TextOut() function displays text but text disappears as the window is Minimized or restored

Question

I am unsing TextOut() Function to display some text in my window. It works fine and text is displayed as soon as the Window is Maximized.But as Soon as the Window is Minimized and restored again, all text displayed on window disappears :( Is there any way in which I can retain data displayed on my window even if it is Minimized? Waiting for response :(