On not repainting dialog boxes.

Hi People,

I just thought I'd post this thought.

I've variously been having problems with pieces of code if I run them 
too often (actually, it turned out that this was because I had created 
but not activated my swap file.  Who'd have guessed?). Anyway in the 
course of trying to track this down, I came up with the following piece 
of code, which I decided to circulate (maybe you all do it anyway).

First of all I create a global variable called $gl_dialog_base, then if 
I want to create a screen, say i_Booking, I use a derived function 
i_Booking -> new, which creates the dialog box and paints the controls.  
Then I populates the controls with data (setInitialDataState).

I update the global variable and the next time round I just populate the 
data.

Like this:

     if (not $gl_dialog_base{bookingNew}){
         $dlg_booking= i_Booking -> new ($i_frame, wxID_ANY, wxID_ADD, 
wxDefaultPosition,[$gl_cfg->{monitor_resolution_x}, 
$gl_cfg->{monitor_resolution_y}],  wxNO_BORDER, "" );
         $dlg_booking->setInitialDataState(wxID_ADD);
         $gl_dialog_base{bookingNew} = {
                         instantiated => 1,
                         dialog_pointer => $dlg_booking,
                           };
     } else {
         $dlg_booking= $gl_dialog_base{bookingNew}{dialog_pointer};
         $dlg_booking->setInitialDataState(wxID_ADD);
     }

It's more efficient, much quicker, uses less memory and crashes less 
frequently (if you haven't activated your swap file).

If anyone else has any ideas for efficiency, I'd love to hear.

Have fun,

Regards,

Steve.