No error. Form B is contextual Help that is invoked from a Help button on a messagebox, and once the permission to do what's on the messagebox is OKd or Cancelled, I want the Help form to disappear. Independently, the application does something depending on the users response, but I just want the Help form to disappear. And, I don't want to implement a full contextual Help system.
_____ Ian Thomas Victoria Park, Western Australia _____ From: ozdotnet-boun...@ozdotnet.com [mailto:ozdotnet-boun...@ozdotnet.com] On Behalf Of Glen Harvy Sent: Saturday, December 18, 2010 12:10 PM To: ozDotNet Subject: Re: Closing form instance Can you explain what you mean by 'automatically'. I can't come to grips with the scenario and why you would need to use SendMessage at all. Form A pops up a message box presumably because of an error. The message box can show Form B which contains further detailed data about the error or the price of eggs in China blah blah... On 18/12/2010 12:49 PM, Ian Thomas wrote: I have an instance of a help form that is started from a Help button on a messagebox, itself hosted on a Windows Form. It uses a handler for the HelpRequested event, and distinguishes between different Help messages via the tag property of the sender control. I think that is fairly standard or commonly used. The only way I can find to close the help form automatically, is by storing its handle and using SendMessage(hWnd, WM_CLOSE,0,0) which seems clumsy (I believe any Form.Close() actually does the same, but it's the declarations and single line bits of code in various places that just seems messy). Of course closing the application (or the form hosting the messagebox) closes the help form, and I don't see any bad side-effects anywhere. Are there better ways? _____ Ian Thomas Victoria Park, Western Australia
