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Stupid question

Scheduled Pinned Locked Moved Visual Basic
questionlearningcsharp
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  • T teuneboon

    I'm quite a vb.net beginner and I lost my library-card so I have to wait a month before I can get a book about this: How do I load a dll file into my vb.net program?? (I'm only 15 so I'm not very good at vb.net)

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    Allah On Acid
    wrote on last edited by
    #7

    If you are talking about a Win32 API DLL, you do it like this: Declare Function (or Sub) (FunctionName) Lib (Dllname) Alias (Function Name in DLL) then the arguments. for instance: Declare Function MsgBox Lib "user32.dll" _ Alias "MessageBox" (ByVal hWnd As Integer, _ ByVal txt As String, ByVal caption As String, _ ByVal Type As Integer) As Integer Then you could call it like any other function. There is more info about this here: http://kpdweb.cjb.net/

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    • T teuneboon

      that's a great help:-D sorry but not really, none of the codes works -- modified at 16:34 Thursday 23rd February, 2006

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      progload
      wrote on last edited by
      #8

      teuneboon, What do you mean by it doesn't work? I works in my vb.net... Declare Auto Function MyMessageBox Lib "user32.dll" Alias _ "MessageBox" (ByVal hWnd As Integer, ByVal msg As String, _ ByVal Caption As String, ByVal Tpe As Integer) As Integer Private Sub Button1_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles Button1.Click MyMessageBox(0, "Hello World !!!", "Project Title", 0) End Sub progload

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      • J J4amieC

        OK, so it looks like a COM dll to me, are you using Visual Studio to write your program?

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        teuneboon
        wrote on last edited by
        #9

        nope visual express(it's .net by the way)

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        • P progload

          teuneboon, What do you mean by it doesn't work? I works in my vb.net... Declare Auto Function MyMessageBox Lib "user32.dll" Alias _ "MessageBox" (ByVal hWnd As Integer, ByVal msg As String, _ ByVal Caption As String, ByVal Tpe As Integer) As Integer Private Sub Button1_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles Button1.Click MyMessageBox(0, "Hello World !!!", "Project Title", 0) End Sub progload

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          teuneboon
          wrote on last edited by
          #10

          nope it doesn't work

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          • T teuneboon

            nope it doesn't work

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            progload
            wrote on last edited by
            #11

            teuneboon, hmmm... I guess i won't be able to help, It works here on mine just fine. sorry, progload

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            • T teuneboon

              I'm quite a vb.net beginner and I lost my library-card so I have to wait a month before I can get a book about this: How do I load a dll file into my vb.net program?? (I'm only 15 so I'm not very good at vb.net)

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              Christian Graus
              wrote on last edited by
              #12

              If you're using PInvoke, you probably want to check out www.pinvoke.net, they may have done the hard yards for you already. I was 13 when I started coding. *sigh* That was in 1982. Christian Graus - Microsoft MVP - C++

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              • C Christian Graus

                If you're using PInvoke, you probably want to check out www.pinvoke.net, they may have done the hard yards for you already. I was 13 when I started coding. *sigh* That was in 1982. Christian Graus - Microsoft MVP - C++

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                Colin Angus Mackay
                wrote on last edited by
                #13

                The early 80s were a good time to start coding. :-D It brings back the memories. My dad borrowed a Commodore Pet from work when I was 6. A friend had a Sinclair ZX81 and then my dad bought a ZX Spectrum in 1983. ColinMackay.net Scottish Developers are looking for speakers for user group sessions over the next few months. Do you want to know more?

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                • C Colin Angus Mackay

                  The early 80s were a good time to start coding. :-D It brings back the memories. My dad borrowed a Commodore Pet from work when I was 6. A friend had a Sinclair ZX81 and then my dad bought a ZX Spectrum in 1983. ColinMackay.net Scottish Developers are looking for speakers for user group sessions over the next few months. Do you want to know more?

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                  Christian Graus
                  wrote on last edited by
                  #14

                  Yeah, I was aware of all those platforms. I learned on an Applle ][, only when I blew it up did I buy a C64, and then a slew of Amigas over the years. I often think if I'd not tried to build an NMI card, I'd be one of 50 people worldwide writing software for the Mac today. Christian Graus - Microsoft MVP - C++

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                  • P progload

                    teuneboon, hmmm... I guess i won't be able to help, It works here on mine just fine. sorry, progload

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                    teuneboon
                    wrote on last edited by
                    #15

                    I now know how it works (I inserted the code in a form :S) but the call fuction doesn't work in my form when I want to call the class1 file

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                    • T teuneboon

                      I now know how it works (I inserted the code in a form :S) but the call fuction doesn't work in my form when I want to call the class1 file

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                      progload
                      wrote on last edited by
                      #16

                      teuneboon, If you want to put the Delcare Auto Function... in Class1 and then Call it from Form1, do this: Change the line in your Form1 Button1_Click that reads: MyMessageBox(0, "Hello World !!!", "Project Title", 0) Change it to this: Call Class1.MyMessageBox(0, "Hello World !!!", "Project Title", 0) progload

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                      • P progload

                        teuneboon, If you want to put the Delcare Auto Function... in Class1 and then Call it from Form1, do this: Change the line in your Form1 Button1_Click that reads: MyMessageBox(0, "Hello World !!!", "Project Title", 0) Change it to this: Call Class1.MyMessageBox(0, "Hello World !!!", "Project Title", 0) progload

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                        teuneboon
                        wrote on last edited by
                        #17

                        ok now I know alot more about class and dll, thanks all

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