C# Signature:

[DllImport("user32.dll", SetLastError=true, CharSet=CharSet.Auto)]
static extern bool SendMessageCallback(IntPtr hWnd, uint Msg, UIntPtr wParam,
    IntPtr lParam, SendMessageDelegate lpCallBack, UIntPtr dwData);

User-Defined Types:

None.

Notes:

C# signature for the SendMessageDelegate:

delegate void SendMessageDelegate(IntPtr hWnd, uint uMsg, UIntPtr dwData, IntPtr lResult);

Tips & Tricks:

Please add some!

Sample Code:

Please add some!

Alternative Managed API:

Do you know one? Please contribute it!