Subject Re: radio button From Mustansir Ghor <mustan31@hotmail.com> Date Wed, 22 Jul 2020 14:58:57 -0400 Newsgroups dbase.getting-started Dear Mervyn when running the form it said :duflp:point.cc file missing. I checked in the DUFLP folder but I do not have this file. Can you send me. Regards Mustansir Mervyn Bick Wrote: > On 2020-07-12 06:42, Mustansir Ghor wrote: > > Dear All > > > > I am using radio buttons where on selection the current data needs to be cleared in the grid. On  selecting I put msgbox for confirmation. If the user says "NO" then I need to restore to original selection. Since on selecting,  the ongotfocus event of object being selected executes, I wonder how we capture the before selection state and use it to restore for "NO" option of user > > The radiobutton object has what appears to be a bug in that the onChange > event fires before the onLeftMouseDown event fires.  This means there is > no opportunity to warn the user of possible consequences before the > actual selection change is made. > > The CALLBACK command was introduced with dBASE Plus 8 and this has given > us the ability to look inside Windows and see keystrokes and mouse > events before dBASE does.  Using  CALLBACK and some Windows API > functions I have managed to put together a custom radiobutton which > looks as if it does what you need. > > The custom control and a test form are attached. > > Mervyn. >