在视图中画箭头的函数。DrawArrow(CDC *pDC, CPoint ptStart/*起始点*/, CPoint ptEnd/*终点*/),In view of the function arrow painting. DrawArrow (CDC* pDC, CPoint ptStart/* starting point* /, CPoint ptEnd/* end* /)

单击按钮切换画图状态，然后点击多动鼠标，画橡皮筋矩形，可以画多个。单击任意一个可以缩放。-Click the button to switch drawing, and then click to move the mouse, draw a rubber band rectangle, you can draw multiple. Click on any one can be scaled.

计算机图形学 关于画点,画圆,画三角形等,已经各种填充技术()