c++ - show pop-up message in front of SaveAs dialog -

in windows application, possible show popup message in front of saveas dialog after saveas dialog being opened? managed popup shows after dialog closed.

i need edit old application written in c++ (i not author) can't manage task. part of code:

/* ---- called display save file dialog ---- */

ofn.hwndowner = hwnd;  ofn.lpstrfile = lpstrfilename;  ofn.lpstrtitle = lpstrtitlename;  res = getsavefilenamew( &ofn );  /* ---- fix file extension ---- */  messagebox(null, "test", "testing", mb_ok); 

thanks,
ilija

if understand correct, want check stuff (for example, file extension) before closing dialog , show message withou closing. if it's please @ ofn_enablehook flag in openfilename structure. in case code like

ofn.hwndowner = hwnd;  ofn.lpstrfile = lpstrfilename;  ofn.lpstrtitle = lpstrtitlename;  /* enables hook function */ ofn.flags |= ofn_enablehook; ofn.ofn.lpfnhook = (lpofnhookproc) myhookproc;  /* code here */  res = getsavefilenamew( &ofn ); 

code myhookproc this:

static uint callback myhookproc( hwnd hdlg, uint umsg, wparam wparam, lparam lparam) {     if (umsg == wm_notify) {         ofnotifyw *notify = (ofnotifyw *) lparam;          if (notify->hdr.code == cdn_fileok) {             /* code here */         }     } } 

hope helpful you.