BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  TmainMenu          BorlandTalk.com Forum Index -> Delphi VCL Components Using View previous topic :: View next topic   Author Message Jens Munk Guest Posted: Tue Oct 28, 2003 10:12 pm    Post subject: TmainMenu In this application I have a loop always running (checking some external hardware) but when I pull down a menu from TMainMenu the loop stops until I click the menu item. I know the same thing happens in e.g. visual basic, but is there any way of keeping my loop running while the menu is pulled down? The obvious suggestion would be to put the loop in a separate thread but I don't want to do that for other reasons. Thanks, Jens. Back to top Jon Jacobs Guest Posted: Tue Oct 28, 2003 11:31 pm    Post subject: Re: TmainMenu Put your loop in a separate thread. Jon "Jens Munk" <j.munk (AT) maccor (DOT) dk> wrote Quote: In this application I have a loop always running (checking some external hardware) but when I pull down a menu from TMainMenu the loop stops until I click the menu item. I know the same thing happens in e.g. visual basic, but is there any way of keeping my loop running while the menu is pulled down? The obvious suggestion would be to put the loop in a separate thread but I don't want to do that for other reasons. Thanks, Jens. Back to top Kurt Barthelmess Guest Posted: Wed Oct 29, 2003 12:52 am    Post subject: Re: TmainMenu "Jens Munk" <j.munk (AT) maccor (DOT) dk> wrote: Quote: In this application I have a loop always running (checking some external hardware) but when I pull down a menu from TMainMenu the loop stops until I click the menu item. I know the same thing happens in e.g. visual basic, but is there any way of keeping my loop running while the menu is pulled down? What are you doing now to keep this loop running? Calling Application.ProcessMessages in between times? I don't know of any elegant solutions. The problem is that once you surrender control be that call to ProcessMessages, you are stuck until that menu closes. You can still get messages, however (this is the not so elegant solution<g>), so if you restructure your code so that it does a "chunk" of stuff in response to an event like a timer or an OnIdle event, it can continue to grind. Good luck. Kurt Back to top Jens Munk Guest Posted: Wed Oct 29, 2003 5:45 am    Post subject: Re: TmainMenu Thanks Kurt, Comments inserted below, Jens. Quote: What are you doing now to keep this loop running? Calling Application.ProcessMessages in between times? ==>A couple of things: The application was written in Visual Basic when I took over and I am now in the process of migrating to Delphi. So in the VB application a timer is started when the menu is started as you suggest below. In Delphi I have detached the user interface from the core grinding part of the program into a separate application mainly to get remote operation. So really I do not desparately need a menu in the "server" application since I can just use a few buttons. Currently just three functions are needed: One to setup user rights, one to call a maintenance screen and one to shut down. Quote: I don't know of any elegant solutions. The problem is that once you surrender control be that call to ProcessMessages, you are stuck until that menu closes. You can still get messages, however (this is the not so elegant solution<g>), so if you restructure your code so that it does a "chunk" of stuff in response to an event like a timer or an OnIdle event, it can continue to grind. ==>I will just go for plain buttons instead then. I want my server application to be lean, clean and solid. The reason for my question Is that I just wanted to be 100% sure that I wasn't missing something to get it working in a simple way, but apparently I am not. Quote: Good luck. 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