks ponjavic]

I was using global variables to transfer data from the callback to my class, 
but now I need this function in two classes. Thus the global variables 
collide causing a multiple defintion, therefore I'm trying to wrap the 
callback into my class.

int MyFrame::callback(void *NotUsed, int argc, char **argv, char 
**azColName){
   int k;
   rows=argc;
   for(k=0;k<argc;k++)
   {
       if(argv[k])
       {
           buffer[k][counter]=strdup(argv[k]);
           gridColumnNames[k]=strdup(azColName[k]);
       }
   }
   counter++;
   return 0;
}

class MyFrame : public wxFrame
{
   public:
   	MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size,
               long style = wxDEFAULT_DIALOG_STYLE | wxMAXIMIZE_BOX | 
wxMINIMIZE_BOX);
   	void OnQuit(wxCommandEvent& event);
   	void OnAbout(wxCommandEvent& event);
   	void OnLoad();
   	void OnSave();
   	void OnSaveAs();
   	void ForeColChange();
   	void BackColChange();
   	void PurgeColours(wxColour col,int type);
   	void SetDefColours();
   	void TextColChange();

       static int callback(void *NotUsed, int argc, char **argv, char 
**azColName);

        wxString buffer[100][220];
       wxString gridColumnNames[40];
       int counter;
       int rows;
        sqlite3 *db;
        char *zErrMsg;
       Calendar *calendar;
        wxString fileName;
        DrillManager *drillmanager;
        wxColour defFore;
        wxColour defBack;
        wxColour defText;
   private:
       DECLARE_EVENT_TABLE()
};
27 D:\DOCUME~1\AleksP\Desktop\PROJEK~1\win32\myframe.cpp invalid use of 
member `MyFrame::rows' in static member  function
I get this error for all the variables used in the callback. Used when the 
variables are global and the callback outside the class it works fine. What 
is wrong?

Please ask questions if something is unclear I need to get this sorted out!
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