using System . Runtime . InteropServices;
using System . Diagnostics;
[ DllImport ( "User32.DLL" )]
public static extern int SendMessage( IntPtr hWnd,
uint Msg, int wParam, string lParam);
[ DllImport ( "User32.DLL" )]
public static extern IntPtr FindWindowEx( IntPtr hwndParent,
IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
public const uint WM_SETTEXT = 0x000C ;
private void button1_Click( object sender , EventArgs e)
{
Process vProcess = Process . Start( "notepad.exe" );
while (vProcess . MainWindowHandle == IntPtr . Zero) vProcess . Refresh();
IntPtr vHandle = FindWindowEx(vProcess . MainWindowHandle,
IntPtr . Zero, "Edit" , null );
SendMessage(vHandle, WM_SETTEXT, 0 , "Zswang );
}