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  • How to send a structure from VB .NET to C++ with SendMessage?

    Hello. I am trying to send a structure from VB .NET 2008 framework 3.5 to an application made in VC++ 6.0, using SendMessage and WM_COPYDATA. Here is the code:

    Code:
    <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Ansi)> _
        Public Structure MsgSTR
            Public code As String
            Public index1 As Integer
            Public index2 As Integer
            Public arr() As Integer
    ...
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  • changing code to get data from a yes/no field instead of form & SendMessage help

    Hello,

    I'm trying to incorporate some code that was used in an old database (access 2003 but everything works in 2007) by someone who no longer works with me that utilizes sendkeys to send employee (agent) exceptions into their schedule which is in a different application. The old database works fine as is however I'm making a database for training and trying to use the code with mine and just started learning VBA and could use some...
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  • Inserting data into an external program's text box using VB.Net?

    Hello!

    I'm currently trying to fill in a dialogue box (from an external program) using a VB.Net app. I've succeeded in finding the window handle for the external program (using the FindWindowByCap tion function), but am having some difficulty finding the handles for the child windows (which, in this case, would be text boxes). Most tutorials that I've found online suggest using Spy ++ (or other programs) that I don't have access to...
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  • SendMessage without waiting or PostMessage with Data

    Hi Guys,
    I need to send a string from c# application to another c# Application.

    On receiving application side the code i have is below.

    Code:
     protected override void WndProc(ref Message m)
            {
                switch (m.Msg)
                {
                    case (int)Msg.WM_USER:
                        break;
                    case (int)Msg.WM_COPYDATA:
    ...
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