Windows API Functions in C#

[DllImport("user32.dll",EntryPoint="FindWindow",CharSet=CharSet.UNICODE)]
Public static extern int MyFindWindow(string _WindowClassName, string _WindowName);

Using g**gle won't hurt you, you know?

I am capturing the window handle of an external application (or any external app) using the GetForegroundWindow() api function. Once I have the handle I want to locate a field and send write text to that field. It seems that in VB6 there was a way to locate what the field of a window was after you grabbed the handle for that window. Does anyone know of a way to do this in C#?

Thank you

I can sort of fake this using the SetActiveWindow(int hWnd) function and then using SendKeys.Send() to send the text. Kind of dirty but it is working.