UC知道问vc++里面的画图函数？
来源：百度知道 编辑：UC知道 时间：2024/09/24 14:35:46
dc.MoveTo(left,top);
dc.LineTo(right,top);
dc.LineTo(right,bottom);
dc.LineTo(left,bottom);
dc.LineTo(left,top);
这几句什么意思呢？
每句都什么意思呢？
dc.LineTo(right,top);
dc.LineTo(right,bottom);
dc.LineTo(left,bottom);
dc.LineTo(left,top);
这几句什么意思呢？
每句都什么意思呢？
dc.MoveTo(left,top); //将鼠标放在(left,top)点
dc.LineTo(right,top); //从(left,top)点至(right,top)点，画一条直线
下面是画一个矩形
dc.MoveTo(left,top);
dc.LineTo(right,top); //画上边线，(left,top)点至(right,top)点
dc.LineTo(right,bottom);//画右边线，(right,top)点至(right,bottom)点
dc.LineTo(left,bottom);//画下边线，(right,bottom)点至(left,bottom)
dc.LineTo(left,top);//画左边线，(left,bottom)点至(left,top)
dc.MoveTo(left,top); //画线的起始坐标
dc.LineTo(right,top); //从起始坐标到right,top坐标画一条线。
dc.LineTo(right,bottom); //然后right,top坐标画一条线到，right,bottom坐标。
以此类推。
dc.LineTo(left,bottom);
dc.LineTo(left,top);
最终实际画一个矩形