可以使用点,线,矩形等进行画画 主要使用ON_WM_LBUTTONDOWN() ON_WM_MOUSEMOVE() ON_WM_LBUTTONUP() 三个函数进行操作-can use points, lines, Rectangular etc. paint mainly use ON_WM_LBUTTONDOWN () ON_WM_MOUS EMOVE () ON_WM_LBUTTONUP () function to operate 3

该小型绘图软件，可实现工具栏画圆，椭圆，线，点，并能改变其长度大小、填充颜色等功能-The Small graphics software can make Circle, ellipse, line, point,Change the length of the size, fill color and so on