Convert or Run VBA Macro in C#

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Hello,

We are trying to figure out one of two possible scenarios. We need to either run this VBA macro in C# and pass the parameters received into the C# code. Or convert the vba (using DDE) to C# so that it can be run directly in the program. We are completely lost as none of us has ever programmed in C#. Any help would be greatly appreciated.

Sub ReceiveIt_1234567()

channel = DDEInitiate("Service", "Actions")
DDEExecute channel, "[SystemEvent(""ReceiveIt"",""User Name"", ""1234567"" )]"
DDETerminate channel

End Sub

Posted 17-Dec-09 4:19am

Radolf Usefer

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alexey.nayda · Answer 1 · 2010-01-19T03:01:00

Hi,

DDE depends on windows messaging. This means you need to use in your C# code SendMessage function that you can find in win32 api.

You can import this function to your C# code using this part of code.

C#

[DllImport("user32.dll")]
           public static extern int SendMessage(
                 int hWnd,      // handle to destination window
                 uint Msg,       // message
                 long wParam,  // first message parameter
                 long lParam   // second message parameter
                 );

But of course before use this method you need get handle of the window you want to send message to. You can do it either call FindWindow function from win32 api:

C#

[DllImport("user32.dll")]
public static extern IntPtr FindWindow(string className, string windowName);

or

you can use similar code to the following one:

C#

Process[] processes = Process.GetProcessesByName("YourProcessName");
foreach (Process process in processes)
{
    IntPtr windowHandle = p.MainWindowHandle;

    //CALL SendMessage function or do something else
}

Good luck,
Alexey