/// <summary>
/// Makes a connection between a specified window handle
/// and the callback to be called when that message is received.
/// </summary>
private WindowHook(IntPtr handle, WndProcCallback callback)
{
Debug.Assert(handle != IntPtr.Zero, "Window handle cannot be null");
Debug.Assert(callback != null, "Callback method should be specified");
_handle = handle;
_mainWndProc = WindowProc;
_callback = callback;
// Subclassing window
_originalWndProc = User32.SetWindowLong(_handle, User32.GWL_WNDPROC, Marshal.GetFunctionPointerForDelegate(_mainWndProc));
}
/// <summary>
/// Makes a connection between a specified window handle
/// and the callback to be called when that message is received.
/// </summary>
private WindowHook(IntPtr handle, WndProcCallback callback)
{
Debug.Assert(handle != IntPtr.Zero, "Window handle cannot be null");
Debug.Assert(callback != null, "Callback method should be specified");
_handle = handle;
_mainWndProc = WindowProc;
_callback = callback;
// Subclassing window
_originalWndProc = User32.SetWindowLong(_handle, User32.GWL_WNDPROC, Marshal.GetFunctionPointerForDelegate(_mainWndProc));
}