Create forms from threads

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  • Kevin Chabot
    #1

    Create forms from threads

    Hi,

    I need to be able to create one or more form(s) from a method that is
    called from different threads. When this form is created, it appears but
    it does not receive any message. It looks blank, and when you move your
    cursor over it, it becomes an hourglass.

    Can anyone help me with this?
    Thanx in advance...

    Kind regards,
    Kevin Chabot
    Tags: None
    • Nicholas Paldino [.NET/C# MVP]
      #2
      Re: Create forms from threads

      Kevin,

      What you will want to do is call the Invoke method on a control that is
      hosted on the main UI thread. This method will take a delegate and an array
      of objects (the parameters) and call the target of that delegate in the main
      UI thread. You would create a delegate which would point to a method which
      creates and shows the form.

      You could also run a new message loop through a call to the static Run
      method on the Application class in the new thread, but I would advise
      against that (it's not common practice, and I don't think the Run method was
      meant to be called more than once).

      Hope this helps.

      --
      - Nicholas Paldino [.NET/C# MVP]
      - mvp@spam.guard. caspershouse.co m

      "Kevin Chabot" <kevinchabot@sk ynet.be> wrote in message
      news:%23ZxalW4Z FHA.3808@TK2MSF TNGP14.phx.gbl. ..[color=blue]
      > Hi,
      >
      > I need to be able to create one or more form(s) from a method that is
      > called from different threads. When this form is created, it appears but
      > it does not receive any message. It looks blank, and when you move your
      > cursor over it, it becomes an hourglass.
      >
      > Can anyone help me with this?
      > Thanx in advance...
      >
      > Kind regards,
      > Kevin Chabot[/color]


        Comment

        • Kevin Chabot
          #3
          Re: Create forms from threads

          Hi,

          Great! Thank you very much.

          Kind regards,
          Kevin Chabot

          Nicholas Paldino [.NET/C# MVP] wrote:[color=blue]
          > Kevin,
          >
          > What you will want to do is call the Invoke method on a control that is
          > hosted on the main UI thread. This method will take a delegate and an array
          > of objects (the parameters) and call the target of that delegate in the main
          > UI thread. You would create a delegate which would point to a method which
          > creates and shows the form.
          >
          > You could also run a new message loop through a call to the static Run
          > method on the Application class in the new thread, but I would advise
          > against that (it's not common practice, and I don't think the Run method was
          > meant to be called more than once).
          >
          > Hope this helps.
          >[/color]

            Comment

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