When developing web-pages or graphics we frequently need a tool that will give us the RGB value of the color of a particular region in some other application s window. An example could be that you need to know the background color of a JPG image so t

简单的选择图片的应用，包含button控件、pictureBox控件，主要实现选图功能-Simple picture applications, including button controls PictureBox control, pick