本代码是仿QQ截图代码，主要功能，用GDI截图用GDI+保存图片，包括窗口自动定位，后台到托盘，图像放大，移动，橡皮筋类重载等-This code is a fake screenshot QQ code, the main function, using GDI shots with GDI+ save the image, including automatic positioning window, the background to the tray, image zoom, move,