一个屏幕画笔，实现在桌面上画图的功能。有一个工具条采用不规则对话框实现，可靠边隐藏（与QQ类似）。界面简洁美观，值得借鉴。-A screen brushes, drawing on the desktop to achieve functions. Be a tool to achieve the use of irregular dialog, reliable hidden side (with similar QQ). Interface simple appearance, is wor