Send message to a hwnd in C#

Question

I have a WPF application and a MFC application. I want to do a two communication between them. I can use SendMessage in mfc application to send messages to WPF application. How can I do the same in WPF application?

Just pinvoke SendMessage(). Do consider a better mousetrap like named pipes or sockets, much easier to find the other end and much easier to use in a WPF app. — Hans Passant
– Hans Passant, Commented Jun 30, 2013 at 13:57

Malik Çelik · Accepted Answer · 2013-07-03 11:12:10Z

1

If you can do it in MFC, then you can do it in C# too by importing the SendMessage API call:

[DllImport("user32.dll", CharSet = CharSet.Auto)]
static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, StringBuilder lParam);

You can find sample usage of SendMessage in this link.

answered Jul 3, 2013 at 11:12

Malik Çelik

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