屏幕放大镜：一个简单的绘图程序，鼠标所指位置四周的像素放大，并显示在本程序的窗口中。功能上稍加扩展即可实现精确的屏幕取色。-The magnifying glass of the screen: a simple drawing program, the mouse is pointing to the location around the pixels enlarged and displayed in the window of the program. Function a little